04-08-1996 Council Packet - Laserfiche WebLink

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Zoning File #2115 March 13, 1996 Page 2 The watershed that drains directly into the proposed pond or lower area is approximately 8 acres in area. Review Exhibit K, the low retention area drains eventually into the ravine to the southeast of the property’ and then under Tonkawa to an even deeper ravine that drains directly into Stubbs Bay. The steep banks of this ravine are continuously eroding from the runoff that enters from the west. The ra\ ine also receives runoff from the road to the west and the higher elevations on the north and south sides. One major benefit of this proposal is that the improvement will provide control of stormwater runoff of the upland areas within applicant's property. The City will ask for drainage easements over the pond area and over the drainageway that flows to the ravine at the southeast comer (a minimum 10 width), refer to E.xhibit K. 1. Staff Recommendation To approve the conditional use permit application for Frank Bennett involving the property located at 405 Tonkawa Road that would allow the dredging of approximately 1900 cubic yards of fill, portions of which will be used to install a new access drive linking applicant's homestead property with subject property. Approval is subject to the following conditions: Applicant to obtain a County permit for any work done within the County right- of-way wiih the removal of existing drive serving 315 Tonkawa Road. If the pond is to serve as a wildlife pond, then side slopes must be redesigned to 8:1 in accordance with the .Army Corps' general permit #18. Applicants consultant to provide written confirmation to the City that pond has been approved by the Corps of Engineers. Silt fence to be installed at the pond outlet (106.6) prior to any land alteration. All disturbed areas to be seeded with a wetland mixture such as MnDOT 250 rather than sod. Applicant to obtain a land alteration permit from the City of Orono. Final plans to include detail on new drive extending north from property ;md removal of existing drive at 315 Tonkawa Road. J