528 manner to remain secure during impacts. For larger assemblies, the maximum number of u- channel or back -to-back u -channel allowed for on the Standard Details may be increased. However, no more than three (3) u -channel or two (2) back -to-back u -channel may be installed within a seven (7) foot width. An approved breakaway device shall be used with u -channel when required on the Standard Details and in all cases with back -to-back u -channel. Breakaway devices shall be those approved by the Division for use with the specific brand of supports used. Provided the supports are driven to the depth sp ecified in the Standard Details, the concrete foundation required for permanent back -to-back u -channel may be omitted if allowed for by the breakaway device manufacturer. Variations to the requirements specified above such as number of supports within s even
7.feet, use of breakaway devices, and types of supports may be applied with the approval of the Engineer for assemblies, such as those shielded by barriers, agreed upon by the Engineer as not being subject to impacts. Requirements in the Standard De tails for sign mounting height above the roadway shall be met. Unless otherwise called for on the Plans or approved by the Engineer, signs shall be fabricated using 0.080 -inch aluminum substrate, sheeting materials listed on the Division APL for Retrore flective Sign Sheeting, and matched components recommended by the sheeting manufacturer. Aluminum composite material of a lighter weight than 0.080 -inch aluminum and approved by the sheeting manufacturer may also be used. Manufacturing methods shall be those recommended by the sheeting manufacturer. All orange signs shall be fabricated using Type ASTM -XI sheeting. The sheeting used for all other signs shall be in accordance with Section 661.2.3. Substrate splicing utilized to fabricate signs from substrates smaller than the intended sign size shall only be allowed along edges of signs greater than five (5) feet in length, shall only be allowed once every five (5) feet, and shall be spliced in a manner to prevent separation during impacts. Signs shall be desi gned and fabricated in accordance with fabrication details provided in the Plans or the publication WVDOH Sign Fabrication Manual, as applicable. The following static support mounted supplemental lead -in signs shall be provided and installed on projects meeting the requirements specified herein. The cost of furnishing, erecting, maintaining, and removal of these signs, including supports, shall be included in the units of Item 636011 -* to be paid for each sign as indicated herein. At no time shall these signs be installed closer than 500 f eet From any other work area signing. The Contractor shall install such signs during the initial mobilization phase of the project and shall promptly remove each sign at the completion of the project for which the sign w as erected. 636.9.1.1 -Project Funding Source Signs: Project funding source signs shall be installed if the Total Contact Bid Amount is $750,000 or greater, or as otherwise noted on the plans. The quantity and locations of the signs shall be as directed by the Engineer. The Contractor shall be paid 180 units of Item 636011 -* for each assembly installed. These signs shall be fabricated in accordance with fabrication detail D40 -1 of the publication WVDOH Sign Fabrication Manual. The funding agencies and the dollar amounts involved will be furnished to the Contractor by the Engineer. 636.9.1.2 -Give ‘Em A Brake Signs: Give ‘Em A Brake (GEAB) signs shall be installed if the project is on an Interstate Highway, an APD (Appalachian Highway Corridor), a controlled access highway with posted speed limit of 40 Miles Per Hour (MPH) or greater, or if otherwise noted on the plans. The Contractor shall be paid 300 units of Item 636011 -* for each assembly installed. 529 The signs shall be installed 500’ -1500’ after the first lead -in work area sign unless the work zone is greater than one (1) mile, in length, in which case the GEAB sign shall be installed approximately ¼ mile in advance of the active work area. The signs shall be installed i n both directions on the right side of the highway. GEAB signs shall only be installed in active work areas where workers are present and visible to passing motorists. During periods of inactivity in the work area, the GEAB signs shall be covered or remov ed. These signs shall be fabricated in accordance with fabrication detail G30 -1 of the publication WVDOH Sign Fabrication Manual. 636.9.1.3 -Fines Doubled Signs: Fines Doubled signs shall be installed if the Total Contact Bid Amount is $750,000 or great er, and the following criteria are met:
1.Four lane Interstate or expressway roadways with a posted speed limit of 55 MPH or greater
2.Two lane roadways with a posted speed limit of 50 MPH or greater and with an ADT at 3,000 or greater These signs shall be f abricated in accordance with fabrication detail R20 -2 of the publication WVDOH Sign Fabrication Manual. The Contractor shall be paid 300 units of Item 636011 -* for each assembly installed. These signs shall be installed approximately 500 f eet After the fi rst maintenance of traffic sign installed for each project. The signs shall be installed in both directions on the right side of the highway.
636.10 Cleaning of Traffic Control Devices :
Cleaning of all traffic control devices, when directed by the Engineer, shall consist of hand cleaning with a mild detergent followed by a thorough rinse with clear water. No harsh chemical, abrasive cleaner or tool shall be used that will damage the reflectorized surfaces or otherwise reduce the useful life of the device.
636.11 Flagger Or Traffic Director :
The flagger and traffic director are separate functions and therefore, shall not be interchanged. Flagger or traffic director required for operations that are not necessary but are initiate d by the Contractor for their benefit or ease of operations shall not receive payment. Flagger or traffic director required outside of the project limits as a result of any of the Contractor 's operations shall not receive payment. Flagger or traffic director required within the project limits in regards to the Contractor 's transportation to or from waste areas, borrow pits, asphalt/ concrete plants or other necessary sites shall receive payment if considered reasonable and necessary by the Engineer . The traffic control plan (TCP) and any approved revisions will be strongly considered in determining the appropriateness of payment.
636.11.1 Flagger: All flaggers shall be furnished by the Contractor, and it shall be
the Contractor's responsibility to provide flaggers at any location necessary to assure the safety of the travelling public. Hand signaling devices and high visibility apparel meeting the requirements of the WVDOH Traffic Control Manual shall be used by the Contractor’s p ersonnel assigned to traffic control responsibilities. Approved headgear, if worn, and vests worn by the Contractor’s personnel shall not bear the Division symbol. Wireless two -way communication shall be provided to the flaggers when they are out of sigh t of each other.
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 548–549 of 1,006.