627.05 Concrete Longitudinal Barrier
596 SECTION 627
627.01 Description
This work consists of constructing longitudinal concrete barrier with concrete and reinforcing steel. The Department will consider alternative designs that meet exterior dimensions, and test and performance criteria required by the Contract. Submit alternative designs to the Resident Engineer for approval.
627.02 Materials
Provide materials in accordance with the following sections: Material: Section: Portland Cement Concrete Class A 701 Reinforcing Steel 723
627.03 Equipment — Vacant
627.04 Construction Methods
Measure, batch, and mix concrete for the longitudinal concrete barriers in accordance with Subsection 414.04, “Construction Methods.” Build forms for the barriers in accordance with Section 502, “Forms, Falsework & Temporary Works.” Place reinforcing steel for the barriers in accordance with Section 511, “Reinforcing Steel for Structures.” Place the concrete for the barriers in accordance with Section 509, “Structural Concrete.” Ensure exposed concrete surfaces are smooth and dense. Finish concrete surfaces in accordance with Subsection 509.04.G, “Finishing Formed Concrete Surfaces .” Fill rough areas, holes, and porous spots after removing the forms. Cut bolts, wires, or other appliances, used to hold the forms, ¼ in [6 mm] below the surface and fill the depressions with cement mortar. Finish exposed surfaces in accordance with Subsection 509.04.G, “Finishing Formed Concrete Surfaces.”
627.05 Method of Measuremen T — Vacant
HIGH -TENSION CABLE BARRIER 628.02 597 627.06 BASIS OF PAYMENT The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.CONCRETE LONGITUDINAL BARRIER, DESIGN 1 Linear Foot [Meter]
B.CONCRETE LONGITUDINAL BARRIER END SECTIONS Each The Department will consider the cost of concrete and reinforcing steel used in the construction of longitudinal concrete barriers and end sections to be included in the contract unit price for the relevant pay items. SECTION 628 HIGH -TENSION CABLE BARRIER
628.01 Description
This work consists of providi ng and installing complete sections of high -tension cable barrier or wire rope systems, including crashworthy end treatments, concrete socketed foundations, concrete anchors, and other appurtenances or hardware fittings.
628.02 Materials
Provide materials in accordance with the following sections, subsections, and external reference: Materials: Section, Subsection, or External Reference: Portland Cement Concrete, Class AA (≥4,000 psi) 701 Reinforcing Steel 723 Anchor Bolts and Nuts 724.02 Galvanizing (Bolts, Nuts and Washers) AASHTO M 232 Fittings (Steel Hardware) 732.01 Reflective Sheeting 733.05
A.Rigging Screws (Turnbuckle) Provide rigging screws (for tensioning the cable) that are galvanized after threading in accordance with ASTM A 153. For installations longer than 1,000 ft [300 m], include at least one rigging screw per 1,000 ft [300 m] strand. For installations 1,000 ft [300 m] or les s in length, include one rigging screw per strand near the center of the strand installation. Provide rigging screws that will develop minimum tensile loads without yielding to 36,800 lb [16.7 metric ton].
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 610–610 of 935.