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Northlake Wood-CS 920422TO: Rey Gonzales, Street Superintendent VIA: Kenneth M. Griffin, P.E., City Engineer BOM: M. Shohre Daneshmand, P.E., Civil Engineer.~/"~/~ SUBJE~: Oakcrest Lane Ditch Improvement Grading Plans DATE: ~ril 22, 1992 As per your request, I have designed the attached set of grading plans reflecting ditches along Oakcrest Lane for your use. In preparing said plans, a detailed field survey was conducted. We have identified the minimum regarding and reconstruction required for proper drainage in this area, if funds are available. In brief, the following culverts and driveways with no culverts are proposed to be removed and replaced (R&R) as noted: Ditch A': $1A - The existing 8" PVC/15" CMP appears to be functioning well. However, a judgment call at the time of construction is in order as to whether said culvert should remain or be replaced. $2A - R&R ex. 24" CMP with 10 L.F. of 24" RCP. #4A - Erosion on both ends of the existing 18" RCP, along Meadowcreek Road at Oakcrest Lane, be controlled as noted on plans. Ditch #SB - R&R ex. 12" CMP with 16 L.F. of 12" CMP. #TB - R&R ex. 10" steel pipe with 14 L.F. of 12" CMP. ~9B thru #13B - R&R placed existing driveways at centerline of ditches as noted. Ditch C': $7C - R&R ex. 12" RCP with 14 L.F. of 12" RCP. #10C - R&R ex. asphalt pavement along Sandy Oak Lane at Oakcrest Lane, as noted. 4 Memo to Rey Gonzales, Street Superintendent April 22, 1992 Page 2 Please note that it has been our intent to keep the ditch regrading to bare minimum, while providing adequate drainage. Attached please find one set of plans for your use, and additional sealed plans will be provided in the near future. Please let us know if you have any questions. KMG/MSD/bd cc: Steve Goram, Director of Public Works