712.01 731 SECTION 712 – TEMPORARY TRAFFIC CONTROL
712.01 Description ................................ ................................ ................... 731
712.02 Materials ................................ ................................ ...................... 731
712.03 Reserved ................................ ................................ ....................... 734
712.04 General ................................ ................................ ......................... 734
712.05 Pavement Marking Removal ................................ ........................ 742
712.06 Temporary Centerline and Lane Marking ................................ .... 743
712.07 Maintenance ................................ ................................ ................. 743
712.08 Adjustment to Plans ................................ ................................ ..... 744
712.09 Method of Measurement ................................ .............................. 744
712.10 Basis of Payment ................................ ................................ .......... 746
DESCRIPTION
712.01 Description
This work consists of furnishing, erecting, and maintaining all construction warning signs, b arricades, flexible drum channelizing units, temporary pavement markings, and other traffic control devices in accordance with the provisions of the current edition of the MUTCD, including all addenda, or as shown on the Plans or as directed by the Enginee r for the purpose of safely directing traffic through construction zones. This work shall include installing additional devices as necessary in construction work zones. MATERIALS
712.02 Materials
Provide traffic control and marking devices in accordance with the current edition of the MUTCD, except as herein modified. Provide materials as specified in: Signs: Aluminum ................................ ................................ 916.02 Reflective Sheeting ................................ .................. 916.06 Paint ................................ ................................ ......... 916.09 712.02 732 Cold Rolled Carbon Steel -16 gauge ........... ASTM A1008 Non-metallic Drums and Barricades ........................... QPL Reflective Sheeting ................................ .................. 916.06
A.Sign Sheeting Material Sign sheeting material for all temporary const ruction signing shall be Type B or better, Fluorescent Orange color meeting the requirements of AASHTO M 268 and 916.06. For all interstate projects, provide new fluorescent orange sign sheeting material; for all other construction projects, provide new or previously used sign sheeting that is in good condition.
B.Temporary Pavement Marking Material Unless otherwise specified, the material for pavement marking line shall be either temporary pavement marking tape, or reflectorized paint with raised reflective pavement markers placed as shown on the Plans. Where Removable Pavement Markings are specified, provide materials listed on the Department’s QPL. Before use, the manufacturer shall certify to the Department that the removable tape is identical to that listed on the Department’s QPL. Failure of the removable tape to perform satisfactorily with regard to installation or removability is cause for rejection of the material.
C.Cones Cones shall be a minimum of 28 inches high and weighted at the base.
D.Portable Barrier Rail Portable barrier rail shall meet the requirements of and be listed on the Department’s QPL or Standard Drawings. Provide certification from the supplier that the proposed portable barrier meets the requirements of and is listed on the Department’s QPL or Standard Drawings. Submit all certification documents to the Engineer before delivery to the Project. Do not use differe nt shapes, lengths, or connections of rail in the same continuous run. 712.02 733 E. Portable Impact Attenuators Portable impact attenuators shall be in accordance with the Plans and Specifications, meet the requirements for the app ropriate test level, and meet the requirements of and be listed on the Department’s QPL or Standard Drawings.
F.Sign Supports Stationary sign supports shall be steel posts meeting 916. Do not use wood for stationary or portabl e sign supports. Provide portable sign supports that meet the requirements of and are listed on the Department’s QPL or Standard Drawings. In splicing supports, use 5/16 -inch diameter galvanized ASTM A449 (SAE J429 Grade 5) or galvanized ASTM F3125 Grade A325 bolts.
G.Vertical Panels The substrate material for vertical panels shall be aluminum, meeting the requirements of 916.02, or a high density copolymer polyethylene. The high density copolymer polyethylene shall be flexible a nd shatterproof for temperatures to -50 F (ASTM D746). The reflective sheeting shall be AASHTO M 268 Type B or better, meeting the requirements for Fluorescent Orange material as specified in 916.06. Attach the vertical panel (aluminum or copolymer) to a steel “U” post (weight 2.0 pounds per foot) meeting the requirements of 916.03.
