SECTION 625 - SURVEY OPERATIONS (Last Revised May, 2018January, 2026)
625-1 Description
625-1.01 General. Some survey work is required be completed under the direction of a Land Surveyor or
Professional Engineer in accordance with the professional license requirements contained in NYS Education Law.
625-1.02 Survey Operations. This work shall consist of providing all necessary survey work to establish,
spatially position, and verify the locations of existing and proposed terrain features and measure quantities of items in accordance with the contract documents or as directed by the Engineer. This work includes but is not limited to the establishment, reestablishment or localization of primary and secondary
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 control, the stakeout or layout of proposed features, the initialization, calibration and navigation of automated equipment operations, the location or verification of existing terrain or of constructed features, the verification of geospatial data for proposed construction work and the coordination and sharing of engineering data with the Department or other contract stakeholders.
625-1.03 Right of Way Markers. This work shall consist of furnishing, installing and certifying right of
way markers at the positions described on the right of way appropriation maps, in accordance with the contract documents and the Standard Sheet.
625-1.04 Permanent Survey Markers. This work shall consist of furnishing, installing, and certifying
permanent survey markers in accordance with the details shown on the appropriate Standard Sheet.
625-1.05 Supplemental Site Survey. This work shall consist of providing all necessary field survey and
terrain mapping necessary to locate, spatially position, verify and digitally map the locations of existing above or below ground terrain features as described in the contract documents or as directed by the Engineer. The limits of this supplemental survey will be described in the contract documents.
625-1.06 GPS Inspection Units. This work shall consist of furnishing, configuring, installing,
maintaining and removing Global Positioning System (GPS) units as needed for use by the Engineer and their inspection staff, including the training of the Engineer and their representatives on the use of the GPS units provided.
625-2 Materials
625-2.01 General. None specified.
625-2.02 Survey Operations. None specified.
625-2.03 Right of Way Markers.
A.Concrete Right of Way Markers.Concrete ROW Markers shall conform to the requirements of §712-05 Precast Concrete Right-of-Way Markers, and shall be in accordance with the details shown on the Standard Sheet.
B.Steel Pin and Cap Right of Way Markers. Reinforcing steel used for the shank shall conform to ASTM A615, Grade 300 or Grade 420. It shall be epoxy coated for its entire length in accordance with §705-14 Longitudinal Joint Ties or §709-04 Epoxy Coated Bar Reinforcement. The cap shall be aluminum or a corrosion resistant aluminum alloy. The cap shall weigh a minimum of 50 grams and fasten to the shank by means of threading or force fitting. A commercial grade silicone sealant shall be used between the cap and the shank. Steel Pin and Cap-Type Markers shall be anchored into rock using Concrete Grouting Material meeting the requirements of §701-05 Concrete Grouting Material.
625-2.04 Permanent Survey Markers. The concrete shall be Performance Engineered Mixture (PEM)
Portland Cement Concrete that meets the appropriate mix design requirements specified in Table 2 of Materials Procedure (MP) 501-2 Mix Design and Approval Procedure for Performance Engineered Mixtures – Structural Concrete except that the requirement for inspection facilities, automated batching controls and recordation do not apply. The batching, mixing, and curing methods and the inspection facilities shall meet the approval of the Department. The Contractor has the option to use precast permanent survey markers in place of cast in place units. Precast units shall meet §712-24.
625-2.05 Supplemental Site Survey. None specified.
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625-2.06 GPS Inspection Units. Each GPS Unit shall include all necessary components, communication
devices, integrated antennae and receiver, controller and/or data collector, cables, software, operating manuals, attachments, and fastening hardware to meet the minimum requirements described below.
A.All GPS Inspection Units.
1.All GPS units provided for a single contract shall be of the same model and manufacturer; and shall include, and be licensed to operate, the same versions of GPS planning software, data collection software, navigation software, stakeout software and post processing software. All software provided (including firmware) shall be the most current available from the manufacturer at the time of delivery of the GPS units. GPS units should be of the same manufacturer as those used by the Contractor. GPS units shall not be more than 2 years old from the date of manufacturing to the time of delivery. To verify the age of the GPS units, the Contractor shall provide a dated copy of the manufacturer’s receipt(s) for the purchase, lease or rental of the units.
2.GPS units shall include both standard USB cable and Bluetooth wireless technology for data transfer.
3.Data shall be capable of being copied onto or from a removable industry standard data storage card (eg: secure digital SD Card). Each GPS Unit shall include 2 data storage cards, each with a minimum capacity of 4 GB.
4.GPS units shall include the ability to import/export and display point and alignment data which is in XML format, and also import graphics files which are in DGN or DXF format.
5.GPS units shall have an internal, or modular, rechargeable battery system capable of operating a minimum of 8 hours (may include interchangeable batteries), including the battery charger.
6.GPS units shall include a hard or soft shell carry case, and all appropriate operation manuals.
B.Survey Grade GPS Inspection Units.
1.GPS units shall be equipped to receive Global Positioning System (GPS), GLONASS and GNSS position data.
2.GPS units shall be equipped to receive, and be capable of utilizing, Real Time Kinematics (RTK) correctional data (current version of RTCM format) through internet protocol as provided from the NYS Continuously Operating Reference System (NYS CORS) Network. This shall include all necessary communication devices, repeaters and systems, data service plans and communications to meet the minimum required accuracy and not exceed a 2 second latency at the rover. Whichever communication method is utilized by the Contractor to broadcast the NYS CORS RTK correctional data, the Contractor shall ensure that the RTK data shall be available at all locations across the entire contract site during all hours of construction and inspection operations.
3.GPS units shall include the capability to “localize” both the horizontal and vertical control to local project monumentation (also known as calibrate), while utilizing RTK corrections from a reference network.
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4.GPS units shall include either an integrated or modular communication device capable of receiving RTK correctional data to satisfy the requirement of using NYS CORS RTK corrections.
5.GPS units shall have the ability to display the number of satellites tracked at any one time, and indicate the accuracy quality of each measurement relative to the strength of signals, and the GDOP (Geometric Dilution of Precision).
6.GPS Unit shall include dual frequency receivers.
7.Minimum Required Kinematic Accuracy relative to primary project control (CORS): Horizontal: 0.033 ft + 1.0 ppm; Vertical: 0.065 ft + 1.0 ppm
8.All necessary hardware and software shall be included (including communication drivers) to connect the GPS unit to a Department provided Tablet PC and communicate/exchange positional data with Bentley™ OnSite software. Firmware used on the GPS unit shall be verified as interoperable with Bentley™ OnSite software. If the firmware cannot be verified as being interoperable with Bentley™ OnSite, the next older version may be used.
9.The data controller shall permit the user to program and store multiple configurations (also known as user preferences) prior to the actual field measurements. Configurations shall be capable of being stored and recalled in the field.
10.GPS units shall include one fixed height rover rod of 6.56 feet in length, one attachable bipod which is compatible with the rover rod, and one topo shoe.
11.A GPS unit set up to operate as a base station shall include all necessary additional cables, hardware, fasteners or accessories necessary to install it in a fixed semi-permanent location, . will not be considered as a rover unit, and therefore will not require a rover rod, a bi-pod, or a topo shoe.
C.Mapping Grade GPS Inspection Units.
1.Minimum Required Kinematic Accuracy: less than 3.0 feet in real time.
2.GPS units shall also provide standard support for the Wide Area Augmentation System (WAAS) position correction services.
625-3 Construction Details
625-3.01 General.
A.Professional Responsibilities.
1.The following types of Survey Operations shall be completed by the Contractor under the direction of a Land Surveyor. This requirement is directly or indirectly associated with the professional license requirements contained in Article 145 of the NYS Education Law.
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a.Establishment, reestablishment or localization of primary or secondary control which shall be used for:
1.Establishing boundaries of new right of way appropriated for this contract.
2.Location of property or highway boundary markers.
3.Tie measurements to, or resetting of control points.
b.Location or resetting of existing highway and property boundary markers by reference ties to or from contract control to protect their integrity.
c.Establishment or certification of location of right of way markers and permanent survey markers.
2.The following types of Survey Operations shall be completed by the Contractor under the direction of either a Land Surveyor or Professional Engineer.
a.Establishment, reestablishment or localization of primary or secondary control which shall be used for: (1)Establishing location for horizontal or vertical roadway alignment.
2.Establishing location for the horizontal or vertical alignment of a structure.
3.Establishing or localizing reference base station for Global Positioning System (GPS) control work.
b.Establishing new horizontal or vertical roadway alignment in the field from contract control either by conventional stakeout methods or by use of automated equipment operations.
B.Survey/Engineering Geospatial Data. All establishments or reestablishment of contract primary or secondary control, and the survey collection of terrain data shall be performed in accordance with the standards and procedures required in the Department’s Land Surveying Standards and Procedures Manual. The Contractor shall incorporate the NYS CORS network into contract control to facilitate the use of GPS survey within the site and on the same datum by other project stakeholders, or to align with other adjacent projects. When the Department provides electronic copies of engineering data to the Contractor, files should follow the standard file naming conventions listed in Appendix 14 of the Department’s Project Development Manual.
1.Existing Terrain Data. When an existing digital terrain model was developed during design and provided for construction purposes, and possibly updated during construction by supplemental survey, the Department and Contractor shall use that information as a basis from which to develop contract pay item quantities. The Contractor shall consider all existing terrain data supplied by the Department as being within acceptable tolerances, except where changes or additions have been approved by the Engineer. If the Contractor questions the accuracy of the existing terrain data provided, the Contractor may verify any or all portion(s) of the existing terrain model, at no additional cost to the State, in accordance with §105-10 Survey and Stakeout. All exceptions or discrepancies found with the supplied existing terrain data shall be brought to
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 the attention of the Engineer, in writing, and terrain data modifications shall be mutually agreed upon and shared with both parties prior to beginning construction operations within those areas being modified. Changes to existing terrain data will not be accepted by the Department where existing terrain is verified to be within Departmental accepted positional tolerances in accordance with the Department’s Land Surveying Standards and Procedures Manual, or after the Contractor has disturbed the existing ground surface.
2.Proposed Data. When proposed digital terrain models (or surfaces), proposed alignments and proposed graphics were developed during design and provided for construction purposes, or revised during construction due to site changes or redesign, the Department and Contractor shall use that information from which to position and compute applicable contract pay item quantities and to field verify positional locations of constructed items. When the Contractor and Department agree to utilize the proposed digital terrain data (surface), alignments or graphics the Contractor shall first review its consistency with all other contract information, and review for any perceived physical conflicts or inconsistencies of information prior to using the data in the field for any construction purpose. All exceptions or discrepancies with the supplied data shall be brought to the attention of the Engineer, in writing, and terrain data, alignment or graphics modifications shall be approved by the Engineer prior to beginning construction operations within those areas being modified. All approved changes shall be shared electronically with both the Department and the Contractor, and both parties shall acknowledge acceptance of such changes before beginning the work. When proposed digital terrain model (or surfaces), alignments or graphics are not provided by the Department, the Contractor may choose to develop their own terrain model surfaces from the contract plans to facilitate their use of Automated Machine Guidance, at no additional cost to the State. A request by the Contractor to use Automated Machine Guidance shall be made as part of the Contract Control Plan. The Contractor developed terrain model surfaces shall be shared with the Engineer in a Department accepted format prior to beginning construction operations. Generation of proposed terrain model surfaces or other electronic engineering data does not constitute a redesign of the project, and the Contractor retains all responsibility to complete the work in accordance with the engineering intent conveyed in the contract documents unless otherwise agreed to in writing by the Engineer.
