01-16-1996 Planning Packet - Laserfiche WebLink

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1/1 Bonestroo Rosene v=5 Anderlik & Associates Engineers & Architects ■oneiiroo. Rosene. Anderflk and Associates. Incis an Affirmative Action/E^ Opportunity Employer Otto G. Bonestroo. P E. RoOea W Rosene. P E-* Josefsn C Andenik. P E. Marvin L Sorvaia. P E. RiCttard E- Turner. P E. Glenn R. Cook. FJE. Thomas E. Noyes. P E. RoOert G. Schunicht. P E. Susan M. Eberlin. CFA* * Seruor Consultant January 5,1995 Howard A. Sanford. P E. Ketth A. Gordon.. P E. RoOen R. Pfefferie. P.E. Richard W Foster. P E. Oavid O Loskota. P E. Rooert C Russek. A.I.A. Jerry A. Bourdon. P C. Mark A. Hanson. PI. Michael T. Rautmann. PE. Ted K. Field. PE. Thomas R. Andersoa A.l^ James R. Rosenmerkel. P.E. Donald C Burgardt. P E. TT.omas A. Syfko. PE. Frederic J. Stendorg. P J. Ismael Marttrscx. P E. Michael P Rau. F.E. Thomas W. Peterson. P E. Michael C LyrKh. P E. James R. Maiand. PX Jerry D. Pertisch. F.B. Scott J. Arganek. P.E. Kenr>eth P Anoerson. PE. Mark R. Rolfs. PE. Mark A. Selp. P E Gary W. Mortea PE. Paul X Gannon. AXA Daniel J. Edgerton. P E. A Rick Schmidt P E Dale A. Grove. PX Philip J. CasweN. PX Mark D. Wallis. P E Miles X Jensen. P E L PhUUp Gravel. PX Karen L Wiemert. PX Gary D. Krlstofltt P.E Brian K. Gage. P E F ^odd Foster. PX Keith R. Yapp. PX Douglas J. Benoit PX Shawn O Gustaf son. P.E. Cecilio ONvIer. P E Kent J Wagner. P E Paul G Heuer. PX Jonn P. Gorder . PX Dan D. Boyum. PX Jeffrey J. EMerlrsger. PE. Joseph E Rheia PX Lee M. Mann. PX Charles A. Erickson Leo M Pawdsky HarlanM.Olson Agnes M. Rlrsg James F. Ersgelhardt Ms. Jeanne A. Mabusth Building and Zoning Administrator City of Orono Post Office Box 66 Crystal Bay, Minnesota 55323 Re: McMillan Pond File No. 139-2086 Dear Jeanne, We have reviewed the proposal to create a pond within an existing Type 1 & 3 wetland at 1275 Lyman Avenue, located on Lot 2, Block 1, Orono Orchards Highlands. This wetland is protected by the City of Orono by ordinance, regulated by the Minnehaha Creek Watershed District at the State level as part of the Wetland Conservation Act (WCA), and under the jurisdiction of the U.S. Army Corps of Engineers (COE) at the Federal level. The wetland delineation, proposed erosion control and seeding is acceptable from an engineering standpoint. We have the following general comments in regards to excavating ponds within wetlands. It depends on the conditions of the wetland in question. If the wetland consists mainly of one type of plant such as reed canary grass or cattails, we prefer to see an increase in diversity by adding different types of habitat such as open water. For certain types of priority wetlands such as sedge meadows. Type 1 or 2 scrub-shrub, or wooded wetlands, we do not recommend excavation. We prefer that ponds are constructed near the wetland fi'inge to remove reed canary grass or purple loosestrife whenever possible. Tlie COE has a general permit No. 18 for excavation of a wildlife pond which should be followed. Mitigation of the excavated wetland area could be required by the City or COE, however excavation is not regulated by the WCA. If the pond is constructed In accordance with permit #18 the COE would probably not require mitigation. The proposed pond shown on Nadeau’s construction plan does not conform to permit #18 because the sideslopes are far too steep (1.5-foot H to 1-foot V) and the depth reaches 8 feet. If the plan is revised to show more gradual slopes with a depth of 3.5 to 4.5 feet as noted, we would recommend approval without mitigation. Please contact me at this office if you have any questions regarding this matter. Yours very truly. BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. Shawn D. Gustafson, P.E. 2335 West Highway 36 ■ St. Paul, MN 55113 ■ 612-636'4600 • ’S ' I