H.Flexible Drums, Flashing Arrow Boards, and Changeable Message Signs Select Flexible Drums, Flashing Arrow Boards, and Changeable Message Signs that meet the requirements of and are listed on the Department’s QPL or S tandard Drawings. Traffic control devices defined by the FHWA as Work Zone Category 1 and Category 2 devices weighing less than 100 pounds. Select all Category 1 and Category 2 devices that meet the requirements of and are listed on the Department’s QPL or Standard Drawings. Alternatively, the Contractor may submit a notarized letter , along with documentation from the FHWA Office of Safety, certifying that Category 1 devices and Category 2 devices weighing less than 100 pounds meet the requirements of th e Department’s QPL and Standard Drawings. 712.03 734 Submit a ll certification documents to the Engineer before delivering these traffic control devices to the Project.
712.03 Reserved
CONSTRUCTION REQUIREMENTS
712.04 General
At the pre-construction conference , designate a responsible person who will be assigned to the Project to supervise traffic control. Erect signs in a workmanlike manner such that all supports are plumb, sign panels are generally perpendicular to the travelway , and legends are horizontal so that they effectively convey the intended message. Do not display a dvanced warning signs more than 48 hours before physical construction begins. The Contractor may erect s igns up to one week before needed, if the sign face is f ully covered in a manner approved by the Engineer. Ensure that t he sign sheeting is free of any damage that would reduce the reflectivity. Do not use overlay plates on signs. Mount signs on stationary or portable supports dependent on the type work bein g performed. Drive sign supports a minimum of 3.5 feet into soil or 1 foot into solid rock. Where soil and solid rock are both encountered, the depth of the sign support in the ground shall be: d1 + 3.5d 2 = 42 where d1 = depth in inches of support in so il d2 = depth in inches of support in solid rock The Contractor may splice s tationary U-Post sign supports that are 3 lbs/ft or less, provided the splice is a minimum of 18 in ches. In addition, drive the stubs for the splice as required above and so as not to extend above 18 in ches from ground level. A splice is only allowable with U -Posts and shall not be permitted for any other post types (square tube, round post, I -beam, etc.). Fasten the splice with four bolts, two placed at each end of the splice. In general, work being performed at spot locations and of short duration will necessitate the use of portable supports properly weighted for stability. During periods of non -use, remove warning signs and other devices from the work area, and cover or other wise position them so they do not convey their 712.04 735 message to the traveling public and do not present a safety hazard to drivers. If covered, maintain the covering material in a neat and workmanlike manner during its use. The method of covering the sign face shall not deface or damage the sheeting of the sign. Use flashing or steady burning lights to light barricades and other devices that require lighting, as shown on the P lan details or as directed by the Engineer. Procure and bear the expense of a con tinuous power source.
A.Flaggers Provide flaggers with proper attire and paddle when necessary to safely handle traffic through the construction zone. Ensure that flaggers are trained and certified in flagging operations by one of the follo wing training programs:
1.American Traffic Safety Services Association (ATSSA)
2.National Safety Council (NSC)
3.Tennessee Transportation Assistance Program (TTAP)
4.ABET Accredited University Programs The Department will accept flagger training progr ams developed and conducted by c onstruction industry associations, consultant organizations, and contractor s if they have an established, written program that meets all MUTCD requirements and Department Policy. The Department will review and determine if a n alternative training program is acceptable prior to use. Alternative training programs shall meet all MUTCD requirements and follow FHWA guidance. The Department will consider flaggers to be a general requirement of traffic control and will not make dir ect payment for such. Coordinate flagging operations in a manner that causes as little delay to the traveling public as possible. Delays shall be kept within 2 minutes or ¼ mile, but shall not exceed 5 minutes or a 1 mile maximum, unless prior authorizati on is granted by the Department.
