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Incidental Construction (600-699)

648SUBSURFACE EXPLORATIONS

NY · 2024 Standard SpecificationsBook pages 713720View official source ↗

647-4.10 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 No additional payment will be made for the restoration of surfaces when foundations are removed. Payment for new sign supports, and foundations will be made under separate pay items. Payment will be made under: Item No. Item Pay Unit

647.20 Removal of Cantilever Overhead Sign Panel(s), Structure, and Foundations Each

647.21 Removal of Single Span Overhead Sign Panel(s), Structure, and Foundations Each

647.22 Removal of Multi -Span Overhead Sign Panel(s), Structure, and Foundations Each

647.23 Relocate Overhead Sign Panel, Sign Panel Assembly Each

647.24 Remove and Store Overhead Sign Panel, Sign Panel Assembly Each

647.25 Remove and Dispose Overhead Sign Panel, Sign Panel Assembly Each

647.31 Relocate Sign Panel, Sign Panel Assembly Size I (Under 30 Square Feet) Each

647.32 Relocate Sign Panel, Sign Panel Assembly Size II (30 -100 Square Feet) Each

647.33 Relocate Sign Panel, Sign Panel Assembly Size III (Over 100 Square Feet) Each

647.41 Remove and Store Sign Panel, Sign Panel Assembly Size I (Under 30 Square Feet) Each

647.42 Remove and Store Sign Panel, Sign Panel Assembly Size II (30 -100 Square Feet) Each

647.43 Remove and Store Sign Panel, Sign Panel Assembly Size III (Over 100 Square Feet) Each

647.51 Remove and Dispose Sign Panel, Sign Panel Assembly Size I (Under 30 Square Feet) Each

647.52 Remove and Dispose Sign Panel, Sign Panel Assembly Size II (30 -100 Square Feet) Each

647.53 Remove and Dispose Sign Panel, Sign Panel Assembly Size III (Over 100 Square Feet) Each

647.61 Remove and Dispose Signs, Ground Mounted Type A Sign Supports and Foundations Each

- Size I (Under 30 Square Feet)

647.62 Remove and Dispose Signs, Ground Mounted Type A Sign Supports and Foundations Each

- Size II (30 -100 Square Feet)

647.63 Remove and Dispose Signs, Ground Mounted Type A Sign Supports and Foundations Each

- Size III (Over 100 Square Feet)

647.64 Remove and Dispose High Capacity Type A Ground Mounted Sign Support and Each

Foundation

647.65 Remove and Dispose Type B Ground Mounted Sign Support and Foundation Each

SECTION 648 - SUBSURFACE EXPLORATIONS 648-1 DESCRIPTION. This work shall consist of furnishing equipment, drilling for soil and rock samples, and preparing a driller's log in accordance with these specifications and the direction of the Engineer. 648-2 MATERIALS. Materials for this work shall meet the requirements of the following Subsections of Section 700 - Materials and Manufacturing : Drill Rigs 732-01 Drive Pipe 732-02 Casing 732-03 Samplers 732-04 Thin -Walled Sample Tubes 732-05 Coring Bits 732-06 Sample Storage Bags 732-07 Sample Jars 732-08 Jar Cartons 732-09 Boulder and Rock Core Boxes 732-10 648-3.01 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 Open Well Piezometers 732-11 Grout 732-12 648-3 CONSTRUCTION DETAILS 648-3.01 General. This work shall consist of furnishing equipment, clearing of all drill holes in accordance with New York State Department of Public Service Rule 753, drilling for soil and rock samples, back filling all drill holes to the satisfaction of the Engineer, an d preparing a driller's log in accordance with these specifications. Any proposed variation from the methods and techniques in the specifications shall be submitted in writing by the Contractor to the Engineer who shall forward the proposal to the Directo r of the Geotechnical Engineering Bureau for review. Approval, if granted, will be based on the decision of the Director of the Geotechnical Engineering Bureau as to the capabilities of the proposed variation to provide satisfactory samples and subsurface information. If granted, this approval will remain in force only so long as all conditions set forth in the approval are met and satisfactory results are obtained. In the event unsatisfactory results are obtained, the approval will be withdrawn and all remaining work shall be completed in accordance with this specification. Boring work shall not commence until all equipment stated in the proposal is on the project and approved. In addition, the following shall apply:

