(a) The developer shall adequately protect all roadway ditches and open watercourses to the satisfaction of the Village Inspector by one of the following methods.
(b) Ditch protection in the form of L-9 seeding and L-10 sodding, S.H.D. specifications shall be provided. The following shall be the allowable ditch velocities for L-9 seeding and L-10 sodding on various soil types.
Soil Type L-9 Allowable Velocity fps L-10 Allowable Velocity fps Fine sand 2 5 Silt loam 2 5 Ordinary firm loam 2.5 5 Stiff clay 3 6 Graded silt to cobbles 4 6 Weathering shales 5 - Coarse gravel 6 7 |
(c) When the outlet velocity of storm sewers, culvert pipes, drive pipes or side drains is in excess of the above allowable velocities, sufficient length of I-14 paved gutter shall be provided for transition to allowable velocity.
(d) In all cases, any drainage facility within the subdivision shall be in a stable condition, free from either erosion of sedimentation at the time of final approval.
(Ord. 1500. Passed 12-14-99.)