B.THP Troopers and Uniformed Law Enforcement Officers When requested by the Engineer or the Contractor and approved by the Regional Safety Coordinator or Regional Operations Office, a Tennessee Highway Patrol (THP) Trooper ma y be provided to enforce motor 712.04 736 vehicle laws and otherwise assist in securing the public safety. Submit requests for the THP at least 48 hours in advance of the requested time of service. If the THP is scheduled to work and the work is canceled, or the schedule is changed, notify the THP and the Engineer at least 2 hours before the scheduled start of work. When a THP Trooper is not available, the Contractor may provide a Uniformed Law Enforcement Officer if approved by the Engineer and the Regional Safety Coordinator or Regional Operations Office. All Uniformed Law Enforcement Officers shall provide marked law enforcement vehicle equipped with blue lights and have the authority to write traffic t ickets and make arrests within the project site. The Uniformed Law Enforcement Officer shall maintain a detailed written log of enforcement activities and shall submit the log to the Engineer for verification each month. All Uniformed Law Enforcement Offi cers working on Department projects shall have training from a Peace Officer Standards and Training (POST) certified police training academy in the State of Tennessee and an additional 4 hours of FHWA approved work zone training. Submit records of this training to the Engineer.
C.Flashing Arrow Board Install Flashing Arrow Board(s) , meeting all requirements of the MUTCD, at the locations shown on the Plans or as directed by the Engineer. Ensure that the Flashing Arrow Board(s) will perform as specified herein. Correct or immediately replace all Flashing Arrow Boards that exhibit any type of malfunction , including improper dimming. The Flashing Arrow Board shall be capable of displaying the following configurations:
1.Right Arro w – ten lamps flashing in unison forming an arrow
2.Left Arrow – ten lamps flashin g in unison forming an arrow
3.Double Arrow – five lamps in each arrow head and three lamps in a common shaft all flashing in unison
4.Four Point Caution – four outermost corner lamps flashing in unison Use the Flashing Arrow Board(s) in the single arrow mode for lane closure only , and situate and align them so that the flashing arrow is 712.04 737 clearly visible and legible. The single arrow mode display shall have ten lamps flashing in unison. Do not use t he sequential arrow configuration, chevron arrow configuration, and horizontal bar configuration. The flash rate shall not be less than 25 fl ashes per minute or more than 40 flashes per minute. Minimum lamp “on-time” shall be 50% of the cycle. Mount the Flashing Arrow Board(s) so as to provide a minimum of 7 feet between the bottom of the panel and the roadway.
D.Signs Portable signs may be used when the duration of the work is less than 3 days or as allowed by other conditions in the proposal. Ensure that a ll portable signs and sign mounting devices used in work meet the requirements of and are listed on the Department’s QPL or Standard Drawings. When not being used, remove portable signs from the clear zone. Do not turn signs sideways or backwards while the signs are in the clear zone. Mount portable interim signs a minimum of 1 foot above the level of the edge of traveled way and at the hei ght recommended by the manufacturer’s crashworthy testing requirements. All regulatory sign blanks shall be rigid. Make every effort to eliminate the use of interim signs as soon as the Work allows for the installation of permanent signs. Maintain e xisting street name signs at street intersections. Cover all signs or portions of a sign(s) that are not applicable to the Traffic Control Plan so as not to be visible to traffic , or remove such sign(s) from the roadway when not in use. Do not remove existing signs and supports without the Engineer’s prior approval. Store and protect a ll existing signs and supports that are to be removed if this material will be required later in the Work. Furnish, install, reuse, and maintain i nterim guide, warning, or regulatory signs required to direct traffic in accordance with the MUTCD. Mount the bottom of all interim signs at least 7 feet above the level of the pavement edge when the signs are used for long -term stationary oper ations as defined in the MUTCD. 712.04 738 Maintain e xisting guide and exit directional signs on the Project until conditions require a change in location or legend content. When change is required, the signs shall be in accordance with the Traffic Control Plan. When an existing guide and exit directional sign is in conflict with work to be performed, remove the conflicting sign and reset it in a new, non - conflicting location that has been approved by the Engineer. When it is not possible to use existing signs, either in place or relocated, furnish, erect, maintain, modify, relocate, and remove new interim guide and exit directional signs as shown on the Plans or as directed by the Engineer. Complete t he installation of new permanent guide and exit directional signs, and the permanent modification or resetting of existing guide and exit directional signs, when included in the Contract, as soon as practicable to minimize the use of interim guide and exit di rectional signs.