A.Furnishing Equipment for Making Borings. The Contractor shall furnish the number of drill rigs, conforming to §732 -01, stated in the proposal or work order, maintain this equipment, and remove it from the site at the time indicated by the Engineer. All equipment shall be acceptable to the Engineer.
B.Driller's Logs. The forms for the driller's logs, Form 282e, will be furnished by the State and shall have the following information legibly printed on them by the Contrac tor: Region County Contractor Name Contract Number Project Identification Number (PIN) Project Name Date Started and Finished Hole Number Weight and Fall of Hammer (Casing) Weight and Fall of Hammer (Sampler) Casing and Sampler Size Inspector Name (Regional Geotechnical Engineer on Log) Structure Name/Number Penetration Records (Blows on Casing, Drive Pipe and Sampler) Sample numbers Groundwater Data Depth at which drill water was first used Depth at which groundwater was first encountered Depth to groundwater at the beginning and end of each day's operation Rock Core Length of Run Percent Recovery Number of Pieces 648-3.02 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 Depth Core Obtained Size of Core Obtained Type of Core Barrel All pertinent remarks and comments The hole designation on the final log and sample containers should reflect the actual method of progressing the hole. Any change in hole designation (due to an alternate hole progression method) shall be forwarded to the Engineer in writing in a timely man ner. Provide all measurements and dimensions in U.S. Customary units on the final log. Ensure that the completed driller's log is signed by the drill rig operator, the drill rig inspector, and the Chief Inspector. Deliver the samples and a copy of the completed driller's log to the location indicated in the Contract documents, between the hours of 8:00 A.M. and 3:00 P.M., within five working days following completion of the hole, except holidays. In addition, deliv er another copy of the completed driller's log to the Departmental Geotechnical Engineer. Submit the original copy of the completed driller's log to the Engineer.
C.Groundwater Determinations. The level at which groundwater is first encountered in the borings shall be noted. Water level readings shall be taken at the end of each day after the last sample has been taken and the sample and rods have been removed. No soil shall be left in the casing at the end of the day. Do not fill the casing with water unless there is a need to compensate for a condition such as running sand. Measure and record the change in water level when resuming work. Capped borings shall be vented. Groundwater levels shall be measured be fore and after the casing or drive pipe is pulled. Each water level reading shall be recorded showing the date and time the reading was made, the depth of the drive pipe or casing, and the depth to water. Any loss or gain of water in the boring, except t hat caused by deliberately introducing water and/or inserting or removing tools, shall be recorded. This record shall show the date and time the loss or gain is noted, the depth of the casing and the depth to water. The height of artesian rise shall be r ecorded. All water level readings and related data shall be recorded on the boring logs under “Remarks”. If necessary, additional forms shall be used for recording groundwater data. Artesian pressures shall be permanently sealed at the elevation at which they were encountered. This seal shall be satisfactory to the Engineer before casing is removed from the hole. 648-3.02 Split Barrel Samples
A.Progressing the Hole. The hole shall be progressed by advancing flush -joint casing, flush - coupled casing, or extra -strength drive pipe by driving or drilling, or where permitted, by a drilling mud process or by using a hollow flight auger. When driven casing is used a 300 -lb ( 3 percent) hammer falling freely 18 inches shall be used. Actuate the hammer by means of a rope and cathead, or by automatic hammer, when casing or drive pipe is driven. Casing refusal shall be considered as 300 blows for less than 12 inches of penetration. When refusal is encountered, the casing shall be cleaned and a sample shall be attempted, if no sample is recovered, coring will commence. Prior to sampling, the drill hole shall be cleaned to the sampling elevation by using equipment that will not disturb the material to be sampled. Bottom discharge bits, including samplers, will not be allowed. A roller bit may be used as a clean out tool if it is of a type that deflects water to the sides rather than downward into the material to be sampled. The Engineer may order a new roller bit at any time he deems the one in use to be unacceptable. “N” size drill rods or larger shall be used in 3 inch or larger inside diameter casing. 648-3.03 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 The Engineer shall be advised of the time of the last sampling operation so he may be present when the hole is measured for payment purposes.
