04-13-1998 Council Packet - Laserfiche WebLink

Home Browse Search

r #2341 - Dan Anderson April 9, 1998 Page 2 Lot 7 road adjacency layout as proposed is acceptable as long as 2.0 acre min. area requirement is met. - Staff to proceed with MUSA amendment process to allow this property (and potentially others) to be sewered. On March 30 staff requested that the 929.4 Lake Minnetonka OHWL be used to show the 75' setback correctly on the preliminary plat drawings since it was discovered that the shoreline shown on the drawings was taken from the City topographic maps which do not accurately show the 929.4' contour. The surveyor has staked the 75 ’ setback line on the site and shown it on the revised preliminary plat (Exhibit C). Stormwatcr/Drainage/Grading Plan Applicant submitted a preliminary grading, drainage and erosion control plan on March 18 which was reviewed by the City Engineer on March 19. Applicants provided additional information to the City Engineer on March 23 which was reviewed by Heather 0!>on of Bonestroo in her April 1 memo regarding stormwater quality and quantity (See Exhibit B). Staff met on the site with the applicant on April 6 and reviewed aspects of the drainage plan. Based on our review and the comments from City consultants, staff has concluded the following: As much drainage from the site as possible is planned to be directed to the stormwater pond on Lot 7. It is not feasible to divert all runoff from all 7 building sites to the pond. The stormwater pond should discharge to the south, along the west side of Old Crystal Bay Road and eventually to Maxwell Bay. There are no existing culverts across Old Crystal Bay Road to handle these flows, and the topography and drainage system within the plat of French Creek Woods was not intended to accept these additional flows. - Runoff from the west-sloping portions of Lots 4-5-6 will be sufficiently handled via the natural vegetated buffer provided for and retained via the Tree, Woodland and Vegetation Preservation Easement. However, any runoff from the homes to be constructed on Lots 4-5-6 that could be readily diverted to drain to the private road (and hence to the pond), should be so diverted. - Likewise, any runoff from the existing house and from new houses to be constructed on Lots 2 and 3 that can easily be diverted to the road, should be. It appears that the new home locations will be on elevations that will allow a portion of their hardsurfaccs to drain toward the road. Further, the developer has agreed that a