E.Worker Visibility and Safety Ensure that a ll workers within the Project’s r ight-of-way, who are exposed to either vehicular traffic or to construction equipment in the work area , wear high -visibility safety apparel. Consider h igh-visibility apparel to be personal protective clothing that meets performance Class 2 or Class 3 of the ANSI/ISEA 107 publication. Provide Class 3 apparel for night work.
F.Portable Barrier Rail Place all portable barrier rail as far away from the travel lanes as possible while serving the intended purpose. Move or remove a ll portable barrier as directed by the Engineer. The Department will make no additional payment for removing barrier that is no longer required.
G.Lane Closures Hold the length of a lane closure to the minimum length required to accomplish the Work. Locate advanced warning signs for the Project so as to not overlap with the advanced warning signs for lane shifts and lane closures. Use drums in all transition tapers for lane closures on mu lti-lane roads . 712.04 739 Contractor’s Staff performing a lane closure shall have certifications that meet the requirements in Table 712.04 -1 to close lanes on TDOT facilities and shall be onsite during each lane closure performed. Table 712.04-1: Lane Closure Cert ification Requirements Type of Facility Requirement Two Lane Flagging Operations Certification (Shall comply with 712.04.A) Multi-Lane *ATSSA Traffic Control Technician Training or equivalent Controlled Access Freeways & Expressways *ATSSA Traffic Control Technician Training or equivalent * Proof of certification shall be provided to the Engineer at the Pre - Construction Meeting.
H.Night Work Lighting When the Contract requires night work, supply sufficient lighting and equipment as specified herein .
1.Lighting Plan. Submit the following information regarding the lighting plan to the Engineer:
a.Descriptions and sketches of the layout of lighting devices including spacing, luminary height, lateral placement , and anticipated illuminance provided.
b.Photometric and physical specifications of all lighting equipment.
c.Detailed description of all lighting to be used on construction equipment.
d.Methods to be employed to reduce glare.
e.Contractor’s frequency and procedure for checki ng illumination levels.
2.Protective Equipment and Lighting . In addition to their standard protective equipment, equip construction personnel and equipment as follows : 712.04 740 a. Traffic Control Persons, all equipment operators , and all other workers shall :
1.Wear high-visibility apparel that meets performance Class 2 or Class 3 of the ANSI/ISEA 107 publication . Class 3 apparel shall be required for night work.
2.Have a minimum of 12 square inches of reflective material added to their hard hats that is visible from all sides.
b.Also equip Traffic Control Persons with:
1.A flashlight complete with semi -transparent red cone , and
2.Radios or cell phones so that they may communicate with each other.
c.All workers shall receive specific training on night work operations.
d.All vehicles in the work area must operate rotating or flashing incandescent amber lights visible in 360 degrees around the vehicle.
