09-16-1985 Planning Packet - Laserfiche WebLink

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To:Planning Commission Members From:Michael P. Gaffron, Assistant Zoning Administrator Date:September 12, 1985 Subject:#961 Lakeview Golf Course, 409 North Arm Drive After-the-Fact Conditional Use Permit District - RR-lB Application -After-the-fact request to 1) clean and widen an existing drainage ditch area; 2) excavate a low area to create a 20' X 175' pond; 3) excavate a portion of a designated wetland to solve a drainage problem. List of Exhibits Exhibit A Exhibit B Exhibit C Exhibit D Exhibit E Exhibit F Application Plat Map Property Owners List USGS Topographical Section Defining Drainage Area Copies of Photos Taken General Map Locating Excavated Areas Applicant was not aware of the need for a conditional use permit when he performed the excavating work in June. In two of the three separate projects, the work done was mostly maintenance of existing drainageways. Site 1 - ditch near the intersection of North Shore Drive West and North Arm Drive West. This area has existed as a ditch for many years, and was deepened approximately 1-2 feet and widened approximately 2-3 feet. The spoils were placed on the northeasterly bank and have not yet been graded out. The slopes of the ditch bank appear fairly steep. From a drainage standpoint, there is relatively little change other than an in crease in the storage capacity. This area presumably did not function as a filtration area before and likely still does not after the excavation. This is not a designated wetland area. The watershed for this ditch is approximately 80 acres or about 1/8 of a square mile. Staff would recommend this ditch excavation be approved subject to review by the City Engineer for safety and drainage concerns. Site 2 - pond centrally located on the property. This 20' x 175' pond is 3-4 feet deep and was created to help alleviate a low, seasonally saturated area of mov;ed fairway. The fill from this pond was used for upgrading tee areas and no spoils remain on the site. This low spot drains, at most, about 10 acres in area. This is not a designated wetland. The banks are about a 2:1 slope. Like the ditch area, there appears to be no effect on the drainage pattern other than an increase in storage, and the pond will presumably provide an outlet for the tile system in this low area. This pond drains northeastward through a tile and channel system to the large pond near North Arm Drive.