FLOOD04542 - Laserfiche WebLink

Home Browse Search

e , ;; . . . e EM 1110-2-1913 31 Mar 78 treatment will vary according to the type and location of a project. Generally, projects near urban areas or where recreational areas are to be developed will require more elaborate treatment than those in sparsely populated agricultural areas. Minimum treatment should include proper drainage, topographic smoothing, and the promotion of conditions conducive to vegetative growth. Insofar as possible, borrow areas should be planted to conform to the surrounding landscape. Stands of trees should be left remaining on lands ide borrow areas if at all possible, and excavation procedures should not leave holes, trenches, or abrupt slopes. Restoration of vegetative growth is important for both landside and riverside pits as it is not only pleasing aesthetically but serves as protection against erosion. Willow trees can aid considerably in drying out boggy areas. Riverside pits. should not be excavated so deep that restored grass cover will be drowned out by long submergence. Agencies responsible for maintenance of completed levees should be en- couraged to plant and maintain vegetation, including timber, in the borrow areas. It is desirable that riverside borrow pits be filled in by natural processes, and frequent cultivation of these areas should be discouraged or prohibited, if possible, until this has been achieved. h. Clearing, Grubbing, and Stripping. Borrow areas should be cleared and grubbed to the extent needed to obtain fill material free of objectionable matter, such as trees, brush, vegetation, stumps, and roots. Subareas within borrow areas m~ be specified to remain un- touched to preserve standing trees and existing vegetation. Topsoil with low vegetative cover m~ be stripped and stockpiled for later place- ment on outer lands ide slopes of levees and seepage berms. 4-5 ~