1 On a thoroughly cleaned surface, place and screed concrete to form a paved section
of designated width. Ensure that the final surface of invert paving is parallel with the flow line and level or slightly-dished transversely with the pipe centerline. Coat aluminum pipe surfaces to be invert-paved with an asphalt mastic. 614.4.3 Chutes and Stilling Basins 1 Unless the ground can be graded to a neat section with uniform grades, use forms to
construct chutes, stilling basins, or similar items. Excavate the trench or basin to necessary limits and grade to the specified shape. If required to reduce flow velocity, score the surface or otherwise leave a rough surface texture. Hand-tool contraction joints at intervals of 10 ft [3 m]. Ensure a joint depth equal to at least one-third of the thickness of concrete and a width of ⅛ in [3 mm]. 614.4.4 Ditch Checks 1 When placing concrete in a trench, excavate to specified lines and grades with sides as
vertical as practical. Form exposed edges above the finished grade to leave neat lines. 614.4.5 Curing 1 After finishing concrete, cure in accordance with Subsection 513.4.13, Curing Concrete.
When using a curing compound, apply at a rate of 1 gal/150 ft² [1 L /3.5 m²].
614.5MEASUREMENT and PAYMENT
1 The engineer will measure Erosion Control Concrete by the cubic yard [cubic meter]
based on batch volumes ordered and placed. 2 The department will pay as follows:
Pay Item
Pay Unit
Measure to the Nearest
Erosion Control Concrete
CY [m3]
0.25CY [0.25 m3]
558
Pay to the Nearest
0.1CY [0.1 m3]
Cattle Guards
615.1DESCRIPTION
1 This section describes the requirements for constructing and resetting cattle guards
and replacing cattle guard grill units.
615.2MATERIALS
1 Provide materials in accordance with the following:
Material
Subsection
Admixtures Aggregate for Concrete Bolts, Nuts and Washers Curing Materials Fence Posts Fly Ash Galvanized Coating Joint Materials Metal Delineator Posts Paint Portland Cement Prefabricated Cattle Guard Units Reinforcing Steel Structural Steel Water Welded Grill Cattle Guard Units
801.4 803 815.6 802.1 812.8 801.2 815.14 807 816.5 809 801.1 812.6.1 811.1 815.1 814.1 812.6.2
615.3EQUIPMENT
1 Ensure that equipment meets the following:
Equipment Batch Plant Mixers Placing Equipment
Subsection 513.3.1 513.3.2 513.3.3
615.4CONSTRUCTION
615.4.1 General 1 Ensure that plants providing precast concrete foundations are certified in accordance
with Subsection 502.4.1, Plant Certification.
559
Cattle Guards