10-18-2004 Planning Packet - Laserfiche WebLink

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L Boncstroo Roscne Ander1ik& I Associates t, ArcMtKit 233S U^St H>gttM»y 36 • St P»Ji MN SSI13 on ce 65I-636-4600 • Fa* 6Sl-636-l3n •.V4^wtor«j!roocci*i EXHIBIT F October 12.2004 Mt. Jaaicc Oundlach Plainer City ofOroito Port Office Bo* 66 Ciystil Bay. MN SS323 «62S Bohns Point Road t ;leNo 139-04^ PUi No. 04.3042 We have reviewed the proposed and as-buih grading plans for the home constnicted at 1625 Bohns Point Road The applKanti engineer calculated the amount of fill brought into the site at 3940 cubic yards. The previously approved grading plan estinated that 16S0 cubic yards of fill would be brought onto the site to construct the home. The additional fill has raised the grades in several areas and has impacted the drairuge across the property We have the following comments with regards to engineering manets: The as*built grading plan does not agree with the building petmit grading plan in several areas, particularly along the north lot line. The a:ca bet * eer ' pool and the north lot line was defined at a high point with swales routing water easterly and westerly or tot bu’*^»tg perm.* Trading plan. These swales were meant to keep drainage on the subject property and convey flows either wcorriy to the lake or easterly to the existing pond. The as-built grading plat; does not show that these swales were constructed u planned and it appears some water it directed northerly from the high point onto the adjacent property. In addition, water traveluig eoster ly to the pond crosses over the north lot line onto the adjacent property approximately 3 S to 40 feet west of the point shown on the building pennil grading plan. The defined swale shown on the building permil grading plan westerly from the high point wu not constructed. We reconnieod that the applicant regrade along the noith lot line to conuin water on die subject property to the extent shown on the building petmit gradrng plaa The proposed swale along the south side of the home shown at (he 932 contour on the building permit grading plan wu not constructed. This area should be regraded to direct water towards the lake and to dram the low area between the subject property and the property to the south. The City should review and inspect any grading revisions and verify that the changes agree with the ptev lously approv^ building permit grading plan. Silt feiKC and any other necessary erosion control measures should be irutalled, inspected and approved by city sufT pnor to any work on site. If you have any questions plesse call me at (6SI) 604-4863. Yours very truly, BONESTROO. ROSENE, ANDERLOC db ASSOCIATES. INC. Cc. Greg Oappa, City of OroM Bruce Vaag, City of Oraoo • St Paul. St C*oud. Rocnetter. Wiiimar. MN • Milwaukee. Wi • Cnicago. IL f a>Mi S»»«»y»« OwnM VJ