B.Sampling. Samples shall be taken at every change in stratum , but in no case at intervals greater than 5 feet. Continuous sampling may be directed by the Engineer. The sampler shall be placed on the bottom of the cleaned out hole and then driven 18 inches with a 300-lb ( ±3 percent) hammer falling freely 18 inches. Actuate the hammer by means of a rope and cathead, or by automatic hammer. When the Standard Penetration Test (SPT) is required, use equipment and procedures conforming to ASTM D1586 -84, except as mod ified by this specification. The number of blows required to drive the sampler each increment of 6 inches shall be recorded. If refusal is encountered before the desired sample length is attained, and the sampler proves to have no recovery, the sampler shall be removed from the hole and core drilling started; however, if refusal is encountered and the material retained represents the best obtainable sample as determined by the Engineer, the hole may be progressed to the next sample elevation or change in soil strata. Refusal shall be 50 hammer blows for less than 6 inches of penetration for the 300 -lb hammer. When the SPT is used, refusal shall be as defined in ASTM D1586 -84. When a recovery of less than 6 inches of sample in a split barrel sampler is retrieved, the sampler shall be re -driven at the same elevation in an attempt to obtain more material. Only the first set of blows shall be recorded on the boring log, but a note shall be included under “Remarks” indicating that a second sampling attempt was made. The Engineer may direct that a basket or other spring type retainer be used on any or all sampling attempts. Flap or trap valves will only be used when specifically di rected by the Engineer. When sampling material below the water table, the hole shall be kept full of fluid during the removal of tools to prevent flowback, unless otherwise directed by the Engineer. All samples, regardless of the amount of recovery, shall become the property of the State and shall be packaged, transported and delivered in accordance with this specification.
C.Marking, Packaging and Transporting Sample. Samples shall be placed in tied plastic storage bags placed in jars conforming to §732 -08 in such a manner so as to maintain the natural structure of the sample. The jar shall be labeled to show the project name, PIN, sample number, hole number, and the depths from which the sample was taken. Jars shall be placed in cartons conforming to §732 -09. Samples must be protected from freezing or extreme heat. The samples shall be delivered by the Contractor to t he location indicated in the Contract documents between the hours of 8:00 A.M. and 3:00 P.M., within five working days following completion of the hole, excepting holidays. If samples are not delivered in a timely manner, work will be suspended until the samples have been delivered as required by the contract.
D.Acceptance. Samples having less than 6 inches of recovery or more than 2 inches of wash material will be considered unacceptable unless, in the judgment of the Engineer, the actual recovery represents the best sample obtainable. All samples shall become the proper ty of the State. 648-3.03 Thin -Walled Tube Samples
A.Progressing the Hole. The hole shall be a minimum of 4 inches in diameter. Drilling mud may be used if permitted in writing by the Engineer. Hollow stem augers will not be allowed. The hole shall be cleaned using methods and equipment which will not disturb the soil to be sampled. Bottom discharge bits, including samplers, will not be allowed. The 2 inches of soil directly above the sampling elevation shall be removed with a clean -out jet auger without the use of water. “N” size drill rod or larger shall be used. 648-3.04 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 B. Sampling. Thin -walled tube samples shall be taken in the strata designated by the Engineer. Samples shall be recovered with a stationary piston type sampler or a hydraulically operated piston sampler, modified to accept the thin -walled tubes specified in §732 -05. Samplers with piston rods extending to the ground surface must be provided with clamps which positively lock the piston against upward travel during lowering of the sampler until the sampling depth is reached. During the press the piston rods shall be loc ked in a stationary position to eliminate any movements either up or down. In addition, the sampler shall also be provided with positive locks to secure the piston rods prior to removal of the sampler after penetration. At the elevation to be sampled, the tube shall be pressed into the soil with a continuous motion a distance of 18 inches. Care must be taken to allow air and water to flow freely through the vent thus preventing compression of the soil sample. After pres sing to the required depth and waiting for 5 minutes, the sampler shall be carefully rotated and removed from the hole. During the removal of the sampler the hole shall be kept full of fluid. Before the thin -walled tube is removed from the piston, the piston rod shall be backed off to admit air past the flattened threads to break the vacuum. For other approved types of eq uipment, the necessary vacuum breaking measures shall be taken. The length of sample in the tube and also the