709.01 DESCRIPTION. Construct, furnish, and install welded steel
cattle guards at the locations shown on the plans and conforming to plan details and these specifications. Cattle guards of types different from those shown on the plans may be furnished with prior approval.
709.02 MATERIALS. Materials shall comply with the following
sections and subsections: Concrete (Class M) Section 901 Steel Pipe (Wingwalls) 1007.11 Reinforcing Steel 1009.01 Bolts, Nuts and Washers 1010.11 Treated Timber Section 1014 Use the minimum size steel specified and fabricate in accordance with Section 809. Pipe wings shall be 2 -inch diameter standard strength steel pipe. Paint steel in accordance with Section 811. Galvanized pipe will not require painting. Repair damaged galvanized steel in accordance with 811.08.
709.03 CONSTRUCTION REQUIREMENTS. Extend excavation a
minimum of 12 inches outside neat lines of concrete walls or footings. Deposit backfill in layers not exceeding 6 inches compacted thickness and compact each layer to the density of adjacent soil with mechanical tampers. When placing the cattle guard in the roadway, the compaction requirements shall conform to 203.07. Place concrete and reinforcing steel in accordance with Section 805 and Section 806.
709.04 MEASUREMENT. Steel cattle guards will be measured per each
unit. Excavation, backfill, concrete, and reinforcing steel will not be measured for payment.
709.05 PAYMENT. Payment for steel cattle guards will be made at the
contract unit price per each. The concrete placed in cattle guards will be identified by lots and shall be subject to pay adjustments in accordance with Table 901-5 and Note 1 therein. Size, sampling, and testing of each concrete lot shall be in accordance with the materials sampling manual. Payment will be made under: Item No. Pay Item Pay Unit 709-01 Steel Cattle Guard Each
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