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<br />. <br /> <br />. <br /> <br />. <br /> <br /> <br />Howard R. Green Company <br />CONSULTING ENGINEERS <br /> <br />October 8, 1999 <br />File: 807640-0240 <br /> <br />Mr. Pete Knaeble <br />Terra Engineering, Inc. <br />6001 Glenwood Avenue <br />Minneapolis, MN 55422 <br /> <br />RE: PRESERVE ESTATES <br /> <br />Dear Mr. Knaeble: <br /> <br />We have reviewed the most recent submittals for the Preserve Estates project. Based on our <br />review we would offer the following comments: <br /> <br />A. Gradina Plan <br /> <br />. The trail easement along Tyler Street will need to be supplied to the City in a separate <br />document from the plat. <br />. Driveways for Lots 1 & 2, Block 3, Lot 8, Block 1 and Lot 4, Block 4 appear to be flat. <br />They should be reviewed relate to the proposed house elevation. <br />. Just south of Lot 8, Block 3 the private trail again crosses the wetland. There is no <br />indication if this is also one of the locations that a bridge will be built. If these are to be <br />part of the construction, the trail should be detailed on the plan and the bridge crossings <br />of the wetland should also be provided on the plans. If not, then note them as such. <br />. There is a low area in Lot 2, Block 2 that is being drained by storm sewer pipe. Has this <br />low area been analyzed to ensure that ponding water will not flood the adjacent <br />drainfield site? <br />. The easements that connect wetlands 6 & 7 and 5 & 8 should have an emergency <br />overflow elevation called out on the grading plan. <br /> <br />B. Plans and Specifications <br /> <br />. All riprap should be noted as Class 4. <br />. The radius of the cul-de-sac should be noted as 45-feet. Spot elevations should be <br />shown around the cul-de-sac for drainage patterns. <br />. The eco-systems engineering report indicated that Lot 9, Block 1 needs a mound <br />system. The plans do not appear to be changed to reflect a mound system on that <br />particular lot. <br /> <br />O:\PROJ\807640j\0240\640-0806.oct99. doc <br /> <br />1326 Energy Park Drive. St. Paul, MN 55108 . 651/644-4389 fax 651/644-9446 toll free 888/368-4389 <br />