e.All work vehicles including trucks must have red and white reflective tape applied to all sides such that it defines the outline of the vehicle. Provide the equipment specified in Table 712.04 -2 with non-glare balloon style lights or equivalent. The lights will be required on each piece of equipment in operation. 712.04 741 Table 712.04-2: Night Work Lighting Requirements Equipment Type Illuminance Requirement Paver, Milling Machine, Material Transfer Devices One 4000-watt assembly or two 2000-watt assemblies Grader, Roller, Rumble Strip Machine, Shoulder Machine One 400-watt assembly Paint truck One 400-watt assembly or a non- glare 300 -watt floodlight assembly Guardrail driver, stationary operation One 4000-watt assembly or two 2000-watt assemblies or equipment light plant Trail Vehicle One 4000-watt assembly or two 2000-watt assemblies A trail vehicle will be required to follow the last piece of equipment in a mobile operation (i.e. finish roller, pavement marking, etc.) depicting the beginning of the working area. In addition, ensure that portable lighting of at least 400 watts is available for the density testing inspector. The Engineer will determine the illuminance requirement for other vehicles not listed in Table 712.04 -2. The Contractor may substitute a 400 -watt metal halide lamp or equal approved by the Engineer for a 2000 or 400 -watt balloon light assembly. Locate and direct all luminaries in such a way to minimize glare to both motorists and work vehicles. If glare is noted from any travel path, adjust the lighting to reduce the glare to a level acceptable to the Engineer. Replace non -functioning lamps immediately. Check the luminary aiming daily. Regularly clean the luminaries.
I.Specification Compliance The Engineer will notify the Contractor of failure to comply with this Specification or the Plans . The safe passage of pedestrians and traffic through and around the temporary traffic control zone, while minimizing confusion and disruption to traffic flow, shall have priority over all other Contractor activities. Continued failu re of the Contractor to comply with the requirements of the Traffic Control Standard Specification or Special 712.05 742 Provisions will result in non -refundable deductions of monies from the Contract for non -performance of Work as long as the deficiency remains . Failure of the Contractor to comply with this Specification or take immediate correction actions required within 48 hours of written notice shall be reason for the Engineer to suspend all other work on the Project, except erosion prevention and sediment contr ol and traffic control, to apply non-refundable deductions of monies from the Contract at a rate of $2,500 per calendar day per notice , and to withhold payment of monies due to the Contractor for any work on the Project until traffic control deficiencies a re corrected. These other actions shall be in addition to the deductions for non -performance of traffic control.
712.05 Pavement Marking Removal
Remove c onflicting pavement markings , in a manner acceptable to the Engineer, to prevent confusion to vehicle operators. Remove final surface p avement markings by sand blasting, water blasting, or acceptable grinding methods that will cause the least possible damage to the pavement. Remove intermediate surface p avement markings by sand blasting or water blasting, or other approved methods that will cause the least possible damage to the pavement. The following methods are acceptable for removing intermediate surface pavement markings : sand blasting using air or water, high pressure water, steam or superheated water, or mechanical devices such as grinders, sanders, scrapers, scarifiers, and wire brushes. At no cost to the Department, r epair damage to the pavement or surface resulting from pavement marking removal using methods and materials acceptable to the Engineer. The removal shall not result in what appears to be a line that conflicts with the current markings. Accomplish t raffic shifts on the final surface using interim traffic marking tape unless otherwise shown on the Plans . Do not remove an existing pavement marking by painting over with black paint or asphalt. When the method of removal causes sand or other material to accumulate on the pavement, remove the residue as the work progresses. 712.06 743 712.06 Temporary Centerline and Lane Marking Unless otherwise specified, install temporary pavement marking as follows:
1.Provide 4 -inch wide pavement marking line as shown on the Plans for projects that will have traffic maintained overnight. For temporary pavement line markings on intermediate layers of pavement, use reflective tape, reflect orized paint, and raised pavement markers, or a combination thereof as shown on the Plans or as required by the Engineer, and install to permanent standards before dark hours. Short, unmarked sections will not be allowed. The Department will measure and pay for these markings as Painted Pavement Marking (Line) in accordance with 716.08 and 716.09. Preserve established no -passing zones , if any, on the existing pavement; if no -passing zones have not previously been established, establish them before beginning the work. Mark two-lane, two-way highways with 10 -foot long center lines applied on 40 -foot centers and appropriate no -passing barrier lines.