625-3.02 Survey Operations. All Survey Operations shall follow either Traditional Survey Stakeout or
Automated Stakeout and Automated Machine Guidance Operations, or a combination of both, for the establishment, positioning, equipment guidance or verification of construction items. The proposed method shall be approved by the Engineer as part of the Contract Control Plan prior to beginning any field construction operations. Both methods include the same basic requirements that: (1) both parties (Contractor and Department) utilize the same contract control, the same existing terrain data, and the same proposed feature data; (2) both parties utilize the same accuracy and tolerance limits; and (3) both parties utilize equivalent survey verification techniques to ensure that field features are constructed as proposed. The Contractor shall establish the center line of bearings for all bridge abutments and piers, by setting offset hubs or reference points, so located and protected to ensure they remain undisturbed until such time as they are no longer needed. The Contractor shall mark the location of anchor bolts to be installed, establish the elevation of bearing surfaces and check bearing plates to ensure installation at their proper elevation. Before the erection of structural steel or concrete beams the Contractor shall verify the locations, both vertically and horizontally, of all bearings and the distances between associated bearings. Control used to establish center line of bearings shall be included in the contract control plan. On contracts which include proposed and existing roadway alignments and profiles, the Contractor shall verify the roadway tie-in locations of where existing and proposed alignments meet prior to beginning construction operations and report the results to the Engineer. This requirement is intended to
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A.Contract Control Plan. The Contractor shall develop and submit a Contract Control Plan for all contracts which include the contract pay item for Survey Operations. Contract control includes all statewide or local primary and secondary horizontal and vertical control which will be used for the geospatial positioning of work items. Upon the Contractor’s completion of initial survey reconnaissance and control verification, but prior to beginning primary field operations, the Contractor shall submit a Contract Control Plan document which is to be signed and sealed by a Land Surveyor or Professional Engineer in accordance with §625-3.01.A Professional Responsibilities, for acceptance by the Engineer. The Contract Control Plan shall include the below listed required control information and follow the acceptance procedure. All revisions or additions to contract control for the purpose of stakeout or layout of proposed work items shall be provided in writing to the Engineer prior to beginning that revised portion of stakeout or layout work.
1.Acceptance Procedure.
a.The Contractor shall document required information and submit electronically to the Engineer at least 10 work days prior to beginning field operations.
b.The Engineer will coordinate review with the Regional Land Surveyor and provide comments.
c.Upon acceptance of the procedure by the Engineer, the Contractor shall submit 2 signed and sealed copies to the Engineer.
2.Control Information.The Contractor shall list the following control information (tabular format is acceptable):
a.All contract control shown in the contract documents or in the Survey Control Report. Note: The NYS CORS Network provides primary control for most Department contracts.
b.The following elements shall be submitted for all contract control points or benchmarks:
1.Recovered in the field and did it appear undisturbed?
2.Contract indicated coordinate or elevation.
3.Field determined coordinate or elevation.
4.Contractor adjusted coordinate or elevation, if necessary.
5.Point or benchmark intended to be used for construction purposes.
c.Adjustment method is used to balance or adjust the control (ex: Compass Rule for Baseline or Calibration Report for GPS, etc). Attach a copy of the adjustment/calibration report.
d.Control network diagram (drawn to a legible scale) with roadways indicated.
e.New York State Plane Coordinate System (NYSPCS) Zone utilized.
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f.Horizontal Datum used.
g.Vertical Datum used.
h.Combined Factor used to account for the ellipsoidal reduction factor and the grid scale factor.
i.Additional (new) control is anticipated to be needed and where will they be set?
j.When a GPS base station(s) is utilized on a project either for inspection or stakeout, provide the determined coordinate and elevation value of the station, and the datum differential from that localized value to a NYS CORS determined value.
3.Methods or Procedures. The Contractor shall document and provide the following survey information on methods or procedures to be used:
a.Survey method used to verify the control (ex: Total Station, GPS/RTK, Auto Level, etc).
b.Survey method(s) used to stakeout which types of proposed features.
c.Survey method(s) used to stakeout proposed ROW Markers.
d.Survey method used for stakeout of proposed bridge structures (if applicable). How will control be set up and maintained around the bridge(s)?
e.Proposed manufacturer, model and software version for GPS Inspection Units.
f.Automated Machine Guidance (AMG) proposed for use on this contract.
g.Type and frequency of quality control measures included to maintain the proper calibration and adjustment of the AMG systems.
h.If GPS will be used for stakeout or for AMG, will the NYS CORS Network be used as its reference network or will base station(s) be used?
i.If a base station is to be used, describe the mounting location, attachment technique, and instrumental protection included which ensures a sound and reliable reference station will be provided.
B.Traditional Survey Stakeout. The Contractor shall field locate all features to be constructed from survey control points which are identified in the Contract Control Plan. Any error, apparent discrepancy or absence in the data shown or required to appropriately accomplish the stakeout survey shall be referred to the Engineer immediately for interpretation when such is observed or required. The Contractor shall place two offset stakes or references points along the center line at maximum intervals of 50 feet and at such intermediate locations as required to determine location and direction. From computations and measurements made by the Contractor, these stakes shall be clearly and legibly marked with the center line station number, offset and cut or fill from which the establishment of the centerline location and elevation can be determined. If markings become illegible for any reason the markings shall be restored by the Contractor. The Contractor shall locate and place all cut, fill, slope, fine grade, or other stakes and points for the proper progress of the work with a maximum station spacing of 50 feet. All control points shall be properly protected and flagged for easy identification.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 The Contractor shall be responsible for the accuracy of the work and shall maintain all applicable reference points, stakes, etc. Damaged or destroyed reference points or bench marks made inaccessible by the progress of the construction shall be replaced or transferred by the Contractor. All control points shall be referenced by ties (4 minimum) to specific points on acceptable objects and recorded. Any alterations or revisions in the ties shall be so noted and the information furnished to the Engineer. All stakeout survey work related to highway control shall be referenced to the control line (or survey baseline) shown in the contract documents. Computations and survey notes necessary to establish the position of the work from control points, shall be made and maintained in a neat, legible and acceptable format by the Contractor. Computations, survey notes and other survey information shall be made available to the Engineer within 3 work days from the request. The Engineer may check all or any portion of the stakeout survey work or notes made by the Contractor. Such checking by the Engineer shall not relieve the Contractor of any responsibilities for the accuracy or completeness of the work.
C.Automated Stakeout and Automated Machine Guidance Operations. Should the Contractor choose automated methods for the establishment, layout, measurement, equipment guidance or verification of work to be constructed, they shall submit their proposed automated methods including quality control measures as part of their contract control plan for acceptance by the Engineer. When utilizing these methods, all horizontal and vertical survey control, roadway alignment control, existing terrain data and proposed design engineering data shall be shared/exchanged electronically and kept current between the Contractor and the Engineer. All original version files of electronic contract data shall be maintained and stored by the Department. Prior to beginning field operations, the Contractor and Engineer shall mutually determine acceptable uses of and procedures for the technology being used, and how data can be exchanged for use in stakeout, automated machine operations, positional verification, quantity measurements and calculations. All record copies of engineering data shall be stored and shared in Department accepted standard formats, and shall be derived primarily from the original electronic data, when provided by the Department. Automated survey operations have a high reliance on accurate control networks from which to make measurements, establish positions, and verify geospatial locations of features. Therefore, a strong contract control network in the field which is consistent with the project control used during the design of the contract is essential to the successful use of these technologies with the proposed digital terrain model and alignments. Consistent and well designed site calibration (localization) for all automated machine guidance, as described above under Contract Control Plan, is required to ensure the quality of the contract deliverables. The Contract Control Plan is intended to document which local horizontal and vertical control will be will be used for calibration during construction operations and how that calibration or adjustment will be maintained along the entire contract length. Continued incorporation of NYS CORS Network is essential to maintaining the integrity of positional locations and elevations of features. The Engineer may perform quality assurance verifications of feature positions at any time during the contract. Dimensional tolerances shall hold a higher order of precedence than positional tolerances, but both may require verification. Quality assurance activities by the Engineer will not relieve the Contractor of any responsibilities for the quality control of the accuracy or completeness of the work. The Department’s verification of the positional locations of features, calculation and merging of supplemental terrain data surfaces, and the measurement and calculation for quantity payments will be performed using Department standard software. Both the Contractor and the Department shall utilize the following standards: (1) All terrain data collected for the purpose of being used for or merged with Department provided terrain data for the calculation of pay quantities shall be delivered in a format and correctly display in accordance with the current Departmental CADD Standards. (2) The Department will maintain record copies of electronic data files which will be available to the Contractor using the Department’s designated file management system or other method. This will
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 ensure that both parties utilize the same credible data from which to establish locations and measure quantities. The Department will provide all available CADD resource files for use by the Contractor. The Contractor may choose to introduce an additional new automated survey method or technology which involves a new technique for positioning features, measuring quantities, or verifying constructed locations. The quality and accuracy of this data produced by this method shall be demonstrated to the Engineer, for acceptance, by a comparison of this method to previously accepted techniques over a mutually agreed upon portion of the work. The new technology shall meet or exceed the quality and accuracy results provided by previously accepted techniques, and the Engineer shall make the final determination as to the acceptability of its use based on the resulting performance, cost savings, safety and effectiveness of the operation. Previous uses of this same method on other contracts or by other contractors are not acceptable evidence of a technology’s viability, due to inherent variations in operator’s experience levels, data availability, changing field conditions and differing technologies.
625-3.03 Right of Way Markers. The Contractor shall verify with the Engineer that it has the most
current vested Right of Way Acquisition Maps to determine the geospatial positions of all proposed right of way markers. Right of way markers are indicated in the contract for approximate locations and quantities, and shall not be positioned according to the contract information, but rather by the positions shown for the equivalent points on the ROW Maps. Right of way marker locations shall be determined under the direction of a Land Surveyor from a closed traverse or GPS network which is included in the contract control plan and in accordance with Federal Geographic Data Committee (FGCC) C2-II, Second-Order, Class II (1 part in 20,000) accuracy, ensuring a local accuracy of 0.065 ft as described in the Department’s Land Surveying Standards and Procedures Manual. The Contractor shall install right of way markers at the station/offset positions specified on the vested Right of Way Acquisition Maps in accordance with the Standard Sheets to within an absolute positional tolerance of 0.065 ft relative to the primary project control network. The Land Surveyor shall certify the as-built location of each installed right of way marker on certification forms provided by the Engineer, including contract information, and control line station and offset (proposed and as-built) to the marker. The record location of all right of way markers shall be recorded to the nearest 0.01 ft and reflect as-built coordinates from a closed traverse or GPS network which is included in the contract control plan and in accordance with FGCC C2-II, Second-Order, Class II (1 part in 20,000) accuracy. Prior to placing the cap on a steel pin right of way marker, the cap shall be filled 2/3 full of silicone sealant and then fastened to the bar by threading or by force fit. During the driving operation for the steel pin right of way marker, the lettering on the cap shall be protected by the use of a metal sleeve or cushion block. The marker shall be driven so that the cap is flush with the ground surface.
625-3.04 Permanent Survey Markers . The Contractor shall install permanent survey markers in
accordance with the standard sheet at locations described in the contract documents and approved by the Engineer prior to installation. The Engineer will provide the Contractor with the sequential numbering required on the permanent survey marker caps in coordination with the Regional Land Surveyor. When precast permanent survey markers are used, one of the following special excavation and backfill methods shall be used to insure stability. Within undisturbed areas, Method A or Method B may be used. Within disturbed areas, only Method B shall be used.
