SECTION 926 — ANCHORED AND UNANCHORED BARRIER FOR TEMPORARY TRAFFIC CONTROL 900-67 — ANCHORED AND UNANCHORED BARRIER FOR TEMPORARY TRAFFIC CONTROL
926.01 Description.
This work includes providing anchored or unanchored barrier for temporary traffic control at the required locations. Use anchored and unanchored barrier for temporary traffic control that complies with the currently adopted edition of the AASHTO Manual for Assessing Safety Hardware (MASH).
926.02 Materials.
Anchored and Unanchored Barrier Units. Use Portland cement concrete and reinforcing that conforms to Subsection 909.02.1. Barrier units comprising other materials, such as steel, plastic, etc., may also be used. Ensure that the barrier units are installed to not inhibit roadway drainage. Barrier Delineators. Use barrier delineators that have a minimum of 9 sq in. of reflective surface area. Ensure that the unit can be mounted on the side of the barrier by use of an adhesive or other method approved by the manufacturer. The barrier delineators may be one of the products on the Department’s Approved Materials List. High Strength Non-Shrink Grout. Use high-strength, non-shrink grout that conforms to Subsection 819.02.2. Anchorage System. Use anchors that conform to ASTM F3125 Grade A325, nuts that conform to ASTM A563, and washers that conform to ASTM F436. Use galvanized hardware according to ASTM A153. Use bolts, anchors, nuts, and washers that conform to Subsection M05.05.4. For new or existing bridge decks, ensure that the anchorage system meets or exceeds the specific test level as specified on the Plans. Install anchors per the manufacturer’s recommendations.
926.03 Construction Methods.
Plant Requirements. Ensure that plants conform to Subsection 909.03.1. Barrier Delineators. Install white delineators on the right side of the traveled way and amber delineators on the left side of the traveled way. Install the delineators at 50-ft intervals, located 3 in. from the top of the concrete barriers.
Part 900 — Incidental Construction and Services August 2025
900-68 SECTION 926 — ANCHORED AND UNANCHORED BARRIER FOR TEMPORARY TRAFFIC CONTROL Placement. During transporting, storing, hoisting, and handling of the units, prevent cracking or damage. Do not install damaged units or units that have markings painted on them from previous work sites. During layout and placement, consider stormwater flows to avoid blocking any inlets, outlets , or accesses to the drainage system. Remove unanchored barriers from their initial locations and transport to alternative locations as indicated on the Plans. Install anchors per the manufacturer’s recommendations. For new bridge decks and existing bridge decks to remain, use only adhesive, embedded, or expansion anchors. For existing bridge decks not to remain, through-bolts may be used in lieu of adhesive or expansion anchors. Secure the anchored barrier units to the bridge deck surface. Firmly anchor the barrier in place before initiating any construction operations for which the barrier is intended to protect. Develop details for transitioning the selected temporary barrier system to any existing highway or bridge barrier systems and submit to RIDOT for approval. Place anchors on the traffic side of the barrier and locate so that interference with the longitudinal deck reinforcement is minimized. Before barrier placement, locate and mark deck reinforcement using a pachometer. Adjust the position of the barrier to minimize interference between the anchors and deck reinforcement. Place t he barrier units so that exposed blunt ends are not within the clear zone stipulated in Subsection 106.05(a). Removal. For anchored barrier, patch the remaining holes in the new deck with high strength, non-shrink grout. After removal, mechanically sweep both sides to remove built up sediment and construction debris. Submittals. For anchored and unanchored barrier on bridge decks, submit the selected temporary barrier system, including the rationale for the test level selection and any details for transitioned areas to any existing barrier systems, to the Engineer for approval.
926.04 Method of Measurement.
Anchored and Unanchored Barrier for Temporary Traffic Control will be measured in the linear feet of continuous runs of the units placed. The measured length includes all 3-in. joints between the units.
Part 900 — Incidental Construction and Services August 2025
SECTION 926 — ANCHORED AND UNANCHORED BARRIER FOR TEMPORARY TRAFFIC CONTROL 900-69
926.05 Basis of Payment.
The Department will pay for the completed and accepted quantities as follows: Pay Item Pay Unit Anchored or Unanchored Barrier for Temporary Traffic Control LF The price constitutes full compensation for all labor, tools, materials, equipment, initial placement of the units, furnishing, hauling, handling, any new parts required to secure the units to the pavement or to adjacent units, relocation of the units if required, regularly moving units to gain access to and from the site, subsequent removal of the units, barrier delineators, and all incidentals required to finish the work, complete and accepted. The Contractor will be paid 90 percent of the Contract unit price when the barrier units are in place. The remaining 10 percent of the Contract unit price will be paid when the barrier units have been removed from the Project. Payment for temporary work is included under SECTION 937.
Part 900 — Incidental Construction and Services August 2025
900-70 SECTION 927 This Section has been Reserved for Future Use.
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