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I 1 <br /> ~' 7 2" Schedule 40 <br /> 1 1/2"schedule 40 for sprayers <br /> I <br /> I <br /> I .--- ---...1.________................j.- r Kt <br /> - -- - - -- --= -T <br /> 2% 5:1 _ 5:1 I I __ _ 2% <br /> _ <br /> Slope ' Slope - Slope - Slope <br /> _- II <br /> II <br /> Slope�___---- <br /> Wheel Wash Plan <br /> L1II <br /> 15-- 20'- -15 - _ay_ i <br /> F <br /> Elevation View <br /> I I 18 Water level <br /> 1/11 Slope <br /> I <br /> I <br /> I <br /> I <br /> I <br /> ii ' <br /> \ . <br /> I ,r—._-1 <br /> Section A-A <br /> N.T.S. <br /> ' Figure 4.3 Wheel Wash <br /> Notes: <br /> I <br /> 1. Asphalt construction entrance 6 in. asphalt treated base(ATB). <br /> 2. 3-inch trash pump with floats on the suction hose. <br /> 3. Midpoint spray nozzles, if needed. <br /> 4. 6-inch sewer pipe with butterfly valves. Bottom one is a drain. Locate top pipe's invert 1 foot <br /> above bottom of wheel wash. <br /> 5. 8 foot x 8 foot sump with 5 feet of catch. Build so can be cleaned with trackhoe. <br /> 6. Asphalt curb on the low road side to direct water back to pond. <br /> 7. 6-inch sleeve under road. <br /> 8. Ball valves. <br /> 9. 15 foot. ATB apron to protect ground from splashing water. <br /> I <br /> February 2005 Volume II- Construction Stormwater Pollution Prevention 4-11 <br />