A.Method A. The excavation shall allow a minimum clearance of 6 inches around the precast permanent survey marker to be backfilled with concrete that meets the appropriate mix design requirements specified in Table 2 of MP 501-2. For backfill purposes, small construction mixers will be permitted.
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B.Method B. The excavation shall allow a minimum clearance around the precast unit compatible with the compaction equipment used. The clear area shall be backfilled with Select Granular Fill in accordance with §203-2.06 Select Granular Fill, and compacted in accordan ce with §203-3.06 Select Granular Fill. The Contractor shall provide the as -built location of each installed permanent survey marker on certification forms provided by the Engineer, including contract information, as -built NYSPCS values, control line and centerline station and offset to the marker, distance and direction to adjacent markers, the elevation of the marker, and a sketch which shows the relative positions to the control line points, four physical ties to the markers, and a north arrow. The certification form shall be sealed and signed by a licensed Land Surveyor. The record location of all permanent survey markers shall be recorded to the nearest 0.01 ft and reflect as-built coordinates from a closed traverse or GPS network which is included in the contract control plan and in accordan ce with FGCC C2 -II, Second-Order, Class II (1 part in 20,000) accuracy as described in the Department’s “Land Surveying Standards and Procedures Manual.”
625-3.05 Supplemental Site Survey. The Contractor shall perform supplemental site survey work in
accordance with §625-3.01 General and §6253.02. Survey Operations. The limits of the survey and mapping and the need for property line or right of way determination shall be as described in the Special Note entitled Supplemental Site Survey Requirements. Changes to the contract established limits by the Engineer shall be considered changes to the scope of work. The work shall include:
A.The Engineer shall determine what level of detailed information may need to be added to the Contract Control Plan for a supplemental site survey. Significant additional requirements will be considered extra work.
B.For new locations, a minimum of 3 inter-visible horizontal control points and 2 benchmarks shall be set at each site.
C.All survey control and terrain data collection shall be performed in accordance with the standards and procedures required in the Department’s Land Surveying Standards and Procedures Manual.
D.Survey shall include all readily identifiable surface and subsurface utilities, including, but not limited to drainage, sanitary, water supply, gas, electric and telephone. The Contractor shall contact the appropriate one call center to identify all underground utilities so they can be marked in the field at each site prior to survey.
E.If property or right of way markers are found inside of or within 30 ft of the survey limits, they shall be located and described as part of the survey.
F.For traffic signal intersection work, elevations of above-ground utilities at the poles and at sag points shall be provided for primary and secondary electric lines, telephone lines and cable television lines. Utility poles shall be identified, including pole numbers. The next pole by number, and next manhole or valve. Sign inventory shall include only a type designation (e.g. stop sign, no parking sign, etc.) without MUTCD code, or a brief description of a private sign.
G.For underground utility surveys, the horizontal positions and vertical elevations of all exposed public and private utilities within the described limits shall be located, mapped and appropriately identified by the Contractor according to the utility’s identification. Horizontal positions and vertical elevations shall be determined from project control to within 2 inches of its absolute location. Linear utilities shall be located at all bend or angle points, junctions or termini, and at a spacing of no more than 50 feet.
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H.Copies of original survey field data, tie diagrams, and control diagrams shall be provided in Department accepted formats.
I.All terrain mapping deliverables (DGN & DTM) shall conform to the requirements included in Chapter 20 and 22 of the Department’s Highway Design Manual.
J.File naming convention shall conform to standards listed in Appendix 14 of the Department’s Project Development Manual.
625-3.06 GPS Inspection Units. The Contractor shall furnish, configure, install, maintain and remove the
GPS units, and provide the Engineer and/or their representatives with training on the operation of the GPS units. The Contractor shall ensure all GPS units are fully operational and training has been provided before construction begins. All projects shall utilize the NYS CORS as the spatial reference datum network from which RTK corrections are derived. The Contractor shall choose which communication technique and devices will be used which will insure the consistent and reliable delivery of RTK correctional data from the NYS CORS to the GPS units. When geographic location or lack of a reliable communications network prohibits the use of the NYS CORS, the Engineer may approve the use of a Survey Grade GPS Inspection unit as a base station in place of the NYS CORS, which will be paid for separately. The Contractor shall semi- permanently mount the base station in a stable and secure location where it shall not be disturbed by construction activities nor be easily damaged by vandalism and where it shall be capable of providing radio signal coverage over the entire contract area. If the base station cannot broadcast a signal that covers the entire site, the Contractor shall provide adequate repeater radios or other communications. A GPS unit installed as a base station for inspection operations shall only be moved with the approval of the Engineer. The GPS units shall be maintained and remain in service until either: (a) a maximum of one week after the Engineer requests its removal in writing, or (b) the State relinquishes the Engineer=s Field Office. The Contractor shall maintain all GPS units and software in good working condition and shall provide replacement due to breakdown, damage, or theft within 2 work days. The Contractor shall retain ownership of all supplied GPS units at the end of the contract.
A.GPS Training Provisions.
1.For all GPS units, the Engineer and/or their representatives shall be provided with a minimum of one 8 hour training session for GPS localization/calibration of the contract site.
2.For all Survey Grade GPS units, the Engineer and/or their representatives shall be provided with a minimum of two separate 8 hour minimum training sessions on the use and operation of the GPS units during the first year of the contract. One of these two sessions shall occur within one week of delivery of GPS units to the site. The second of the two classes shall occur upon the request of the Engineer. One additional 8 hour minimum training session shall be provided during each additional contract year that the GPS units are in service.
3.For all Mapping Grade GPS units, the Engineer and/or their representatives shall be provided with a minimum of one training session during the first year of the contract, being at least 8 hours in length, and to occur within one week of delivery of GPS units to the site. This training shall be separate from the Survey Grade GPS Unit training.
4.All training shall be performed by a manufacturer-verified trainer who is approved by the Engineer. The training shall occur at the Engineer’s Field Office or at a location agreed to by the Engineer.
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625-4 Method of Measurement
625-4.01 General. (Vacant)
625-4.02 Survey Operations. This work will be measured on a lump sum basis.
625-4.03 Right of Way Markers. The quantity to be measured for payment will be the number of right
of way markers installed.
625-4.04 Permanent Survey Markers. The quantity to be measured for payment will be the number of
permanent survey markers installed.
625-4.05 Supplemental Site Survey. This work will be measured on a lump sum basis for each site
location.
625-4.06 GPS Inspection Units. The quantity to be measured for payment will be the number of GPS
Inspection units provided.
625-5 Basis of Payment
625-5.01 General. (Vacant)
625-5.02 Survey Operations. The price bid shall include the cost of furnishing all labor, materials and
equipment necessary to satisfactorily complete the work, including preparation of the contract control plan. Progress payments will be made in proportion to the amount of work completed.
625-5.03 Right of Way Markers. The unit price bid shall include the cost of furnishing all labor,
materials, and equipment necessary to satisfactorily complete the work. Payment will be made after the complete and proper installation of the marker, receipt of the certification form by the Engineer, and after approval of the certification by the Regional Land Surveyor.
625-5.04 Permanent Survey Markers. The unit price bid shall include the cost of furnishing all labor,
materials, and equipment necessary to satisfactorily complete the work. Payment will be made after the complete and proper installation of the marker, receipt of the certification form by the Engineer, and after approval of the certification by the Regional Land Surveyor.
625-5.05 Supplemental Site Survey. The price bid shall include the cost of furnishing all labor,
materials and equipment necessary to satisfactorily complete the work. Payment will be made upon the satisfactory submission of the completed and certified mapping deliverables. Substantive additions to the work limits described in the contract will be considered extra work.
625-5.06 GPS Inspection Units. The unit price bid shall include the cost of labor, materials and
equipment necessary to satisfactorily complete the work, including the cost of the required training and necessary maintenance. Payment will be made under: Item No. Item Pay Unit 625.01 Survey Operations Lump Sum 625.03 Concrete Right of Way Markers Type H (High) Each 625.04 Concrete Right of Way Markers Type L (Low) Each 625.05 Steel Pin and Cap Right of Way Markers Each
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 625.06 Permanent Survey Markers Each 625.07nnnn Supplemental Site Survey Lump Sum 625.11nnnn Survey Grade GPS Inspection Unit Each 625.12nnnn Mapping Grade GPS Inspection Unit Each 625-1 DESCRIPTION
625-1.01 General. Collect survey data in accordance with NYSDOT Land Survey Standards and
Procedures Manual, under the direction of a NYS Licensed Land Surveyor or Professional Engineer, at the locations specified in the Contract Documents and/or as directed by the Engineer. Definitions.
1.COGO: Coordinate Geometry
2.CORS: Continuously Operating Reference Station
3.EED: Electronic Engineering Data
4.EDM: Electronic Distance Measurement
5.GIS: Geographic Information System
6.GLONASS: Globalnaya Navigatsionnaya Sputnikovaya Sistema
7.GNSS: Global Navigation Satellite System
8.GPS: Global Positioning System
9.GUI: Graphical User Interface
10.RTK: Real Time Kinematic
11.RTN: Real Time Network
12.WAAS: Wide Area Augmentation System
625-1.02 Survey Operations. Conduct all necessary survey work to establish, spatially position, and
verify the locations of existing and proposed terrain features and measure quantities of items in accordance with the contract documents and/or as directed by the Engineer. This work includes but is not limited to the establishment, reestablishment and/or localization of primary and secondary control; the retracement, location and/or resetting of existing boundary monuments; the stakeout or layout of proposed features; the initialization, calibration and navigation of automated equipment operations; the location or verification of existing terrain or of constructed features; the verification of geospatial data for proposed construction work; and the coordination and sharing of engineering data with the Department or other contract stakeholders.
625-1.03 Right of Way Markers. Furnish, install and certify right of way markers at the positions
described on the right of way appropriation maps, in accordance with the contract documents and the Standard Sheets.
625-1.04 Permanent Survey Markers. Furnish, install, and certify permanent survey markers at the
positions described in the contract documents and/or as directed by the Engineer, in accordance with the details shown on the Standard Sheets.
625-1.05 Semi-Permanent Base Post. Furnish, install and/or remove a semi-permanent base post and
any additional hardware necessary for easy mounting/dismounting of a local GNSS base station unit at a location shown in the contract documents or as directed by the Engineer. Base posts set under this item are for the sole use of Department staff using Department issued GNSS equipment for efficient setup, breakdown and operation of a local base station.
625-1.06 Supplemental Site Survey. Provide all field survey and terrain maps necessary to locate,
spatially position, verify and digitally map the locations of existing terrain or other above or below
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 ground features as described in the contract documents or as directed by the Engineer. The limits of this supplemental survey will be described in the contract documents.
625-1.07 GNSS Inspection Units. Furnish, configure, install, maintain and/or remove GNSS
units or GNSS RTK Bridge Devices as needed for use by the Engineer and their inspection staff. Provide training to the Engineer and their representatives, on the use of the GNSS units provided.
625-1.08 Robotic Imaging Total Station Inspection Units. Furnish, configure, install,
maintain and/or remove robotic imaging total station units as needed for use by the Engineer and their inspection staff. Provide training to the Engineer and their representatives on the use of the total station units provided.
625-2 Materials
625-2.01 General.
Concrete Grouting Material §701-05 Longitudinal Joint Ties §705-14 Epoxy Coated Bar Reinforcement §709-04 Precast Concrete Right-of-Way Markers §712-05 Precast Concrete Permanent Survey Markers §712-24 Cast In Place Portland Cement Concrete. The materials used for concrete shall comply with the material requirements of Section 501 Portland Cement Concrete Production. Required concrete mixes shall be designed in accordance with the appropriate requirements specified in Table 2 of Materials Procedure (MP) 501-2 Mix Design and Approval Procedure for Performance Engineered Mixtures - Structural Concrete.
