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• llSt <br /> CONSULTING ENGINEERS <br /> July 19, 1994 <br /> File: 230-234-11 <br /> Mr. Steve Ach <br /> City Planner <br /> City of Elk River <br /> 13065 Orono Parkway <br /> P.O. Box 490 <br /> CIVIL ENGINEERING: Elk River, MN 55330 <br /> ENVIRONMENTAL RE: GRAMSTAD HOMES SITE PLAN REVIEW <br /> MUNICIPAL Dear Mr. Ach: <br /> PLANNING As requested, we have reviewed the concept plan for the Gramstad Home Development on <br /> County Road No. 44. The plan was prepared by Jim Kyro and Associates and has a revision <br /> STRUCTURAL date of June 30, 1994. Based on our review we would offer the following comments: <br /> SURVEYING 1. The project consists of 14 townhomes; 8 of which are built adjacent to the wetlands <br /> surrounding the property. The concept plan indicates that the wetlands boundary has <br /> TRAFFIC been determined by others. However, it does not note who determined this. It seems <br /> a bit unusual that the boundary of the wetlands falls at exactly the same elevation of <br /> TRANSPORTATION 903 around the entire site. Typically, a wetland and boundary will vary in elevation <br /> as the vegetation varies. <br /> 2. The plan should be reviewed by the County Engineer to determine if any additional <br /> right-of-way is needed along Meadowvale Road (County Road No. 44). Currently, <br /> the right-of-way is 33 feet on each side. Typically, the county has asked for <br /> additional right-of-way as platting occurs adjacent to the county roads. <br /> 3. There are no storm sewer calculations provided. They will need to be reviewed at <br /> a future date. The plan does, however, call for a pond centrally located for <br /> 1326 Energy Park Drive sedimentation control with an outlet to the wetlands. The pond has side slopes that <br /> St.Paul,MN 55108 vary from 3:1 and 2:1. According to city policy, the side slopes should be 4:1 or <br /> flatter or the pond should be provided with a fence around its entire perimeter. <br /> 612-644-4389 <br /> Fax:612-644-9446 4. The development is proposed to be served by city sanitary sewer and water. These <br /> utilities are available in Meadowvale Road. The sewer is proposed to be stubbed in <br /> 9800 Shelard Parkway from two directions to serve the buildings. The water is proposed to be looped <br /> through the site. There is one hydrant proposed at the north end of the site and there <br /> Minneapolis,MN 55441 is an existing hydrant along Meadowvale Road. These two should provide adequate <br /> 612-546-0432 coverage. <br /> Fax:612-544-6398 <br /> 234-1904.jul <br />