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'j;c .n'eas of ih.o <br />■n s H o v.;i‘;to <br />• !i fuithcr iiH <br />I>!o <br />I ’lCsc soil !:or- <br />• Iio ‘^olailcd <br />JlOUld 1)0 I'OIH <br />soil al)sOi|)tion <br />soil absorption <br />tion tests may be <br />District Office <br />McCOMBS-KNUTSON ASSOCIATES, INC. <br />CONSULTilVG ENGINEERS ■ LAND SURVEYORS ■ SITE PLANNERS <br />February 9, 1977 <br />Mr. Henry Muhich <br />Zoning Administrator <br />City of Orono <br />P.O. Box 66 <br />Crystal Bay, MN 55323 <br />^■=■ '■:> Q <br />i' A li-' o'* <br />Subject: Proposed William Levering Subdivision <br />Dear Mr. Muhich: <br />We have reviewed the proposed William Levering subdivision <br />and have the following comments. <br />1.A drainage easement should be provided <br />where shown on the attached plan. <br />2.5* utility easements should be provided adjacent <br />to the street right-of-way for future telephone, <br />gas, and electric service. <br />3.Drainage calculations should be provided for our <br />review to verify that the culvert sizes are <br />adequate. In no case shall culvert sizes be less <br />than 15". <br />4.The street section shown does not meet the require <br />ments for a City street in that the gravel base is <br />thick enough and the street is not shown as <br />being blacktopped. <br />5.The drainage from most of the site is carried <br />through a culvert under the road between Lot <br />1 and 2. We would recommend that this pipe be <br />carried at least 200 feet beyond the right-of-way <br />to eliminate the drainage swale between Lots 1 <br />and 2 which would carry a considerable amount of <br />water. <br />F£6 i)* 1 <br />12805 OLSON MEMORIAL HIGHWAY. MINNEAPOLIS, MINNESOTA 55441 TELEPHONE 16121 559-3700 <br />22 NORTH MAIN STREET, HUTCHINSON, MINNESOTA 55350 TELEPHONE (612)*897-8029 <br />SOUTHWEST ENGINEERING DIVISION, MARSHALL. MINNESOTA 56258 TELEPHONE (5071 532-5820 <br />MLLAQB a ORONO <br />Mr. Hour P©L;ruary <br />Page Two <br />6P:sw <br />Enclosure