625-2.02 Survey Operations. None specified.
625-2.03 Right of Way Markers.
A.Concrete Right of Way (ROW) Markers. Conforming to §712-05 Precast Concrete Right- of-Way Markers and the details shown on the Standard Sheet.
B.Steel Pin and Cap Right of Way Markers. Steel Pin and Cap-Type Markers shall be anchored into rock using Concrete Grouting Material meeting the requirements of §701-05 Concrete Grouting Material. Use a commercial grade silicone sealant between the cap and the shank. 1.Steel Pin: • ASTM A615, Grade 300 or Grade 420. • Epoxy coated for its entire length in accordance with §705-14 Longitudinal Joint Ties or §709-04 Epoxy Coated Bar Reinforcement.
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2.Cap: • Aluminum or a corrosion resistant aluminum alloy. • Weigh a minimum of 50 grams and fastened to the shank by means of threading or force fitting.
625-2.04 Permanent Survey Markers. The Contractor has the option to use either:
Precast units meeting the requirements of §712-24 Precast Concrete Permanent Survey Markers. or Cast-In-Place Permanent Survey Markers. Cast-In-Place concrete shall be Performance Engineered Mixture (PEM) Portland Cement Concrete that meets the appropriate mix design requirements specified in Table 2 of Materials Procedure (MP) 501-2 Mix Design and Approval Procedure for Performance Engineered Mixtures – Structural Concrete except that the requirement for inspection facilities, automated batching controls and recordation do not apply. The batching, mixing, and curing methods and the inspection facilities shall meet the approval of the Department.
625-2.05 Semi-Permanent Base Post. Manufactured out of a material (e.g., pressure treated
wood, PVC pipe filled with concrete, etc.) that will experience little to no effects in horizontal or vertical movement due to changes in temperature, pressure or humidity (e.g., warping, linear expansion, etc.) for the duration of the contract. Use concrete meeting the requirements of this specification. Anchoring Hardware: Use an appropriate quantity of threaded hardware for affixing a GNSS antenna, meeting the following requirements: • Corrosion Resistant • Approximately 1/2 inch in length • Industry Standard 5/8-inch diameter • 11 threads per inch (TPI) thread size • Include any additional brackets necessary for holding or supporting any additional equipment related to operation of the local base station.
625-2.06 Supplemental Site Survey. None specified.
625-2.07 GNSS Inspection Units. Each GNSS unit shall include all necessary components,
communication devices, integrated antennae and receiver, survey field controller and/or data collector, cables, software, operating manuals, attachments, and fastening hardware to meet the minimum requirements described below.
A.All GNSS Inspection Units.
1.All GNSS units provided for a single contract shall be of the same manufacturer and same model for their respective type (i.e., Survey Grade vs. Mapping Grade); and shall include, and be licensed to operate, the same versions of GNSS planning software, data collection software, navigation software, stakeout software and post processing software. All software provided (including firmware) shall be the most current, stable, production
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2.GNSS units shall include both current, standard USB cable and Bluetooth wireless technology for communication and data transfer.
3.Data shall be capable of being copied onto or from a removable industry standard data storage card (e.g., secure digital (SD) card). Each GNSS unit shall include 2 data storage cards, each with a capacity of 16 GB or greater.
4.Survey Grade GNSS unit survey field controller/data collector field software shall include the ability to import/export industry standard file types consistent with point data, alignment data and surface/terrain data which is in a proprietary or LandXML format; reference and/or import 2D and 3D graphics files which are in DGN, DWG or DXF format; and to import/export industry standard file types consistent with point, line or polygon data, schema files or any other standard GIS related files.
5.Mapping Grade GNSS unit controller/data collector field software may, at the discretion of the Engineer, be limited to the ability to import/export industry standard file types consistent with point, line or polygon data, schema files or any other standard GIS related files, as approved by the Engineer.
6.GNSS units shall have an internal, or modular, rechargeable battery system capable of operating a minimum of 8 hours (may include interchangeable batteries) and shall include one or more compatible battery chargers capable of charging all batteries for the system at one time. GNSS units shall include a hard-shell carry case, and all appropriate operation manuals.
B.Survey Grade GNSS Inspection Units.
1.Rover Smart Antenna. The Survey Grade GNSS Inspection Unit shall meet the following requirements:
a.Be equipped to receive, at a minimum, GPS, GLONASS, Galileo and BeiDou GNSS position data.
b.Include a multi-frequency smart antenna which has the antenna and receiver integrated into one compact unit.
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c.Be capable of achieving the following minimum required kinematic accuracy relative to primary project control: Horizontal: 0.033 ft + 1.0 ppm; Vertical: 0.065 ft + 1.0 ppm.
d.Include an integrated communication device capable of receiving RTK correctional data to satisfy the requirement of using NYSNet RTN or local base station corrections.
e.Include the ability to accurately store a measurement of the pole’s tip location without the pole being plumb (e.g. tilt compensation).
f.Be equipped to receive, and be capable of utilizing, RTK correctional data (current Department approved version) through internet protocol as provided from the NYSDOT CORS network, NYSNet. This shall include all necessary communication devices, data service plans, repeaters and/or other system components to meet the minimum required accuracy and not exceed a 2 second latency at the rover. Whatever configuration is utilized by the Contractor to broadcast the NYSDOT CORS RTN correctional data, the Contractor shall ensure that the RTK data be available at all locations across the entire contract site during all hours of construction and inspection operations. Should the Contractor choose to utilize a local base station, the above requirements regarding connection to NYSNet may be waived, at the discretion of the Engineer. Should the Engineer waive the requirements to connect to NYSNet, the accuracy, connectivity and site coverage requirements shall still apply.
g.Be capable of making measurements in a temperature range of -20°C to 50°C and being stored in a temperature range of -20°C to 70°C.
h.Include an original equipment manufacturer hard shell case designed for the Survey Grade GNSS Inspection Unit.
i.Include all necessary communication and data transfer cables.
j.Include all original hard copy manuals.
2.Rover Survey Field Controller. The Survey Grade GNSS Inspection Unit package shall also include one (1) hand-held, weatherproof survey field controller for each unit included in the contract. The survey field controller shall meet the following minimum requirements, shall be compatible with the Survey Grade GNSS Inspection Unit Rover Smart Antenna and Base Smart Antenna (if applicable), the surveying field software and the surveying office software as approved by the Engineer. All original manuals shall be included for the survey field controller and any associated software. Calculator type units with programmable templates will not be accepted. The survey field controller shall meet or exceed the following additional requirements:
a.Include a sufficient number of removable, rechargeable, Li-Ion batteries to sustain 24-hour operating time.
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b.Be capable of making measurements in a temperature range of -20°C to 60°C and being stored in a temperature range of -40°C to 70°C.
c.Be waterproof against accidental immersion to IP67 Standard.
d.Be certified to the appropriate IEC 68/MIL-STD-810E/BS2011 standards for: Temperature, moisture and immersion, dust and sand, drop test, shock, vibration and altitude.
e.Be shockproof from a drop at 1.2m (MIL_STD-810F, Method 514.5--CAT24).
f.Have a minimum 800 x 480-pixel touchscreen display, though larger screens are preferred.
g.Have a full QWERTY keyboard with separate alpha and numeric keypads.
h.Run on a current version of Windows (CE, Mobile, Windows 10 or 11) operating system.
i.Have a minimum 1GB RAM.
j.Have a minimum 2 GB internal memory plus a minimum 16 GB removable, external, secure digital (SD) or microSD storage device.
k.Have a minimum 1 GHz microprocessor.
l.Include USB, Serial, Bluetooth, Wireless LAN, SD/microSD interfaces.
m.Field Software. Include the manufacturer’s current, stable, production version of the survey field controller software with applications that can perform the following functions at a minimum. Beta versions will not be accepted:
1.Allow the user to program and store multiple configurations (commonly known as user preferences) prior to the actual field measurements. Configurations shall be capable of being stored and recalled in the field.
2.Include the ability to display the number of satellites tracked at any one time.
3.Indicate the accuracy quality of each measurement relative to the strength of signals, and the Geometric Dilution of Precision (GDOP) and/or 1-Dimensional (1D), 2-Dimensional (2D) and 3-Dimensional (3D) coordinate quality (CQ).
4.Measuring and storing points and lines that can be accessible by the software for further manipulation for computations or stakeout. Including the ability to average point measurements.
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5.Stakeout including but not limited to staking points, staking/measuring to a line, staking to a DTM/surface, staking to a combined alignment and surface (road design).
6.COGO functions including but not limited to inversing, computing points, computing lines, curves and offsets.
7.Include the capability to “localize” both the horizontal and vertical control to local project monumentation (also known as calibrate), while utilizing RTK corrections from a reference station or network.
8.Data exchange including but not limited to importing proprietary and industry standard data formats and exporting proprietary and industry standard data formats.
n.Include a carrying case or have an appropriate storage location integrated into the GNSS unit case.
o.Include all necessary communication and data transfer cables.
3.Rover Accessories. The Contractor shall provide the Engineer with the following accessories which are compatible with the Survey Grade GNSS Inspection Unit and survey field controller. The accessories shall be of a type approved by the Engineer. GNSS units set up to operate as a rover shall include:
a.One (1) carbon fiber rover pole capable of being locked at a height of 6.562 feet/2m with foot, tenth and hundredth graduated markings on the outside of the pole for quick grade stake checking.
b.One (1) attachable bipod which is compatible with the rover pole.
c.One (1) survey field controller mounting bracket.
d.One (1) pointed tip.
e.One (1) topo shoe.
f.One (1) multi-bay charger capable of simultaneously charging Survey Grade GNSS Inspection Unit and survey field controller batteries.
g.One (1) single bay charger with car adapter. If the single bay charger is not capable of charging all types of batteries included with the system, one charger for each type of battery shall be included and each shall have a car adapter.
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4.Office Processing Software. The Contractor shall provide the Engineer with one (1) licensed copy of the manufacturer’s current office processing software for each Survey Grade GNSS Inspection Unit included in the contract. The office processing software shall be capable of importing/exporting data (points, 2D/3D lines, alignments, surfaces/terrain models, etc.) to and from the survey field controller and the Department’s current CADD Software; importing, post-processing and adjusting GNSS data; and performing any necessary file conversions to prepare data for efficient use by the survey field controller.
5.Base Smart Antenna. Should the contract documents include one or more Survey Grade GNSS Inspection Units and the Contractor choose to not setup a local base station for their own use and subsequently use by the units provided to the Department for that contract, the Contractor shall provide an additional, compatible smart antenna to operate as a local base station at no additional cost to the State. A GNSS unit setup to operate as a base station shall include all additional cables, power source, hardware, fasteners and/or accessories necessary to install it in a fixed, semi-permanent location and operate it continuously during construction and inspection operations for the duration of the Contract.
a.A GNSS unit setup to operate as a base station shall not be considered a rover unit, and therefore will not require a controller, rover rod, bipod, topo shoe or other accessories identified specifically for a rover unit above.
b.A GNSS unit setup to operate as a base station shall be able to be connected to and operated by the rover survey field controller as necessary to properly configure the base station and monitor its performance.
C.Mapping Grade GNSS Inspection Units.
1.Minimum Required Kinematic Accuracy: less than 1.0 foot in real time, though centimeter level accuracy is preferred.
2.Shall include standard support for the WAAS position correction services.
