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HomeMy WebLinkAbout2006-10-12 BRAA Ltr to MFRA Re Pond GradingBonestroC Rosene Anderlik & Associates Engineers & Architects October 12, 2006 Dear Mr. Miller: Sincerely, Karen S. Erickson, P.E. a West Highway 36 . St. Paul, MN 55113 Office: 651 - 636 - 4600 a Fax: 651- 636 -1311 www.bonestroo.com Mr. Eric Miller McCombs Frank Roos Associates, Inc. 14800 28 Avenue, Suite 140 Plymouth, MN 55447 Re: Wal-Mart Expansion- Oak Park Heights Grading of Applebee's Pond BRA File No. 55-04-000 This letter is in regards to the grading of the Applebee's pond as part of the Wal -Mart Expansion in Oak Park Heights. It appears the existing pond bottom contours, as shown on your drawings, were inaccurate. The pond will need to be re- graded to provide a bottom elevation equal to or below the pond inlet and outlet. The existing inlet on the east side of the pond is being removed and replaced as part of the CSM and Lowe's Development; however, it is being installed at the existing inlet elevation. of 937.20. Your contractor will need to-re,-grade the pond bottom to maintain a minimum 4' wide bottom elevation of 937.20 for the entire length of the pond. The side slo p P es shall nit be greater than 3: At the outlet, where the grades are lower than 937.20, the contractor shall slope the bottom at a maximum 3:1 grade from the 937.20 elevation into the existing ground elevation at the structure. BONESTR.OQ, RISENE, ANDERLIK & ASSOCIATES, INC. cc: Eric Johnson, City Administrator, Oak Park Heights Tom Ozzello, Public Works Director, Oak Park Heights DMP, DDH, File -- Bonestroo & Associates K:\55\55private \Walmart!Miller KSE ^grading of Applebee's pond.doc St. Paul, St. Cloud; Rochester, MN * Milwaukee, WI a Chicago, [L Affirmative Action /Equal Opportunity Employer and Employee Owned OCT -rt