04-25-2005 Council Packet - Laserfiche WebLink

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J^Bonestroo ffisRiosene «jvAnderiik& |\|| Associates Englnctrs 4 ArcMtf U 2335 Utest Highway 36 • SL Paul, MN 55113 Orrice; 6SI-636-4600 • Fax: 6SI-636-I3II w%vwi)onesiroo.com ewtitiT p '*eCE(M6l> ' ^005 ^'^OPOfto/vo March 9,200S Ms. Melanie Cuitia Planner City orOrono Poet Oflloe Box 66 Cryatal Bay. MN SS323 Re: 1 379 Park Drive Pile No. 139^3-000 Plat No. 03-3074 Dear Melanie: We have reviewed the revised plans dated 3-8-03 for the proposed iniprovemenla to the property at 1 379 Park Drive. Tiic improvements include the removal of most of the boulder retaining walls within the 0 to 73-foot setback from the lake. The revised plans show the existing fire pit being removed and the removal of approximately 30-feet of the existing wail nearest the lakeshore. The previous plan proposed to leave the entire 90-feet of wall nearest the lakeshore as is. We have the following comments udth regard to engineerittg matters: • The revised plans indicate that the proposed reduced length of the existing wall nearest the lakeshore results in 166 square feet of hard cover. The r^uction in the length of the wall will require some grading along the existing path to the lake. The plans also identify that approximately 168 square feet of hard cover would be required to install steps in the 0 to 73-foot setback. We have checked the hard cover calculations and concur with die analysis for both the wall and the steps. • Prom an engineering perspective it appears that removing the entire wall along the lakeshore, regrading the site and installing steps ar reducing the length of the wall as proposed and not installing the steps ate viable solutions. Access to the lake using the second option would be by a vegetated path with a slope of approximately 3.2:1. It ie generally accepted that elopee of 3:1 or flatter (as this one is proposed) are maintainable with a lawn mower and walkable under most conditions. • If the no step option is approved we recommend that more detail be provided regarding the proposed vegetative screening shovm lakesi^ from the wall. It should be stated as a condition of this option that steps would not be permitted in the future without the removal of the wall nearest the lakeshore. • Either option will require the submittal of a detailed erosion aitd sediment control plan for review and approval. If you have any questions please call me at (631) 604-4863. Yours very truly, BONESTROO, ROSENE, ANDERLIK A /.SSOCIATES, INC. Tom Kellogg Cc: Greg Gappa, City of Orono Bruce Vang, City of Orono S r -^-'i • St. Paul, St. Cloud, Kocheiter. Willmar, MN • Milwaukee, Wl • Chicago, It, AfVifMtIlfV ActlOT/B^wal Oppirtiwity Impioywf Ml Binplwfvw Owrewd