3.Shall include any hardware, software or standard accessories necessary to achieve the accuracy stated above.
4.Shall meet the approval of the Engineer.
D.GNSS RTK Bridge Device. An RTK bridge device may be necessary should the Engineer choose to utilize Department provided GNSS units that will need to connect to the Contractor’s preferred RTK / RTN configuration for the project.
1.The bridge device shall be capable of receiving RTK correction data from either a Real Time Network, such as NYSNet or any other private RTN or a local base station in one format and sending those corrections out via a radio signal (UHF, 900 MHz, etc.) in a
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2.The bridge device shall have a GUI that is accessible by cable and/or Wi-Fi connection and shall be capable of accessing, modifying and saving system settings as well as storing a minimum of two (2) user configurable profiles. The profiles shall include, at a minimum, the ability to set an IP address for the RTN, the communication port, the mount point, a username, a password and the communication port baud rate.
3.The bridge device shall not be more than 2 years old from the date of manufacturing to the time of delivery. To verify the age of the bridge device, the Contractor shall provide a dated copy of the manufacturer’s receipt for the purchase, lease or rental of the device.
4.The bridge device shall include any cellular service and data plan (if applicable) and all manuals, cables, brackets, accessories and technical support to allow the equipment to function seamlessly for the duration of the contract.
5.The Contractor shall be responsible for proper configuration of the bridge device, including but not limited to adequate communication between the bridge device and the Department provided GNSS units. The Contractor and the Engineer shall coordinate to ensure that all GNSS units are achieving desired accuracies and coverage across the project prior to proceeding with any major construction or inspection operations that will utilize the GNSS units.
6.Any additional repeater radios necessary to extend the range of the bridge device to ensure complete coverage of the project shall be included in this item.
625-2.08 Robotic Imaging Total Station Inspection Units. Each Robotic Imaging Total
Station Inspection Unit shall include all necessary components, communication devices, integrated antennae, survey field controller and/or data collector, cables, software, operating manuals, attachments, and fastening hardware to meet the minimum requirements described below, as approved by the Engineer.
A.The Contractor shall provide the Engineer with the contract quantity number of self- contained, Robotic Imaging Total Stations with or without on-board data collection which meets the following minimum requirements and is fully compatible with the included survey field controller and miscellaneous accessories as noted. Robotic Imaging Total Station units shall not be more than 2 years old from the date of manufacturing to the contract award date. To verify the age of the Robotic Imaging Total Station units, the Contractor shall provide a dated copy of the manufacturer’s receipt(s) for the purchase, lease or rental of the units.
B.Robotic Imaging Total Station. The Robotic Imaging Total Station shall meet the following requirements:
1.Horizontal and Vertical accuracy of 1”
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2.Dual Axis Compensator (1.0" or less Setting Accuracy)
3.Coaxial and Reflectorless EDMs Accuracies:
a.EDM Accuracy: 2mm + 2ppm or less
b.Reflectorless Accuracy: 3mm + 2ppm or less
c.EDM Range: 2500m or greater
d.Reflectorless Range: 500m or greater
4.Motorized, servo driven or some other automated drive method with endless tangent screws.
5.Include a fully automatic prism tracking method.
6.Onboard buttons and display shall, at a minimum, be able to power the instrument on and off, access the instrument’s digital level menu and access the instrument’s settings.
7.Be able to communicate wirelessly with the survey field controller to a minimum distance of 500 feet and shall include all antennae and related appurtenances to do so.
8.Have a telescope magnification of 30x or greater.
9.Be capable of streaming live imagery to the included survey field controller.
10.Be capable of taking and storing remote measurements through interaction with the live imagery on the survey controller screen.
11.Include a tribrach for mounting to a tripod.
12.Include three (3) rechargeable Li-Ion batteries, each with a continuous operating life range of 5-8 hours.
13.Be capable of making measurements in a temperature range of -20°C to 50°C and being stored in a temperature range of -20°C to 70°C.
14.Include an original equipment manufacturer hard shell case designed for the Robotic Imaging Total Station.
15.Include all necessary communication and data transfer cables.
16.Include all original hard copy manuals.
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C.Total Station Survey Field Controller. The Robotic Imaging Total Station package shall also include one (1) hand-held, weatherproof survey field controller. The survey field controller shall meet the following minimum requirements, shall be compatible with the Robotic Imaging Total Station, surveying field software and surveying office software as approved by the Engineer. All original manuals shall be included for the survey field controller and any associated software. Calculator type units with programmable templates will not be accepted.
1.Include a sufficient number of removable, rechargeable, Li-Ion batteries to sustain 24- hour operating time.
2.Be capable of making measurements in a temperature range of -20°C to 60°C and being stored in a temperature range of -40°C to 70°C.
3.Be waterproof against accidental immersion to IP67 Standard.
4.Be certified to the appropriate IEC 68/MIL-STD-810E/BS2011 standards for: Temperature, moisture and immersion, dust and sand, drop test, shock, vibration and altitude.
5.Be shockproof from a drop at 1.2m (MIL_STD-810F, Method 514.5--CAT24).
6.Have a minimum 800 x 480-pixel touchscreen display, though larger screens are preferred.
7.Have a full QWERTY keyboard with separate alpha and numeric keypads.
8.Run on a current version of Windows (CE, Mobile or Windows 10) operating system.
9.Have a minimum 1GB RAM.
10.Have a minimum 2 GB internal memory plus a minimum 16 GB removable, external, secure digital (SD) or microSD storage device.
11.Have a minimum 1 GHz microprocessor.
12.Include USB, Serial, Bluetooth, Wireless LAN, SD/microSD interfaces.
13.Field Software. Include the manufacturer’s current, stable, production version of the survey field controller software with applications that can perform the following functions at a minimum. Beta versions will not be accepted.
a.Station setup including but not limited to known coordinates, point and orientation, resection.
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b.Measuring and storing points and lines that can be accessible by the software for further manipulation for computations or stakeout. Including the ability to average point measurements.
c.Stakeout including but not limited to staking points, staking/measuring to a line, staking to a DTM/surface, staking to a combined alignment and surface (road design).
d.COGO functions including but not limited to inversing, computing points, computing lines and offsets.
e.Data exchange including but not limited to importing proprietary and industry standard data formats, exporting proprietary and industry standard data formats.
14.Include a carrying case or have an appropriate storage location integrated into the Robotic Imaging Total Station unit case.
15.Include all necessary communication and data transfer cables.
D.Total Station Accessories. The Contractor shall provide the Engineer with the following surveying accessories which are compatible with the Robotic Imaging Total Station and survey field controller. The accessories shall be of a type approved by the Engineer.
1.One (1) one-section, carbon-fiber, telescopic type prism pole with 5.0 ft to 8.5 ft range with feet/hundredths and metric graduations on the telescoping portion as well as feet, tenth and hundredth graduations marked on the lower section of the pole for easy grade stake checking, necessary adapters for “direct read” of prism height, locking pin, twist lock type locking mechanism, a pointed tip, a topo boot and a detachable, thumb release bi-pod.
2.One (1) two-section, telescopic type prism pole with 5.2 ft to 11.8 ft range with feet/tenths and metric graduations, necessary adapters for “direct read” of prism height, twist lock type locking mechanism and a pointed tip. The attachable bi-pod and topo boot listed in item “a” of this section shall be interchangeable between the two poles.
3.Two (2) brackets, one for each prism pole listed above, capable of attaching the survey field controller to the prism pole in multiple positions.
4.Traverse Kit. One (1) traverse kit consisting of:
a.Two (2) full size trackable prisms.
b.Two (2) tribrachs with level vials.
c.Two (2) tribrach adapters with optical plummet, 60-second level vial or better, integrated prism holder compatible with supplied tribrachs and calibrated to H.I. of supplied Robotic Imaging Total Station.
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d.Original equipment manufacturer hard shell case(s) designed to securely store and transport above listed traverse kit equipment.
5.One (1) 360° prism (active tracking device preferred but not required).
6.One (1) mini/peanut prism with compatible mini prism pole.
7.Three (3) heavy duty, composite tripods.
8.One (1) multi-bay charger capable of simultaneously charging Robotic Imaging Total Station and survey field controller batteries.
9.One (1) single bay charger with car adapter. If the single bay charger is not capable of charging all types of batteries included with the system, one charger for each type of battery shall be included and each shall have a car adapter.
E.Office Processing Software. One (1) licensed copies of manufacturer’s current office processing software per each Robotic Imaging Total Station included in the contract capable of importing/exporting data (i.e., points, 2D/3D lines, alignments, surfaces/terrain models, etc.) between the survey field controller and Department CADD Software, importing and adjusting traverse data, and performing any necessary file conversions to prepare data for efficient use by the survey field controller.
625-3 Construction Details
625-3.01 General.
A.Pre-surveying Meeting. The Engineer shall conduct a Pre-Surveying Meeting prior to the start of initial survey work for the project. The attendance at this meeting will include, at a minimum, the Engineer, Area Construction Supervisor and/or Regional Construction Survey Coordinator or other designated representative, Contractor’s Survey Manager and/or Site Superintendent and a qualified representative for the surveying subcontractor as applicable. Participants will review all applicable aspects of the 625 Standard Specification requirements including, but not limited to, the following:
1.Review of Standard Specification §105-10.
a.Protecting survey control, existing right-of-way, and property line markers.
b.Recording the location of any such markers to be reset after being disturbed due to construction operations.
2.Review of Contract Control Plan Information.
a.Survey baseline points and benchmarks provided in the contract documents.
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b.ROW and/or Permanent Survey Markers included in the contract.
c.Surveying methods to be used for initial recovery of survey baseline points and benchmarks.
d.Impacts of proposed construction on existing survey baseline points and benchmarks.
1.Setting of new points to replace points that will be impacted by proposed construction.
e.Quality control measures for Automated Stakeout and/or Automated Machine Guidance.
f.Sharing of the Contract Control Plan with all relevant subcontractors.
g.Revisions to Contract Control Plan throughout duration of contract.
3.Review of Survey Operations.
a.Contractor’s responsibilities.
1.Identify tasks not requiring direction of a licensed professional that will be completed by the Prime Contractor and/or other non-survey subcontractors.
2.Discuss responsibilities for performing survey stakeout.
b.Licensed Professional’s (Surveyor or Engineer) responsibilities.
1.Identify tasks to be performed under the direction of a Licensed Land Surveyor or Professional Engineer.
c.Traditional Survey Stakeout.
d.Automated Stakeout without Machine Guidance.
e.Automated Stakeout with Machine Guidance.
4.Review of Existing Electronic Engineered Data.
a.Time frames for checking original ground in relation to construction operations.
b.Checking tie-in of proposed alignment/profile to existing.
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c.Checking existing alignment/profile, cross-slopes, etc. to be restored at project completion.
5.Review of Proposed Electronic Engineered Data.
a.Review against contract documents.
6.Review Department Accepted File Formats.
7.Review File Sharing and Storage Methods.
8.Review GNSS Inspection Units.
9.Review Robotic Imaging Total Station Inspection Units.
10.Review Semi-permanent Base Posts.
11.Review the Demonstration of New Technologies and/or Methods for Approval.
B.Professional Responsibilities.
1.The following types of Survey Operations shall be completed by the Contractor under the direction of a Land Surveyor. This requirement is directly or indirectly associated with the professional license requirements contained in Article 145 of the NYS Education Law.
a.Establishment, reestablishment or localization of primary or secondary control which shall be used for:
1.Establishing boundaries of new right of way appropriated for this contract.
2.Location of property or highway boundary markers.