2.Where required on the completed permanent surface , for 10-foot lane lines, no -passing barrier line , and edge line , use reflectorized paint applied as specified in 716.
3.Maintain p avement markings at no additional cost to the Department until they are covered by the subseq uent paving course or the Project is accepted.
4.It will not be necessary to remove pavement markings except for markings that convey conflicting or incorrect information to the traveling public.
712.07 Maintenance
Assume full responsibility for the con tinuous and expeditious maintenance of all signs, barricades, temporary impact attenuators , and all other traffic control devices to meet the “acceptable” category as described in Quality Guidelines for Temporary Traffic Control Devices and Features published by ATSSA . Such maintenance will be considered a part of the original installation cost. Failure to maintain all traffic control devices so as to provide continuous safety to the public will be cause for suspension of construction operations until pro per traffic control is re -established. 712.08 744 712.08 Adjustment to Plans Maintain traffic through the Project in accordance with the traffic control plan and the MUTCD. To request a change to the traffic control plan, submit a plan revision request in writing to the Engineer for approval, with the requested change marked in red on the traffic control plans sheets. The Engineer may adjust the traffic control plan as deemed necessary to ensure the safety of the workmen and tra veling public. COMPENSATION
712.09 Method of Measurement
The Department will measure the following for payment:
1.Signs, including Vertical Panels, erected on suitable supports by the actual area in square feet installed , with no deduction s made for corner radii.
2.Flexible Drums for channelizing traffic by the unit, per each, as determined by counting the maximum number of dru ms on a job site and in use at any one time. This shall be designated by making a notation such as “On October 29, 2013, there were 242 Flexible Drums in use. Pay quantity is 242 Each. ” This will not apply to phase construction projects. On phase construction projects, each phase is treated as a separate project to arrive at a final pay quantity. The highest number used on Phase I, plus the highest number used on subsequent phases, will constitute the final pay quantity.
3.Barricades by the linear foot for the type designated.
4.Delineators and Temporary Flexible Tubular Delineators by the unit, per each.
5.Warning Lights and Flashing Arrow Boards by the unit, per each for the type designated. Payment will be based on the maximum number in place at one time.
6.Portable Barrier Rail by the linear foo t. Separate measurement will be made for the initial installati on of portable barrier rail at each site that the rail is used on the Project as shown on the Plans or approved by the Engineer. No separate measurement will be made for 712.09 745 removing and resetting portable barrier rail on new alignment at the same site to pro vide for changes in traffic control required by the different phases of construction. The following conditions apply to measurements of portable barrier rail:
a.The sites on one directional roadway of a divided highway will be considered independently of the sites on the other directional roadway .
b.Each bridge for which portable barrier rail is shown on the Plans or approved by the Engineer will be a separate site.
c.Additional relocations of barrier rail due to safety of work zone or traffic, as esta blished in the traffic control plans or as directed by the Engineer laterally up to 10 feet, will be paid at 10% of the interconnected portable barrier bid amount unless a separate item is in the proposal.
7.Portable Impact Attenuators based on the init ial installation of each portable impact attenuator. No additional payment will be made for removal, moving , and reinstalling impact attenuators at other locations on the Project as directed by the Engineer. Payment will be based on the maximum number of portable impact attenuators in place at one time.
8.Temporary pavement marking line as described for Painted Pavement Marking Line in 716.07 regardless of whether the lines are painted, taped markings , or raised pavement marker s, or a combination of the above as shown on the Plans or as required by the Engineer , except that Removable Pavement Marking (Line) will be measured by the linear foot of installed line. Unless otherwise specified, the Department will not separately measu re or pay for traffic cones, removal of pavement marking , and flaggers, as these items will be considered incidental to the lump sum item Traffic Control. The Department will pay for THPs, but the Contractor is responsible for notifying the THP and the Engineer when work has been canceled within 2 hours of the schedule d start of work. If the THP is not notified of work cancellation and the THP elects to monitor/patrol the project for a maximum of 2 hours, the Department will deduct from the monies owed the Contractor an amount equaling the THP pay rate for 2 hours of work. 712.10 746 The Department will pay for Uniformed Law Enforcement Officers provided by the Contractor at the per hour invoice price of the officer’s work plus 5% , not to exceed $ 60 per hour for the total hours present on the Project. No compensation will be made for drive time.
