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<br /> - <br /> MEMORANDUM <br /> BRW . <br /> Thresh~r Square <br /> RECE\VED 700 South Third Stn::et <br /> :-'!inneupo!is, \oN 554 t 5 <br /> Phon<: (6t1) 370.0700 <br /> SEP 211998 FJx: (61::!) 3iG-137S <br /> tWI & AJIIHI tnllS <br /> To: Nancy RandalVCity of Arden Hills File:37951 0052001 <br /> From: Greg Brown <br /> Date: September 22,1998 <br /> Subject: Dynamark Business Center, Phase III <br /> Preliminary Site Plan Review Comments <br /> I have reviewed the plan sheets AI, A3.1, Cl, C2, C3 and L I and have the following comments: <br /> I) Are the retaining walls shown on the south elevation to be modular block or grouted <br /> masonry type construction" <br /> 2) Existing sanitary and storm sewer utilities need invert elev'ations identified. Pipe . <br /> sizes and slopes should also be listed. (sheet c 1) <br /> 3) Provide calculations/information rdating to tributary drainage art:as, d~sign rainfall <br /> events and ponding levels for the proposed storm sewer system. \\'hat are the <br /> implications of flooding the lower level of the building during brge storm events <br /> (high value space or low v'alue space) ? (Sheet C2, C3) <br /> 4) Extents of proposed watermain work will need to be cxtended since the proposed <br /> grading will likely expose a portion of existing buried service main. (Sheet C3) <br /> 5) Provide erosion control measures around pond outlet during construction period. <br /> 6) Prov'ide existing soils information, footing design and typical pav'ement cross <br /> sections. <br /> cc: Nick LandwerlBR \\' <br /> . <br /> U:\ \Io1'DOCS'...I.RDENHlL\PLAM>.1NG\DYN.-\.\tARK.r.LE:o.1 <br /> -- <br />