3.Tie measurements to or resetting of control points.
b.Location or resetting of existing highway and property boundary markers from contract control to protect their integrity.
c.Establishment or certification of location of right of way markers and permanent survey markers.
2.The following types of Survey Operations shall be completed by the Contractor under the direction of either a Land Surveyor or Professional Engineer.
a.Establishment, reestablishment or localization of primary or secondary control which shall be used for:
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1.Establishing location for horizontal or vertical roadway alignment.
2.Establishing location for the horizontal or vertical alignment of a structure.
3.Establishing or localizing reference base station for GNSS control work.
b.Establishing new horizontal or vertical roadway alignment in the field from contract control either by conventional stakeout methods or by use of automated equipment operations.
C.Survey/Engineering Geospatial Data. All establishments or reestablishment of contract primary or secondary control, and the survey collection of terrain data shall be performed in accordance with the standards and procedures required in the Department’s Land Surveying Standards and Procedures Manual. The Contractor shall incorporate the NYS CORS network, NYSNet, when using GNSS within the site, in order to facilitate the use of the same datum by other project stakeholders, or to align with other adjacent projects. When the Department provides EED to the Contractor, files will follow the standard file naming conventions listed in Appendix 14 of the Department’s Project Development Manual. Files being provided from the Contractor back to the Department shall follow the same file naming conventions and shall be in a Department accepted format.
1.Existing Terrain Data. When EED (Digital Terrain Model, 2D and 3D base mapping line work, etc.) was developed during design and provided for construction purposes, and possibly updated during construction by supplemental survey, the Department will use that information as a basis from which to develop contract pay item quantities. The Contractor shall consider all existing terrain data supplied by the Department as being within tolerances listed in the Department’s Highway Design Manual (HDM) Chapter 21, Exhibit 21-2 Average Terrain Data Accuracies, except where changes or additions have been approved by the Engineer. If the Contractor questions the accuracy of the existing terrain data provided, the Contractor may verify any or all portion(s) of the existing terrain model, at no additional cost to the State, in accordance with §105-10 Survey and Stakeout. All exceptions or discrepancies found with the supplied existing terrain data shall be brought to the attention of the Engineer, in writing. The Department will be given five (5) business days to verify and agree or disagree. Any terrain data modifications shall be mutually agreed upon and shared with both parties prior to beginning construction operations within those areas being modified. Changes to existing terrain data will not be accepted by the Department where existing terrain is verified to be within Departmental accepted positional tolerances in accordance with the Department’s Land Surveying Standards and Procedures Manual. Changes to existing terrain data will not be accepted by the Department after the Contractor has disturbed the existing ground surface except in special situations where the ground is disturbed due to a separately paid operation (e.g., building demolition and disposal, etc.), as approved by the Engineer.
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2.Proposed Data. When proposed EED (Digital Terrain Models or surfaces, proposed alignments, 2D and 3D lines or objects, etc.) were developed during design and provided for use during construction, or revised during construction due to site changes or redesign, the Department will use that information from which to position and compute applicable contract pay item quantities and to field verify positional locations of constructed items. When the Contractor and Department agree to utilize EED, provided as supplemental information to the contract documents for everyone’s convenience, the Contractor shall first review the EED for inconsistencies with all other contract information in accordance with §102-02 Examining the Contract Documents and the Work Site, prior to using the data in the field for any construction purpose. All exceptions or discrepancies with the supplied data shall be brought to the attention of the Engineer, in writing, and modifications to the EED shall be approved by the Engineer prior to beginning construction operations within those areas being modified. All approved changes shall be shared electronically with both the Department and the Contractor, and both parties shall acknowledge acceptance of such changes before beginning the work. Any work resulting from a failure to review EED against the contract documents or is otherwise subject to rejection under §105-04 Reasonably Close Conformity with Contract Documents due to survey operations errors shall be remedied by the Contractor at no additional cost to the State. When EED is not provided by the Department, the Contractor may choose to develop their own EED from the contract plans to facilitate their use of Automated Stakeout or Automated Machine Guidance, at no additional cost to the State. The Contractor developed EED shall be shared with the Engineer in a Department accepted format a minimum of ten (10) business days prior to beginning construction operations that will utilize such data. Generation EED does not constitute a redesign of the project, and the Contractor retains all responsibility to complete the work in accordance with the engineering intent conveyed in the contract documents unless otherwise agreed to in writing by the Engineer.
625-3.02 Survey Operations. All Survey Operations shall follow either Traditional Survey
Stakeout or Automated Stakeout with or without Automated Machine Guidance Operations, or any combination thereof, for the establishment, positioning, equipment guidance or verification of construction items. These methods are primarily defined by how the Contractor will be performing the contracted work based on the stakeout information and not necessarily the method employed to perform the stakeout itself. The proposed method, especially the intention to utilize Automated Machine Guidance, shall be approved by the Engineer as part of the Contract Control Plan, prior to the beginning of field construction operations pertaining to that method and shall be discussed during the Pre-Survey Meeting. All methods include the same basic requirements that: (1) both parties (Contractor and Department) utilize the same contract control, the same existing information, including EED, and the same proposed information, including EED; (2) both parties utilize the same accuracy and tolerance limits; and (3) both parties utilize equivalent survey verification techniques to ensure that field features are constructed as proposed. The Contractor shall perform an analysis of the original survey baseline points and benchmarks against the proposed design and determine which points may be disturbed or destroyed by construction activities. New points that provide a similar vantage point or benefit to the
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 Department and Contractor shall be established and included in the Contract Control Plan and site calibration as appropriate. New points shall be set in accordance with the standards and procedures required in the Department’s Land Surveying Standards and Procedures Manual. The Contractor shall establish the center line of bearings for all bridge abutments and piers, by setting offset hubs or reference points, so located and protected to ensure they remain undisturbed until such time as they are no longer needed. The Contractor shall mark the location of anchor bolts to be installed, establish the elevation of bearing surfaces and check bearing plates to ensure installation at their proper elevation. Before the erection of structural steel or concrete beams the Contractor shall verify the locations, both vertically and horizontally, of all bearings and the distances between associated bearings. Control used to establish center line of bearings shall be included in the Contract Control Plan. On contracts which include proposed and existing roadway alignments and profiles, the Contractor shall verify the roadway tie-in locations of where existing and proposed alignment and/or profiles meet prior to beginning construction operations and report the results to the Engineer. This requirement is intended to verify that no changes have occurred to the existing roadway and that the proposed design is buildable as detailed in the contract documents. On contracts which include an existing roadway alignment and profile, to be restored at the completion of work, the Contractor shall, at a minimum, verify the roadway alignment, profile and cross slopes for the proposed area of disturbance and provide a record of the existing conditions to the Engineer. Survey operations may be accomplished by utilizing conventional, terrestrial methods (e.g. total station, digital, automatic or laser level, etc.) or by utilizing space-based methods (e.g. GNSS) as appropriate and approved for the respective construction operation. Each of these methods has a certain amount of reliance on stable, ground survey control. Conventional, terrestrial methods have a strict reliance on individual (benchmarks) or pairs (survey baseline) of ground survey control points. Any work resulting from ground survey control requires that the survey control remain in good condition for checking and/or resetting of reference points. Every effort should be made to protect and keep any such control points intact and in good condition for the duration of the project or that new points be set, and accuracy confirmed prior to the original points being disturbed or destroyed. Space-based methods have a similar reliance on the ground survey control, especially when a site has been or will be calibrated or localized. In this case, the reliance is on the network as a whole and not so much one or two individual points. Starting with and maintaining a high-accuracy ground control network is essential to a reliable calibration. Every effort should be made to protect and keep any such control points that are included in an initial calibration control network intact and in good condition for the duration of the project or that new points be set, and accuracy confirmed prior to the original points being disturbed or destroyed. Periodic quality control checks into these control network points should be completed as a best practice to confirm the base station point has not been disturbed and that the calibration remains reliable. As a best practice, the Department recommends the following process when preparing a ground control network for a GNSS calibration: GNSS Site Calibration Best Practice Recommendations. Horizontal Check and Adjust. Perform high accuracy horizontal measurements and any necessary adjustment of the ground survey control points (e.g., closed loop traverse with a total station). Vertical Check and Adjust. Perform high accuracy elevation measurements and any necessary adjustment of the same ground survey control points in step 1 above (e.g., differential level run). GNSS Field Measurements. Perform GNSS calibration field measurements by occupying each point from steps 1 and 2 above at least twice. Each occupation should be separated by enough time that
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A.Contract Control Plan. The Contractor shall develop and submit a Contract Control Plan for all contracts which include the contract pay item for Survey Operations. Contract control includes all statewide or local primary and secondary horizontal and vertical control which will be used for the geospatial positioning of work items. Upon the Contractor’s completion of initial survey reconnaissance and control verification, but prior to beginning construction operations, the Contractor shall submit a Contract Control Plan document which is to be signed and sealed, in whole or in part, by one or more Land Surveyor or Professional Engineer in accordance with §625-3.01A Professional Responsibilities, for acceptance by the Engineer. Should the Contractor submit the Contract Control Plan in parts, each portion signed and sealed by a licensed professional shall be included as its own Attachment. The Contract Control Plan shall include the required control information listed below and follow the acceptance procedure. All revisions to the Contract Control Plan shall be provided in writing to the Engineer prior to beginning that revised portion of stakeout or layout work.
1.Acceptance Procedure.
a.The Contractor shall document required information and submit electronically to the Engineer at least ten (10) business days prior to beginning construction operations.
b.The Engineer will coordinate review of the submitted Contract Control Plan with the Regional Land Surveyor, at a minimum, and provide comments back to the Contractor.
c.Upon acceptance of the procedure by the Engineer, the Contractor shall submit 2 signed and sealed copies to the Engineer.
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2.Control Information. The Contractor shall list the following control information (tabular format is acceptable), which information shall be included in a portion signed and sealed by a licensed professional:
a.All contract control shown in the contract documents or in the Survey Control Report. Note: The NYS CORS Network, NYSNet, provides primary control for most Department contracts.
b.The following elements shall be submitted for all contract control points or benchmarks:
1.Recovered in the field and did it appear undisturbed?
2.Contract indicated coordinate or elevation.
3.Field determined coordinate or elevation.
4.Contractor adjusted coordinate or elevation, if necessary.
5.Point or benchmark intended to be used for construction purposes.
c.Adjustment method if used to balance or adjust the control (e.g., Compass Rule for Baseline or Calibration Report for GNSS, etc.). Attach a copy of the adjustment/calibration report.
d.Control network diagram (drawn to a legible scale) with roadways indicated.
e.New York State Plane Coordinate System (NYSPCS) Zone utilized.
f.Horizontal Datum (epoch) used.
g.Vertical Datum used (include geoid for GNSS).
h.Combined Factor used to account for the ellipsoidal reduction factor and the grid scale factor.
i.Did your analysis of existing survey control against areas of disturbance identify a need for additional control? If so, what are their point names and where are they set?
j.When one or more GNSS base station mount or ground point will be utilized on a project either for inspection or stakeout, provide the determined coordinate and elevation value of the station point, and the datum differential from that localized value to a NYSNet determined value.
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3.Methods or Procedures. The Contractor shall document and provide the following survey information on methods or procedures to be used. Items in sub-sections a-c below shall be included, at a minimum, in the portion signed and sealed by the same licensed professional submitting §625-3.02.A.2 Control Information. Items in section f below shall also be signed and sealed by a licensed professional, but shall be submitted as a separate Attachment if different from those signing and sealing other sections:
a.Survey method(s) and specific equipment used to verify the control (e.g., Total Station, GNSS/RTK, Digital Level, Automatic Level, etc. and make and model of equipment).
b.Survey method(s).