712.10 Basis of Payment
The Department will pay for accepted quantities, complete in place, at the contract prices as follows: Item Pay Unit Traffic Control Lump Sum Portable Barrier Rail Linear Feet Portable Impact Attenuator Each Signs Square Feet Vertical Panels Square Feet Flexible Drums Each Temporary Barricades (Type) Linear Feet Removable Pavement Marking (Description) Linear Feet The lump sum payment for Traffic Control is full compensation for providing Temporary Workzone Lighting and all equipment, labor, and materials, and for furnishing flaggers and traffic cones , and for removing conf licting and incorrect pavement markings, as required, until Project completion. Payment for Portable Barrier Rail is full compensation for all materials, installation, maintenance , and all incidentals necessary to complete the work. Payment for Portable Energy Absorbing Terminals will be made at the contract price per Portable Energy Absorbing terminal, complete in place, with total payment based on the maximum number of portable energy absorbing terminals in place at one time as spec ified in 712.09. Payment for Signs and Vertical Panels is full compensation for providing sign panels with proper sheeting and legend, erecting on proper supports, furnishing all mounting hardware, covering when not in use, reloc ating, handling, and maintaining until Project completion. Payment for Barricades is full compensation for materials, equipment, relocating, handling, maintaining, and all incidentals of the work. Unless otherwise designated, all signs, barricades, and oth er traffic control devices covered by this section shall become the property of the Contractor 712.10 747 at the completion of the Project. The salvage value for these items shall be reflected in the contract unit price bid. The Department will pay for 10 -foot lane line/center line and solid barrier line as Painted Pavement Marking (Line) in accordance with 716.08. Payment for Removable Pavement Marking Line, 8-inch Barrier Line, Channelization Striping or Stop Line, is full compensation fo r the installation, maintenance , and removal of the marking line when it is no longer required. Payment for Uniformed Police Officers is full compensation for providing the Officer, official law enforcement vehicle, all necessary equipment, and administrat ive costs associated therewith. 713.01 748 SECTION 713 – HIGHWAY SIGNING
713.01 Description ................................ ................................ ................... 748
713.02 Materials ................................ ................................ ...................... 748
713.03 Reserved ................................ ................................ ....................... 749
713.04 Construction Methods and Requirements ................................ .... 749
713.05 Final Cleanup ................................ ................................ ............... 753
713.06 Method of Measurement ................................ .............................. 754
713.07 Basis of Payment ................................ ................................ .......... 755
DESCRIPTION
713.01 Description
This work consists of constructing foundations and supports, fabricating, furnishing, assembling, and erecting traffic signs on the supports, including delineators when specified, for a section of highway, its interchanges, frontage roads, and roads or streets affording immediate access to the highway. Construct and erect highway signs and devices in accordance with these Specifications and the MUTCD , latest edition. The Plans will show the extent and general ar rangement of the signs. Refer to the Plans for general guidance. If departures from the Plans and Specifications are deemed necessary by the Contractor, submit the reasons for and details of such departures to the Engineer for approval. Do not make any departure without the Engineer’s prior written approval. For departures from the Plans, submit for the Engineer’s approval eight copies of drawings showing the complete design of the proposed departure and all other information necessary to complete the s ign assembly. MATERIALS
713.02 Materials
Provide materials as specified in: Portland Cement Concrete, Class A ................................ ............ 604
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 740–756 of 1,072.