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Howard R, Green Qompany <br />QQNSULTING ENGINEERS <br /> <br />May 11, 2000 <br />File: 810630J-0240 <br /> <br />Mr. Scoff Hadicker <br />Senior Planner <br />City of Elk River <br />13065 Orono Parkway <br />P.O. Box 490 <br />Elk River, MN 55330-1900 <br /> <br />RE: <br /> <br />TROTT BROOK FARMS 5Th ADDITION <br />FINAL PLAT AND GRADING PLAN <br /> <br />Dear Mr. Hadicker: <br /> <br />As requested, we have reviewed the final plat and grading plan for Trott Brook Farms <br />5th Addition. As you are aware, this is the plat of the multi-family area in the southeast <br />portion of the Trott Brook Farms preliminary plat. The area consists of 77 units made up <br />of a series of 3-and 4-plex buildings. Based upon our review, we would offer the <br />following comments: <br /> <br />With the multi-family type of development in Trott Brooks Farms 5th Addition, the <br />sanitary sewer and water facilities will be public while the street and storm drainage <br />facilities will be private. All of the common lot area has been designated drainage <br />and utility easement, thus covering the necessary easements for the maintenance <br />and operation of the public facilities. <br /> <br />Several of the individual lots contain additional drainage and utility easements that <br />appear to be for storm sewer. The storm sewer in this area will be considered a <br />private facility. These drainage and utility easements, if granted on the plat, would <br />be to the public or, in other words, to the City of Elk River. We believe it needs to be <br />clarified whether these drainage and utility easements should be provided on the <br />plat or should be separate documents providing the easements to the association <br />which will maintain the storm sewer facilities. <br /> <br />The grading and utility plan shows a series of wetlands used as ponds together with <br />water quality ponds. The high water level for the 100-year storm raises questions <br />about the areas that will be flooded and whether all units will be a minimum of one <br />foot above the high water level. At this point, we have not seen specific storm <br />drainage calculations for the 5th Addition. Therefore, we will save final comment on <br />these issues until we have reviewed the drainage calculations. <br /> <br />O:\PROJ\810630j\0240\Itr 5-10-11 Hadicker.doc <br /> <br />1326 Energy Park Drive · St. Paul, MN 55108 · 651/644-4389 fax 651/644-9446 toll free 888/368-4389 <br /> <br /> <br />