1.For stakeout of proposed project features (e.g., roadway, drainage, sidewalks, etc.).
2.For stakeout of proposed bridge structures.
3.For stakeout of ROW Markers.
4.Related to any other construction operations not identified above.
c.Type and frequency of quality control measures to:
1.Maintain the proper accuracy of the project ground survey control.
2.Maintain calibration and adjustment when using GNSS and a local base station.
d.If RTK GNSS will be used for stakeout:
1.Will NYSNet be used as the reference network?
2.If no to NYSNet, will a different, private, RTN be used? If yes, please specify.
3.If no to NYSNet or other RTN, will one or more local base stations be used?
4.If one or more local base stations are to be used, for each base station, describe the mounting location, attachment technique, and instrumental protection included which ensures a sound and reliable reference station will be in place for the duration of the project.
e.Proposed manufacturer, model and software version for GNSS Inspection Unit equipment.
f.Proposed manufacturer, model and software version for Robotic Imaging Total Station Inspection Unit equipment.
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g.If Automated Machine Guidance (AMG) is being proposed for use on the contract, please provide the following information for each machine using AMG:
1.What guidance method(s) will be used by the machine (e.g., GNSS, total station, etc.)?
2.Provide make and model of machine and AMG system primary components for the guidance system that will be used.
3.What is the most recent date the AMG system was calibrated or adjusted to manufacturer specifications?
4.What type and frequency of quality control measures will be incorporated to maintain the proper calibration, adjustment and accuracy of the AMG system?
5.What construction operations will it be used for?
h.If GPS will be used for stakeout or for AMG, will the NYS CORS Network be used as its reference network or will base station(s) be used?
i.If a base station is to be used, describe the mounting location, attachment technique, and instrumental protection included which ensures a sound and reliable reference station will be provided.
B.Traditional Survey Stakeout. For the purpose of this specification, Traditional Survey Stakeout is defined as utilizing stakes or other semi-permanent materials (i.e. hubs and tacks, nails, etc.) set for the Contractor to reference when positioning, aligning and/or grading for a proposed feature. Due to the reliance on these reference points, stakes or other materials shall be kept in good condition and shall be reset if disturbed or destroyed, until they are no longer necessary for construction of the related features. The Contractor shall field locate all features to be constructed from survey control points which are identified in the Contract Control Plan. Any error, apparent discrepancy or absence of information required to appropriately accomplish the stakeout survey shall be brought to the attention of the Engineer, in writing, for resolution or further coordination as appropriate. For projects that include a proposed alignment and profile, the Contractor shall place two offset stakes or references points along the center line at maximum intervals of 50 feet and at such intermediate locations as required to determine location and direction. These stakes shall be clearly and legibly marked with the center line station number, offset and cut or fill from which to establish of the centerline location and/or elevation. If markings become illegible for any reason the markings shall be restored by the Contractor. The Contractor shall place stakes or other reference points for the proper progress of the work for all cut, fill, slope, fine grade, or other appropriate stages or limits of work with a maximum station spacing of 50 feet and shall include all horizontal and vertical angle points, points of curvature, points of tangent, etc. as necessary or as directed by the Engineer.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 The Contractor shall be responsible for the accuracy of the work and shall maintain all applicable reference points, stakes, etc. Control points, benchmarks or reference points that are damaged, destroyed or are otherwise made inaccessible by the construction operations shall be replaced or transferred by the Contractor. All stakeout survey work related to highway control shall be referenced to the control line (or survey baseline) shown in the contract documents. Computations and survey notes necessary to establish the position of the work from control points, shall be made and maintained in a neat, legible and acceptable format by the Contractor. Computations, survey notes and other survey information shall be made available to the Engineer within 3 business days from the request. The Engineer may check all, or any portion of the stakeout survey work or notes made by the Contractor. Such checking by the Engineer does not relieve the Contractor of any responsibilities for the accuracy or completeness of the work.
C.Automated Stakeout and Automated Machine Guidance Operations. For the purpose of this specification, Automated Stakeout is defined as utilizing EED including but not limited to elevations or slopes, 2D/3D points and/or lines, alignments and profiles or digital terrain models/surfaces in conjunction with GNSS, robotic total stations, laser levels and/or other industry standard technology to guide the Contractor during construction operations in lieu of setting stakes or reference points from which to perform the work. Should the Contractor choose automated methods for the establishment, layout, measurement, equipment guidance or verification of work to be constructed, they shall submit their proposed automated methods including quality control measures as part of the original or an amended Contract Control Plan. When utilizing these methods, all EED (horizontal and vertical survey control, roadway alignment control, existing terrain data and proposed design engineering data, etc.) shall be shared/exchanged electronically and kept current between the Contractor and the Department. All original version files of EED that supplement the contract documents shall be maintained and stored by the Department. During the Pre-surveying Meeting, the Contractor and Engineer shall mutually determine acceptable uses of and procedures for the technology being used, and how data can be exchanged for use in stakeout, AMG operations, positional verification, quantity measurements and calculations. All record copies of EED shall be stored and shared in Department accepted standard formats and shall be derived primarily from the original EED, when provided by the Department. Automated survey operations have a high reliance on accurate control networks from which to make measurements, establish positions, and verify geospatial locations of features. Therefore, a strong contract control network in the field which is consistent with the project control used during the design of the contract is essential to the successful use of these technologies with the proposed digital terrain model and alignments. Consistent and well- designed site calibration (localization) for all automated machine guidance, as described above under Contract Control Plan, is required to ensure the quality of the contract deliverables. The Contract Control Plan is intended to document which local horizontal and vertical control will be used for calibration during construction operations and how that calibration or adjustment will be maintained along the entire contract length. Continued incorporation of NYS CORS Network is essential to maintaining the integrity of positional locations and elevations of features.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 The Engineer may perform quality assurance verifications of feature positions at any time during the contract. Dimensional tolerances shall hold a higher order of precedence than positional tolerances, but both may require verification. Quality assurance activities by the Engineer will not relieve the Contractor of any responsibilities for the quality control of the accuracy or completeness of the work. The Department’s verification of the positional locations of features, calculation and merging of supplemental terrain data surfaces, and the measurement and calculation for quantity payments will be performed using Department standard software. Both the Contractor and the Department shall utilize the following standards: (1) All terrain data collected for the purpose of being used for or merged with Department provided terrain data for the calculation of pay quantities shall be delivered in a format and correctly display in accordance with the current Departmental CADD Standards. (2) The Department will maintain record copies of electronic data files which will be available to the Contractor using the Department’s designated file management system or other method. This will ensure that both parties utilize the same credible data from which to establish locations and measure quantities. The Department will provide all available CADD resource files for use by the Contractor. The Contractor may choose to introduce an additional new automated survey method or technology which involves a new technique for positioning features, measuring quantities, or verifying constructed locations. The quality and accuracy of this data produced by this method shall be demonstrated to the Engineer, for acceptance, by a comparison of this method to previously accepted techniques over a mutually agreed upon portion of the work. The new technology shall meet or exceed the quality and accuracy results provided by previously accepted techniques, and the Engineer shall make the final determination as to the acceptability of its use based on the resulting performance, cost savings, safety and effectiveness of the operation. Previous uses of this same method on other contracts or by other contractors are not acceptable evidence of a technology’s viability, due to inherent variations in operator’s experience levels, data availability, changing field conditions and differing technologies.
625-3.03 Right of Way Markers. The Contractor shall verify with the Engineer that it has the
most current vested Right of Way Acquisition Maps to determine the geospatial positions of all proposed right of way markers. Right of way markers are indicated in the contract for approximate locations and quantities and shall not be positioned according to the contract information, but rather by the positions shown for the equivalent points on the ROW Maps. Right of way marker locations shall be determined under the direction of a Land Surveyor from a closed traverse or GNSS network which is included in the Contract Control Plan and in accordance with Federal Geographic Data Committee (FGCC) C2-II, Second-Order, Class II (1 part in 20,000) accuracy, ensuring a local accuracy of 0.065 ft as described in the Department’s Land Surveying Standards and Procedures Manual. The Contractor shall install right of way markers at the station/offset positions specified on the vested Right of Way Acquisition Maps in accordance with the Standard Sheets to within an absolute positional tolerance of 0.065 ft relative to the primary project control network. The Land Surveyor shall certify the as-built location of each installed right of way marker on certification forms provided by the Engineer, including contract information, and control line station and offset (proposed and as-built) to the marker. The record location of all right of way
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625-3.04 Permanent Survey Markers. The Contractor shall install permanent survey markers
in accordance with the standard sheet at locations described in the contract documents and approved by the Engineer prior to installation. The Engineer will provide the Contractor with the sequential numbering required on the permanent survey marker caps in coordination with the Regional Land Surveyor. When precast permanent survey markers are used, one of the following special excavation and backfill methods shall be used to ensure stability. Within undisturbed areas, Method A or Method B may be used. Within disturbed areas, only Method B shall be used.
A.Method A. The excavation shall allow a minimum clearance of 6 inches around the precast permanent survey marker to be backfilled with concrete that meets the appropriate mix design requirements specified in Table 2 of MP 501-2. For backfill purposes, small construction mixers will be permitted.
B.Method B. The excavation shall allow a minimum clearance around the precast unit compatible with the compaction equipment used. The clear area shall be backfilled with Select Granular Fill in accordance with §203-2.06 Select Granular Fill, and compacted in accordance with §203-3.06 Select Granular Fill. The Contractor shall provide the as-built location of each installed permanent survey marker on certification forms provided by the Engineer, including contract information, as-built NYSPCS values, control line and centerline station and offset to the marker, distance and direction to adjacent markers, the elevation of the marker, and a sketch which shows the relative positions to the control line points, four physical ties to the markers, and a north arrow. The certification form shall be signed and sealed by a licensed Land Surveyor. The record location of all permanent survey markers shall be recorded to the nearest 0.01 ft and reflect as-built coordinates from a closed traverse or GNSS network which is included in the Contract Control Plan and in accordance with FGCC C2-II, Second-Order, Class II (1 part in 20,000) accuracy as described in the Department’s “Land Surveying Standards and Procedures Manual.”
625-3.05 Semi-Permanent Base Post. The Contractor shall install the semi-permanent base
post at the location described in the contract documents, as approved, or as otherwise directed by the Engineer, prior to installation. The location should be free from large, dense obstructions to the sky (e.g. signs, hillsides, dense forests, etc.) and free from electromagnetic interference or distortion (e.g. away from electrical transmission lines, etc.). Any such obstruction should not be above the Department’s recommended cut-off angle as measured from the horizon toward the zenith. The Contractor shall propose to the Engineer, a list of materials and description of the
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 assembled base post configuration including any sketches or schematics, for approval, prior to installation. The post shall be installed such that the top is a minimum 5 feet above the ground and that the base is embedded at least 3 feet into the ground, with the preference being 6 feet above ground and 4 feet of embedment. The post shall be installed plumb. Plumbness shall be checked by using a box level on two sides of the post at locations 90 degrees from each other or other method as approved by the Engineer. The Contractor shall use one of the following special excavation and backfill methods to ensure stability, unless otherwise indicated in the contract documents. Within undisturbed areas, Method A or Method B may be used. Within disturbed areas, only Method B shall be used.
A.Method A. The excavation shall allow a minimum clearance of 1.5 times the largest cross- sectional dimension of the base post, around the base post to be backfilled with concrete that meets the appropriate mix design requirements specified in Table 2 of MP 501-2. For backfill purposes, small construction mixers will be permitted.
