Laserfiche WebLink
<br /> <br />MEMORANDUM <br /> <br />TO: Jeremy Barnhart, Planning Manager <br /> <br />FROM: <br /> <br />Terry Maurer, City Engineer r(p1'-- <br /> <br />DATE: June 27, 2007 <br /> <br />SUBJECT: Elk River Municipal Utilities proposed well and treatment <br />facility in Twin Lake Estates <br /> <br />As requested, we have reviewed the submittal for the proposed well and treatment <br />building to be located in Twin Lake Estates. Based on our review, we would offer the <br />following comments: <br /> <br />1. Twin Lakes Parkway needs to be open cut to provide access to the existing <br />water main and sanitary sewer. The restoration section shown is adequate. <br />However, the plans should indicate that restoration of the street must occur <br />within a reasonable amount of time. It would seem with the placement of <br />concrete curb and gutter and pavement, that full restoration within 7 working <br />days would be possible. Also, a signing plan, which includes a detour around <br />the site during construction, will be necessary. <br /> <br />- <br />2. A portion of the existing sidewalk will also need to be removed and replaced. <br />Most of the sidewalk will become part of the driveway into the well/treatment <br />site. Therefore, the sidewalk needs to be replaced with concrete at least 6 <br />inches thick to support the heavier loads. It may be advisable to construct the <br />portion of the driveway between the sidewalk and the back of curb out of <br />concrete also. <br /> <br />3. The driveway is proposed at 12 feet wide. It skirts an existing wetland on the <br />south side. There is a proposed retaining wall that appears to have a <br />maximum height of approximately 8 feet. Given the height of the wall, a <br />fence on top will be required to protect pedestrians. The fence is shown but is <br />noted as designed by others. The type of fence and the installation should be <br />provided in the plans or supplemental submittal. It also appears to be very <br />tight between the wetland, retaining wall and driveway. How will the wall <br />construction proceed without impacting the wetland? Finally, the type of <br />material between the top of the retaining wall and the edge of the driveway is <br />