2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 100 PRELIMINARY SECTION 104.05 — TRAFFIC BARRIER W-BEAM (TBWB) FOR MAINTENANCE OF TRAFFIC
104.05.01 Description
Furnish, install, maintain, reset, and remove temporary TBWB . Refer to 605.01.01 and 605.01.02.
104.05.02 Materials
Traffic Barrier W-Beam 918.01 Traffic Barrier Posts 918.02 Hardware for Traffic Barriers 918.03 Wood Offset Blocks 918.04 Composite Offset Blocks Section 605 TBWB shall conform to NCHRP Report 350 and/or MASH 2016 criteria for Test Level 3.
104.05.03 Construction
Refer to 605.03.01, 605.03.02, and 605.03.03. TBWB. Use construction methods in accordance with the applicable portions of Section 605. TBWB Replacement. Immediately replace damaged portions of the TBWB. Install the TBWB to the correct horizontal and vertical alignment using offset blocks in kind. TBWB Reset. When work is sufficiently completed through a traffic control area and TBWB is no longer required, remove and reset the TBWB and all components to a new work area as specified. Restore the previous location to original condition. TBWB End Treatments. 104.09 and 104.10. Place an approved end treatment at all ends of TBWB prior to opening to traffic.
104.05.04 Measurement and Payment
The payment will be full compensation for furnishing and installing all cables, posts, brackets, traffic barrier W-beam, hardware, galvanizing, excavation, backfilling, connections to rigid 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS structures, removal, restoration of the area, and for all material, labor, equipment, tools, and incidentals necessary to complete the work as directed.
a.Traffic Barrier W-Beam for Maintenance of Traffic will be measured and paid for at the Contract unit price per linear foot.
b.Replacing sections of the traffic barrier that have been damaged by vehicular traffic while in place will be measured and paid for at the Contract unit price per linear foot for the Traffic Barrier W-Beam Replacement for Maintenance of Traffic item.
c.Reset Traffic Barrier W-Beam for Maintenance of Traffic will be measured and paid for at the Contract unit price per linear foot.
d.Temporary Traffic Barrier End Treatments will be measured and paid for at the Contract unit price per each.
104.06 Tubular Markers
CATEGORY 100 PRELIMINARY SECTION 104.06 — TUBULAR MARKERS
104.06.01 Description
Furnish, install, and remove tubular markers for maintenance of traffic.
104.06.02 Materials
Tubular Markers QPL Reflectorization 950.03 Tubular Markers may be manufacturer-certified as NCHRP Report 350 and/or MASH 2016 compliant as long as there are no attachments to the device.
104.06.03 Construction
Install tubular markers as recommended by the manufacturer and as approved by the Engineer.
104.06.04 Measurement and Payment
Tubular Markers will be measured and paid for at the Contract unit price per each. The payment will be full compensation for removal and for all material, labor, equipment, tools, and incidentals necessary to complete the work. Tubular markers damaged due to traffic operations will be measured and paid for at the Contract unit price per each for Replacement of Tubular Marker Mast. If the base detaches from the pavement, replace the entire tubular marker assembly at no additional cost to the Administration, unless damaged by Administration snow removal operations. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 162–163 of 1,113.