distance pressed, shall be measured and recorded. Should a thin -walled sample not be retained, a 2 inch driven sample shall be taken. The bottom of the sample shall be carefully squared off at least 1 inch back from the end of the tube and a wax seal, approximately 1 inch thick, shall be poured in the bottom end of the tube. The soil at the top of the tube shall be carefully squared off and a wax seal, approximately 1/2 inch thick, shall be poured. Any space remaining between the top or bottom of the sample tube and the wax seal shall be filled with sawdust or paper after the wax has hardened. Wax will be furnished by the Geotechnical Engineering Bureau. The ends of the tubes shall be sealed with snugly fitting plastic caps which shall be secured in place with friction tape. Wax shall not be placed on the outside of the tube. Labels shall be placed on the tube below center and secure d with strips of tape.
C.Marking, Packaging and Transporting Samples. Thin -walled tubes shall be labeled to show the Project Identification Number, Location, hole number, sample number, and depths from which the sample was taken. The samples shall be handled, stored and transported using care to prevent the samples from being subjected to freezing, drying, jarring and any other disturbance. The tubes properly packaged shall be stored and transported in an upright position at all times. The tubes shall be delivered by the Co ntractor to: New York State Department of Transportation Laboratories State Campus, Building 7 1220 Washington Avenue Albany, New York 12206 between the hours of 8:00 A.M. and 3:00 P.M., within five working days after obtaining the tubes, excepting holidays.
D.Acceptance. Thin -walled tubes having less than 12 inches of undisturbed recovery will be unacceptable for payment unless in the judgment of the Engineer, based on a recommendation by the Director of the Geotechnical Engineering Bureau, the actual recovery represent s the best available. Thin -walled tubes which have been frozen will be unacceptable for payment. Samples that are not taken in accordance with the specification, or that are not properly sealed, or transported may be rejected. 648-3.04 Rock Core Samples 648-3.05 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 A. Progressing the Hole. The hole shall be progressed through the overburden in accordance with §648 -3.02A until refusal is encountered. Continuous core drilling shall then be progressed in boulders and ledge rock at locations and to depths determined by the Engineer.
B.Sampling. Core shall be drilled using a double tube, swivel type core barrel. If at any time the core barrel is withdrawn more than 1 1/4 inch es, the core barrel shall be removed from the hole and the core removed from the barrel.
C.Marking, Packaging and Transporting Samples. Rock cores shall be labeled in accordance with the current Geotechnical Engineering Bureau Drawing entitled “Proper Labeling of Rock Cores.” They shall be placed in core boxes constructed in accordance with the current Geotechnical Engineering Bureau D rawing entitled “Core Box - AX, BX, HX, NX Sizes” and delivered to the Department's Regional Office or to a location designated in the proposal within two weeks after completion of the hole.
D.Acceptance. Rock core recoveries of less than 85 percent of each run will be considered unacceptable unless, in the judgment of the Engineer, all obtainable state -of-the-art equipment and methods have been used and actual recovery represents the best obtainable. 648-3.05 Open Well Piezometer
A.Progressing the Hole. A 4 inch nominal diameter cased drill hole shall be progressed to the depth specified on the contract documents. Equipment conforming to the requirements contained in §732 -01 shall be used.
B.Installing the Well Pipe. The open well piezometer shall be assembled to form a continuous pipe as recommended by the manufacturer or as directed by the Engineer. The open well piezometer shall be placed in the hole as shown in the Open Well Piezometer drawing to the elevation o r depth specified in the contract documents or as directed by the Engineer. No grout, debris or other foreign material shall enter the PVC pipe during the installation.
C.(Vacant)
D.Placing the Bentonite Seal. After the final sand placement the steel casing shall be withdrawn an additional 12 inches. and the bentonite pellets placed to form a 12 inch thick seal.
