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HomeMy WebLinkAboutV 87-01; H. Von Packard; Variance (V) (6).- R. 6. HILL 81 ASSOCIATES, INC. * 60-80.1 Land Surveying & Civil Engineering 514 E. Vista Way Vista, CA 92084 (619) 941-2271 May 23, 1986 City of Carlsbad - Engineering Dept. 1200 Elm Avenue Carlsbad, Ca. 92008 Attention: Mr. David Hauser Reference: Grading and Erosion Control on M.S. 533 PM 12243 Dear Mr. Hauser: I am writing this letter to alleviate your concerns regarding grading and possible erosion of the above referenced property. Grading on subject property has been minimized to a point that only 5400 C.Y. of material must be excavated to make the necessary improve- ments. per acre to only 870 C.Y. which is a very small amount. building pads have been designed on slopes of less than 20% and the associated grading surrouding the pads and roads have been greatly reduced through the use of retaining walls which have eliminated cut This includes excavation for roadxays and limits the grading The proposed slopes. In my opinion, the construction of the access roads will have a bene- ficial effect in lessening the amount of sedimentation into the Agua Hedionda Lagoon. The erosion control will be accomplished through the use of hard surface drainage intercepting the present overland flow of storm waters. Because there is no upland excavation above the pads or roadways and the normal overland flow is intercepted by a hard surface drainage systsm (being the access roads), the actual erosion and resultant sedimentation would be substantially less. Please consider that the revised plan will have many positive effects on the surrounding properties. a hard surface drainage system intercepting overland flow, grading will be minimal and sensitive to the existing topgra?hy and the proposed three single family dwellings will be esthetically appealing for the coastal area. Erosion will be lessened through use of Very truly yours, R.B. Hill & Associates, Inc. Richard B. Hiil , President R.C.E. 24765 RBH:di