104.04 Temporary Concrete Traffic Barrier (Tcb) for Maintenance of Traffic
CATEGORY 100 PRELIMINARY SECTION 104.04 — TEMPORARY CONCRETE TRAFFIC BARRIER (TCB) FOR MAINTENANCE OF TRAFFIC
104.04.01 Description
Furnish, place, reset, and remove TCB.
104.04.02 Materials
Precast Concrete Traffic Barrier 950.01 Vertical Panels and Reflective Barrier Markers QPL TCB shall conform to NCHRP Report 350 and/or MASH 2016 criteria for Test Level 3.
104.04.03 Construction
Maintain TCB in alignment and in a like new condition. Remove and relocate TCBs as directed. Install reflective barrier markers and vertical panels (object markers) on the TCB as specified. Connections. In addition to the pin and loop connection shown on the Standards, the channel splice, vertical I beam, and lapped joint connections specified in the AASHTO Roadside Design Guide, and the proprietary T-Lok and J-J Hook Systems will be allowed provided only one type of joint connection is used for the length of the barrier.
104.04.04 Measurement and Payment
The payment will be full compensation for furnishing, placing, maintaining and removal from the project site as directed, and for all material, labor, equipment, tools, and incidentals necessary to complete the work.
a.Temporary Concrete Traffic Barrier for Maintenance of Traffic and Reset Temporary Concrete Traffic Barrier for Maintenance of Traffic will be measured and paid for at the Contract unit price per linear foot measured along the center line of the top of the barrier. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS The payment for Reset Temporary Concrete Traffic Barrier for Maintenance of Traffic will include removal from its original placement, transporting, and resetting it in its new temporary location.
b.Reflective Barrier Markers and Vertical Panels will be measured and paid for at the Contract unit price per each.
104.05 Traffic Barrier W-Beam (Tbwb) for Maintenance of Traffic
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
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 160–161 of 1,113.