E.Grouting and Casing Removal. The hole shall be grouted from the bottom using the mix found at the end of this subsection or in proportions approved by the Engineer. The contractor shall withdraw the casing. As the casing is being withdrawn, the level of grout shall be maintained wit hin 5 feet of the top of the hole at all times. The PVC pipe shall not be allowed to move vertically while withdrawing the casing. COMPONENT NYSDOT SPECIFICATION REQ. PROPORTION BY VOL. PORTLAND CEMENT TYPE 1 OR 2 §701 -01 2 PARTS WATER §712 -01 12 PARTS BENTONITE (ground to pass a No. 200 sieve) N/A 1 PART 648-3.06 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 F. Finishing. Wait 18 hours for the grout to cure. If the grout bleeds or shrinks, the hole shall be backfilled with sand to within 12 inches of the top of the hole. The manhole shall be mortared over the top of the open well piezometer as shown in Open Well Piezomet er drawing. 648-3.06 Bore Hole Grouting. Prior to placing the grout, the sides of the boring shall be supported to the satisfaction of the Engineer using casing or some other positive means. The Contractor shall mix the grout in the following proportions, by volume: BENTONITE 1 PART DRY CEMENT 12 PARTS WATER 18 PARTS or in proportions approved by the Engineer. After the boring is cleaned out, a grout pipe shall be placed to the bottom of the hole and grout pumped through the pipe to completely fill the boring for the full depth of the boring. After grouting, the casing shall be removed, and the boring topped off with grout. All mixing and placing operations shall be performed to the satisfaction of the Engineer. 648-4 METHOD OF MEASUREMENT 648-4.01 Furnishing Equipment for Making Borings. The quantities to be paid for will be the number of drill rigs, including barges, platforms and support vessels where required on water, specified in the proposal or work order, and for additional drill rigs ordered on the project by the Engineer. Paym ent will not be made for any drill rig that does not work at least 75 percent of the total working time computed from the date of actual commencement of the work to the final completion date, except for addi tional drill rigs ordered to the project by the Engineer. 648-4.02 Split Barrel Sample. The quantity to be paid for will be the number of acceptable samples obtained. 648-4.03 Thin -Walled Tube Sample. The quantity to be paid for will be the number of acceptable samples obtained. 648-4.04 Rock Core Drilling. The quantity to be paid for will be the number of linear feet drilled from which acceptable core was obtained. Measurement for payment shall be made in the presence of the Engineer. 648-4.05 Drill Hole (2 1/2 inch and 4 inch diameter). The quantity to be paid for will be the number of linear feet of boring progressed in overburden, less a deduction equal to the specified sampling interval for each unacceptable sample. Measurement shall be made from the surface elevation where the bor ing starts (including top of bridge deck or the water surface if working from a floating platform) at each hole. Measurement for payment shall be made in the presence of the Engineer. 648-4.06 Open Well Piezometer. The quantity to be paid for will be the number of linear feet of PVC pipe satisfactorily installed in accordance with this specification, measured from the top of the pipe to the bottom of the slotted screen. 648-4.07 Bore Hole Grouting (2 1/2 inch and 4 inch diameter). The quantity to be paid for will be the number of linear feet of drill hole grouted in accordance with these specifications. 648-5 BASIS OF PAYMENT 648-5.01 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 648-5.01 Furnishing Equipment for Making Borings (on land or water). The unit price bid for each drill rig shall include the cost of all labor, materials and equipment including barges, platforms and support vessels necessary to furnish, transport and maintain the drill rig, and dismantling and removing the equipment. 648-5.02 Split Barrel Sample. The unit price bid per sample shall include the cost of all labor, material and equipment necessary to obtain, mark, package and deliver the sample. The jars, cartons and samples shall become the property of the State. 648-5.03 Thin -Walled Tube Sample. The unit price bid per sample shall include the cost of all labor, materials and equipment necessary to obtain, mark, package and deliver the sample. The tubes and samples shall become the property of the State. 648-5.04 Rock Core Drilling. The unit price bid per foot shall include the cost of all labor, material and equipment necessary to obtain, mark, package and deliver the samples. The core boxes shall become the property of the State. 648-5.05 Drill Hole (2 1/2 inch and 4 inch diameter). The unit price bid per foot shall include the cost of all labor, clearing of all drill holes in accordance to New York State Department of Public Service Rule 753, and material and equipment used to progress the hole from which an acceptable sample or s amples were obtained and acceptably recorded on a driller's log. The unit price bid shall be based on 50 foot incremental depths as follows: 0 - 50 feet 50 - 100 feet 100 - 150 feet 150 - 200 feet over 200 feet 648-5.06 Open Well Piezometer. The unit price bid for this item shall include the cost of all labor, materials and equipment necessary to satisfactorily install and protect the open well piezometer. The Contractor will receive full payment after the open well piezometer has been approv ed by the Engineer. 648-5.07 Bore Hole Grouting (2 1/2 inch and 4 inch diameter). The unit price bid for grouting borings shall include the cost of furnishing all labor, materials and equipment necessary to complete the work as required by these specifications. The cost for progressing the boring will be paid under its appropriate item. Payment will be made under: Item No. Item Pay Unit

