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DENNIS E. BROWN P.E. <br />CIVIL ENGINEER <br />8009 Quail Avenue North <br />Brooklyn Park, Minnesota 55443 <br />(612) 560-4906 <br />July 21, 1993 <br />Mr. Clifton J. Aichinger, Administrator <br />Ramsey - Washington Metro Watershed District <br />2785 White Bear Avenue, Suite 210 <br />Maplewood, MN 55109 <br />RE: Frederickshaven Addition 2nd Additon <br />Little Canada, Minnesota <br />Frederickshaven Permit No. 91 -83 <br />Dear Mr. Aichinger, <br />Enclosed is the revised Grading Plan for Frederickshaven 2nd <br />Addition. The cul -de -sac has been shortened to eliminate any <br />filling of wetland GL -9. The Minnesota DNR requested this fill <br />be eliminated. Also changed was the location of the 12" RCP <br />overflow for the low area in the west edge of the plat and the <br />location of the 24 -inch RCP outlet. These were moved to the <br />location of the existing 12" CMP overflow. This 12" CMP overflow <br />and the existing 12" CMP overflow for GL -9 will be abandoned when <br />the new storm sewers are constructed. <br />Revisions to the grading plan for these changes required more <br />fill of the upland wetland area adjacent to the building site in <br />lot 8, because of set back from the new cul -de -sac location; <br />however, moving the street omitted more fill than was added. <br />Wetland added at the 211 -inch RCP outlet was revised to the new <br />location. <br />Wetland fill r 6800 sq. feet (2 locations) <br />Wetland Added = 8400 sq. feet <br />Also enclosed is a Stormwater Management Report ammending the <br />Frederickshaven Report, November 1990. This report describes the <br />changes and includes revised flow calculations. <br />Copies of this plan are also being sent to Tim Fell, USCE and <br />Molly Shodeen, Mn -DNR. <br />If additional information is needed, please call. <br />Sincerely, <br />Dennis E. Brown, P.E. <br />MnReg 7442 <br />Enclosure <br />cc : F> <br />letty Family Partnership <br />1 t y of Little Canada <br />Page 62 <br />