209Watering

Watering

209.1DESCRIPTION

1 This section describes the requirements for furnishing water for application to soil or aggregate.

209.2MATERIALS

1 Furnish water from specified sources or from sources approved by the engineer.

209.3EQUIPMENT

1 Apply water in a fine, uniform spray during finishing and seeding operations using pressure-controlled spray bars or nozzles.

2 Provide water meters to measure water used and for royalty purposes.

3 Use department-certified tanks, department-certified distributors, or certified water meters. For meters used to determine quantities for payment or measurement, provide a copy of the test report and certification that the meters have been calibrated within the preceding 12 months and are accurate to within plus or minus 3 percent.

4 Prevent the spread of aquatic invasive species (AIS) on all equipment that will be in contact with surface waters in accordance with Wyoming Game and Fish regulations.

Provide the engineer a copy of clearance from the certified inspector prior to moving any equipment onto the project that is designated for use within a waterway.

209.4CONSTRUCTION

209.4.1 General

1 If the contractor elects to use water sources other than those specified, provide documentation to the engineer for the water source site and the associated haul road in accordance with Subsection 106.3.3, Contractor-Furnished. A “Contract Amendment” (Form E-61) will not be required. Costs associated with the change in water source will be at no additional cost to the department.

2 Apply water as follows:

embankment material without puddling or saturation.

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of the material.

traffic, for abatement of air pollution, or for other purposes, apply enough to eliminate the dust.

209.4.2 Prewetting

1 The engineer may allow wetting of materials before excavation.

2 Before prewetting, submit a detailed plan showing the method and equipment to be used. Show the proposed location of water lines and sprinklers, the quantity of water to be applied by each sprinkler, the rate of application, and other pertinent data. Base the plan on soil classification, estimated efficiency, and in-place moisture data from adequate predrilling and sampling for the full depth of each area to be prewet. Multistage prewetting operations may be used.

3 Apply water at a rate that provides optimum moisture content to the depth of excavation. Do not prewet material already over optimum moisture capacity.

4 Prevent or correct excessive runoff through leveling, constructing contour diversion ditches in accordance with Subsection 215.4.3.7, Contour Diversion Ditches, or constructing dikes.

5 During and after prewetting, check the depth of water penetration and moisture content using the methods prescribed in the Materials Testing Manual. Submit test results for incorporation into the project files.

6 Stop prewetting and take corrective measures if it appears that impervious layers or other conditions are interrupting penetration and water is being wasted.

209.5MEASUREMENT and PAYMENT

1 The engineer will measure Water by the 1000 gallons [cubic meter], using tank volumes, distributor volumes, or water meters.

2 Water wasted or used contrary to the contract will not be measured. The department will deduct from monies due or the contractor will reimburse the department for royalties on water wasted or used contrary to the contract.

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3 When specified, the department will pay for all water obtained from the source or sources indicated in the contract.

4 The department will pay as follows:

Pay Item

Pay Unit Measure to the Nearest Pay to the Nearest Water MG [m3] 0.1 MG [0.1 m3] 0.1 MG [0.5 m3]