648.01 Drill Hole, 2 1/2 inch diameter 0 to 50 feet Depth Range Foot

648.02 Drill Hole, 2 1/2 inch diameter 50 to 100 feet Depth Range Foot

648.03 Drill Hole, 2 1/2 inch diameter 100 to 150 feet Depth Range Foot

648.04 Drill Hole, 2 1/2 inch diameter 150 to 200 feet Depth Range Foot

648.05 Drill Hole, 2 1/2 inch diameter greater than 200 feet Depth Range Foot

648.06 Drill Hole, 4 inch diameter 0 to 50 feet Depth Range Foot

648.07 Drill Hole, 4 inch diameter 50 to 100 feet Depth Range Foot

648.08 Drill Hole, 4 inch diameter 100 to 150 feet Depth Range Foot

648.09 Drill Hole, 4 inch diameter 150 to 200 feet Depth Range Foot

648.10 Drill Hole, 4 inch diameter greater than 200 feet Depth Range Foot

648.11 Split Barrel Sample Each

648.12 Thin -Walled Tube Sample Each

648.13 Rock Core Drilling AX Foot

648.14 Rock Core Drilling BX Foot

649-3.01 NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 202 4 VOLUME 3 648.15 Rock Core Drilling NX Foot

648.16 Rock Core Drilling HX Foot

648.17 Furnishing Equipment for making Borings Each

648.18 Furnishing Equipment for making Borings on water Each

648.19 Furn. Equip. for making Borings on water using stationary platform Each

648.20 Open Well Piezometer Foot

648.21 Grouting 2 1/2 inch Bore Hole Foot

648.22 Grouting 4 inch Bore Hole Foot

SECTION 649 - AUDIBLE ROADWAY DELINEATORS (Last Revised January, 2017) 649-1 DESCRIPTION. Audible delineators are depressions placed on the road surface to serve as driving aids. This work shall consist of installing audible roadway delineators where indicated on the contract documents. 649-2 MATERIALS. None specified. 649-3 CONSTRUCTION DETAILS 649-3.01 Milled -In Audible Roadway Delineators (MIARDs).

A.Equipment. The construction equipment shall include a rotary type cutting head capable of cutting the MIARD depressions to the dimensions and at the spacing indicated on the Standard Sheets. The pattern of cutting tips on the head shall be arranged to produce a relatively smooth cut with approximately 1/16 inch between peaks and valleys. Prior to beginning full production work on asphalt shoulders, the Contractor shall demonstrate to the Engineer the ability to achieve the desired surface without tearing or snagging the asphalt to be milled. The cutting head shall be on its own suspension system, independent from that of the power unit, to allow the head to align itself with the slope of the shoulder and/or any irregularities in the shoulder surface. The cutting tool shall be equipped with gui des or a guidance system, clearly visible to the operator, to provide for consistent alignment of each MIARD at the offsets from traveled way indicated on the project plans. Where directed by the Plans or EIC to mill in MIARDs in areas marked with crosshat ching, the spacing of the MIARDs shall be adjusted to minimize damage to the markings. No milling shall be done within 4 inches of transverse joints.
B.Installation and Dimensions. The finished MIARDs shall conform to the dimensions and spacing shown on the Standard Sheets. The milling machine shall be capable of grinding to within 3 feet of an obstruction. The offset from traveled way may be changed at the EIC's discretion. At the end of each working day, the Contractor shall remove all equipment to a location where it does not present a hazard to traffic. The pavement shall be cleaned by sweeping and the work area shall be reopened to traffic. The milled material shall be t horoughly removed from the shoulders. In uncurbed areas, the millings may be swept off the shoulder to serve as shoulder back -up material. In curbed areas, millings shall be removed from the project and disposed of in an acceptable manner. 649-3.02 Centerline Audible Roadway Delineators (CARDs).
A.Scheduling and Coordination. Because of the need to promptly replace pavement markings and reopen the highway to traffic, milling of CARDs shall not be conducted when conditions would not allow pavement markings to be placed soon after. To facilitate prompt placement of pavement
Source: New York Standard Specifications, 2024 Edition. Pages 713720 of 1,264.