B.Method B. The excavation shall allow a minimum clearance around the base post compatible with the compaction equipment used. The clear area shall be backfilled with Select Granular Fill in accordance with §203-2.06 Select Granular Fill and compacted in accordance with §203-3.06 Select Granular Fill, unless onsite material is determined to be suitable backfill, as approved by the Engineer.
625-3.06 Supplemental Site Survey. The Contractor shall perform supplemental site survey
work in accordance with §625-3.01 General and §625‑3.02 Survey Operations. The limits of the survey and mapping and the need for property line or right of way determination shall be as described in the Special Note entitled Supplemental Site Survey Requirements. Changes to the contract established limits by the Engineer shall be considered changes to the scope of work. The work shall include:
A.The Engineer shall determine what level of detailed information may need to be added to the Contract Control Plan for a supplemental site survey. Significant additional requirements will be considered extra work.
B.For new locations, a minimum of 3 inter-visible horizontal control points and 2 benchmarks shall be set at each site.
C.All survey control and terrain data collection shall be performed in accordance with the standards and procedures required in the Department’s Land Surveying Standards and Procedures Manual.
D.Survey shall include all readily identifiable surface and subsurface utilities, including, but not limited to drainage, sanitary, water supply, gas, electric and telephone. The Contractor shall contact the appropriate one call center to identify all underground utilities so they can be marked in the field at each site prior to survey.
E.If property or right of way markers are found inside of or within 50 ft of the survey limits, they shall be located and described as part of the survey.
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F.For traffic signal intersection work, elevations of above-ground utilities at the poles and at sag points shall be provided for primary and secondary electric lines, telephone lines and cable television lines. Utility poles shall be identified, including pole numbers. Utility information shall be extended to the next pole (or poles if leaving in multiple directions), next manhole or valve beyond the survey limits, so as to indicate distance and direction of respective utility. Sign inventory shall include only a type designation (e.g. stop sign, no parking sign, etc.) without MUTCD code, or a brief description of a private sign.
G.For underground utility surveys, the horizontal positions and vertical elevations of all exposed public and private utilities within the described limits shall be located, mapped and appropriately identified by the Contractor according to the utility’s identification. Horizontal positions and vertical elevations shall be determined from project control to within 2 inches of its absolute location. Linear utilities shall be located at all bend or angle points, junctions or termini, and at a spacing of no more than 50 feet.
H.Copies of original survey field data, tie diagrams, and control diagrams shall be provided in Department accepted formats.
I.All terrain mapping deliverables (DGN & DTM) shall conform to the requirements included in Chapter 20 and 22 of the Department’s Highway Design Manual.
J.File naming convention shall conform to standards listed in Appendix 14 of the Department’s Project Development Manual.
625-3.07 GNSS Inspection Units. The Contractor shall furnish, configure, install, maintain and
remove the GNSS units, and provide the Engineer and/or their representatives with training on the operation of the equipment and software included in the GNSS unit package. The Contractor shall ensure all GNSS units, software and accessories are fully adjusted and operational and training has been provided before construction begins. All projects shall utilize the NYS CORS network, NYSNet, as the spatial reference datum network from which RTK corrections are provided but the Contractor may choose to operate a local base station instead. The Contractor shall choose an appropriate communication technique and devices to be used which will ensure the consistent and reliable delivery of RTK correctional data from NYSNet or- the local base station to the GNSS units. The Contractor shall semi- permanently mount the base station in a stable and secure location where it shall not be disturbed by construction activities nor be easily damaged by vandalism and where it shall be capable of providing radio signal coverage over the entire contract area. If the base station cannot broadcast a signal that covers the entire site, the Contractor shall provide adequate repeater radios or other communications. A GNSS unit installed as a base station for inspection operations shall only be moved with the approval of the Engineer. The GNSS units shall be maintained and remain in service until either: (a) a maximum of one week after the Engineer requests its removal in writing, or (b) the State relinquishes the Engineer’s Field Office. The Contractor shall maintain all GNSS units and software in good working condition and shall provide replacement due to breakdown, damage, or theft within 2
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 business days. The Contractor shall retain ownership of all supplied GNSS units at the end of the contract.
A.GNSS Training Provisions.
1.For all GNSS units, the Engineer and/or their representatives shall be provided with a minimum of one (1) 8-hour training session for GNSS localization/calibration of the contract site.
2.For all Survey Grade GNSS units, the Engineer and/or their representatives shall be provided with a minimum of two (2) separate 8-hour minimum training sessions on the use and operation of the GNSS units during the first year of the contract. One of these two sessions shall occur within one (1) week of delivery of GNSS units to the site. The second session shall occur upon the request of the Engineer. One (1) additional training session, consisting of a minimum of 8-hour training, shall be provided during each additional contract year that the GNSS units are in service.
3.For all Mapping Grade GNSS units, the Engineer and/or their representatives shall be provided with a minimum of one training session during the first year of the contract, being at least 8 hours in length, and to occur within one (1) week of delivery of GNSS units to the site. This training shall be separate from the Survey Grade GNSS Unit training.
4.All training shall be performed by a manufacturer-verified trainer who is approved by the Engineer. The training shall occur at the Engineer’s Field Office or at a location agreed to by the Engineer.
625-3.08 Robotic Imaging Total Station Inspection Units. The Contractor shall furnish,
configure, install, maintain and remove the Robotic Imaging Total Station Inspection units, and provide the Engineer and/or their representatives with training on the operation of the Robotic Imaging Total Station units. The Contractor shall ensure all Robotic Imaging Total Station units, software and accessories are fully adjusted and operational and training has been provided before construction begins. The constant evolution of surveying hardware and field software and its impact on modern robotic total station configurations has resulted in improved reliability to repeat measurements with high accuracy and precision. These improvements have led to the adoption of resection methods as an industry standard practice for construction layout and verification. The resection process allows the user to setup the instrument in a relatively random location that is a visual vantage point for the work to be performed, while also being able to see project survey control points. Modern resection routines, when coupled with a strong geometric configuration of highly accurate ground survey control points, allow the user to establish an accurate and precise 3- dimensional (3D) coordinate for the total station position and accurate and precise orientation. This rapid and accurate setup process allows the total station user to save significant time establishing such vantage point and perform stakeout and/or verification work more efficiently with negligible loss in accuracy or precision when compared to traditional total station routines. This method is expected to be the primary method in which the Robotic Imaging Total Station
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 units are to be used by the Engineer and/or their staff. Due to the reliance on stable, accurate baseline points and benchmarks, when one or more Robotic Imaging Total Station units are included in the contract, the Contractor shall ensure that sufficient survey control is established, protected and maintained in good condition for the duration of the project for the efficient use by the Engineer. The Robotic Imaging Total Station units shall be maintained and remain in service until either:
a.a maximum of one week after the Engineer requests its removal in writing, or (b) the State relinquishes the Engineer’s Field Office. The Contractor shall maintain all Robotic Imaging Total Station units, software and accessories in good working condition and shall provide replacement due to breakdown, damage, or theft within 2 business days. The Contractor shall retain ownership of all supplied Robotic Imaging Total Station units at the end of the contract.
A.Robotic Total Station Training Provisions.
1.For all Robotic Imaging Total Station units, the Engineer and/or their representatives shall be provided with a minimum of three (3) separate training sessions, each being a minimum of 8 hours, on the use and operation of the Robotic Imaging Total Station units during the first year of the contract. One of these three sessions shall occur within one week of delivery of Robotic Imaging Total Station units to the site. The second and third session shall occur upon the request of the Engineer. One (1) additional training session, consisting of a minimum of 8 hours of training, shall be provided during each additional contract year that the Robotic Imaging Total Station units are in service.
2.All training shall be performed by a manufacturer-verified trainer who is approved by the Engineer. The training shall occur at the Engineer’s Field Office or at a location agreed to by the Engineer.
625-4 Method of Measurement
625-4.01 General. (Vacant)
625-4.02 Survey Operations. This work will be measured on a lump sum basis.
625-4.03 Right of Way Markers. The quantity to be measured for payment will be the number
of right of way markers installed.
625-4.04 Permanent Survey Markers. The quantity to be measured for payment will be the
number of permanent survey markers installed.
625-4.05 Semi-permanent Base Post. The quantity to be measured for payment will be the
number of semi-permanent base posts installed.
625-4.06 Supplemental Site Survey. This work will be measured on a lump sum basis for
each site location.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3
625-4.07 GNSS Inspection Units. The quantity to be measured for payment will be the
number of GNSS Inspection units provided.
625-4.08 Robotic Imaging Total Station Inspection Units. The quantity to be measured for
payment will be the number of Robotic Imaging Total Station Inspection units provided.
625-5 Basis of Payment
625-5.01 General. (Vacant)
625-5.02 Survey Operations. The price bid shall include the cost of furnishing all labor,
materials and equipment necessary to satisfactorily complete the work, including preparation of the Contract Control Plan. Progress payments will be made in proportion to the amount of work completed.
625-5.03 Right of Way Markers. The unit price bid shall include the cost of furnishing all
labor, materials, and equipment necessary to satisfactorily complete the work. Payment will be made after the complete and proper installation of the marker, receipt of the certification form by the Engineer, and after approval of the certification by the Regional Land Surveyor.
625-5.04 Permanent Survey Markers. The unit price bid shall include the cost of furnishing
all labor, materials, and equipment necessary to satisfactorily complete the work. Payment will be made after the complete and proper installation of the marker, receipt of the certification form by the Engineer, and after approval of the certification by the Regional Land Surveyor.
625-5.05 Semi-permanent Base Post. The unit price bid shall include the cost of furnishing all
labor, materials, and equipment necessary to satisfactorily complete the work. Payment will be made after the complete and proper installation of the base post and acceptance by the Engineer.
625-5.06 Supplemental Site Survey. The price bid shall include the cost of furnishing all
labor, materials and equipment necessary to satisfactorily complete the work. Payment will be made upon the satisfactory submission of the completed and certified mapping deliverables. Substantive additions to the work limits described in the contract will be considered extra work.
625-5.07 GNSS Inspection Units. The unit price bid shall include the cost of labor, materials
and equipment necessary to satisfactorily complete the work, including the cost of the required training and necessary maintenance. The unit bid price will be divided into installments based on the number of estimated months for the contract length. Progress payments will be made based on the calculated installments.
625-5.08 Robotic Imaging Total Station Inspection Units. The unit price bid shall include the
cost of labor, materials and equipment necessary to satisfactorily complete the work, including the cost of the required training and necessary maintenance. The unit bid price will be divided into installments based on the number of estimated months for the contract length. Progress payments will be made based on the calculated installments.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 Payment will be made under: Item No. Item Pay Unit 625.01 Survey Operations Lump Sum 625.03 Concrete Right of Way Markers Type H (High) Each 625.04 Concrete Right of Way Markers Type L (Low) Each 625.05 Steel Pin and Cap Right of Way Markers Each 625.06 Permanent Survey Markers Each 625.07nnnn Supplemental Site Survey Lump Sum 625.13nnnn Survey Grade GNSS Inspection Unit Each 625.14nnnn Mapping Grade GNSS Inspection Unit Each 625.15nnnn Robotic Imaging Total Station Inspection Unit Each 625.16nnnn GNSS RTK Bridge Device Each 625.17nnnn Semi-Permanent Base Post Each SECTIONS 626 THRU 628 (VACANT)
Referenced in this section
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Source: Standard Specifications (US Customary Units), 2026 (Jan) Edition. Pages 833–876 of 1,489. View official source ↗