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^nn ST <br /> ATE OF <br /> Lf�J 17,Z , <br /> DEPARTMENT OF NATURAL RESOURCES <br /> • PHONE NO. Division of Waters, 4140 Thielman Lane, Suite 203, St. Cloud, MN 56301 <br /> 612!255-2976 FILE NO. <br /> February 21, 1996 <br /> Post-Ir brand fax transmittal memo 7671 *of pay.a ► j <br /> Fpm <br /> Steve Ach, Planner - <br /> c o. CO. <br /> City of Elk River Dept. phone it�N� <br /> P.O. Box 490 —fit?CD <br /> Elk River, MN 55330 'Fax"Gil. YYI _ Fax* <br /> Dear Mr. Ach: <br /> NORDIC WOODS PRELIMINARY PLAT, CITY OF ELK RIVER <br /> As we discussed during our phone conversation on February 20, 1996, I have a few concerns <br /> regarding the proposed Nordic Woods development. In particular, I am concerned with Block <br /> One, Lots 7 and 8. As indicated on the grading plan, a culvert Is proposed that would eliminate <br /> approximately 100 ft of a natural watercourse. A DNR Protected Waters permit is required for <br /> the installation of a culvert within this watercourse. The current design would not meet our permit <br /> requirements. Consequently, I would recommend that modifications to the design plan be made <br /> right from the start of this project. The watercourse must remain in its entirety, except for minor <br /> modifications to facilitate the installation of a driveway culvert. It appears that the best location <br /> • for a single driveway culvert would be located along the lot lines of lot 7 and 8. Also, our <br /> Department would consider a minor location shift in the watercourse, approximately 10ft or so <br /> to the west, where the proposed road alignment comes in close proximity to the existing channel. <br /> It may be necessary for the road in- slope to be armored with natural rock riprap to prevent scour <br /> and erosion problems from developing. <br /> Consideration should also be given to properly address stormwater management and erosion <br /> control concerns. In particular, the City should carefully assess these concerns since this <br /> development is within the Lake Orono watershed, which is presently targeted for water quality <br /> improvements. <br /> Please contact me at the above address or phone number if you have any questions regarding <br /> my comments. Thank you for the opportunity to review this matter. <br /> 7erely, <br /> Dan Leis <br /> Area Hydrologist <br /> dl <br /> c: Dave Hills, Regional Hydrologist <br /> Steve Rohlf, Zoning Administrator <br /> • <br /> AN EQUAL OPPORTUNITY EMPI.OYFR <br /> TO' d ZTO ' oN SV : ST 96 . IZ qad 6665-SSZ-ZT9 : 1i1 2iNG Ql010 ' is <br />