2005-313a - Laserfiche WebLink

Home Browse Search

Florida Erosion and Sediment Control Inspector's Manual r. Dike Design 1 . An earthen dike shall be used to direct stormwater runoff into the temporary slope drain and shall be constructed according to the practice entitled DIVERSION - Section 5 . 18 ( ES BMP 1 . 18 ) . (See Plate 4 . 30a ) 2 . The height of the dike at the centerline of the inlet shall be equal to the diameter of the pipe (D ) plus 6 inches ( 15 cm ) . Where the dike height is greater than 18 inches (45 cm ) at the inlet, it shall be sloped at the rate of 3 : 1 or flatter to connect with the " remainder of the dike . (See Plate 4 . 30a ) Outlet Protection The outlet of the slope drain shall be protected from erosion according to the practice entitled OUTLET PROTECTION - Section 5 . 36 ( ES BMP 1 . 36 ) . (See Plate 4 . 30b ) . Construction Specifications 1 . The measure shall be placed on undisturbed soil or well -compacted fill . 2 . The entrance section shall slope toward the slope drain at the minimum rate of 1 /2 inch per foot (4 cm/m ) . 3 . The soil around and under the entrance section shall be hand-tamped in 8 inch (20 cm ) lifts to the top of the dike to prevent piping failure around the inlet. 4 . The slope drain shall be securely staked to the slope at the grommets provided . 5 . The slope drain sections shall be securely fastened together and have watertight fittings . wr Maintenance The slope drain structure shall be inspected weekly and after every storm , and shall have repairs made if necessary. The contractor should avoid the placement of any material on and prevent construction traffic across the slope drain . w.rr ..r.: :o [ :.a«l rl 4a .r wl : ar . . :a tial [+t Mwr .ter . ,., 1 [aW[1X iTP MS [ 9 h 0. rr.•r .. . ow 1W Won age � j� 11[ Ra [ 7-•'. ' . may` Y • al • r—gym [[ Y :WYYMi �{ Plate 4. 30d Flared End Section Schematic Source: VDH&T Road Designs and Standards rr 4- 104 rr