Minutes - Council - 02/25/2003 - Laserfiche WebLink

Home

City Engineer Jankowski reviewed the drainage and grading plan and identified the items that should be corrected, as outlined in the City staff review letter dated January 31, 2003, revised February 21, 2003. Councilmember Cook inquired if there was a heavy rain storm event that did not reach the capacity of a 100 year flood, would water still flow into the existing neighborhood back yards. City Engineer Jankowski replied that no information was submitted for an event smaller than 100 years, but he thought it could be beneficial to run an analysis. Mayor Gamec inquired if the proposed trail along Sunwood Drive would connect to Potassium Street and Principal Planner Trudgeon replied yes. Suzanne Dvorak, 14640 Potassium Street NW, stated that the water would impact her property and the City does not have a drainage or utility easement over that portion of her property. Susan Fussel - Louchs Associates, Engineer working on the Village of Sunfish Lake, reviewed the existing conditions of the property and what was being proposed for drainage. Principal Planner Trudgeon inquired if the Engineer was stating that with a 100 year event there would be water going over the existing easement. Ms. Fussel replied yes. If they use the worse case scenario water would go up to 867, which would definitely be on Ms. Dvorak's property. Councilmember Elvig inquired if there was a possibility of connecting to the existing pipe at 146th Avenue. Ms. Fussel explained that the pipe from the outlet to 146th Avenue has no slope to it. She explained that it drains to the south to the existing catch basins and then to the east. There is no way to really lower the pipe without reconstructing 146th Avenue. Councilmember Elvig inquired if there was any type of pumping apparatus that could be used. City Engineer Jankowski replied that staff would not want to maintain a mechanical lift station for storm water, but there a number of things they can look at to alleviate the situation. Councihnember Elvig inquired if staff was comfortable that they could accomplish something to keep water fi'om going onto Ms. Dvorak's property in a 10 year event. City Engineer Jankowski replied that he did not have that information, but they could easily run those numbers to answer the question. Councihnember Strommen stated that she would like to see the drainage issue resolved before moving forward as well as the landscaping issues especially in the transition area. She also City Council/February 25, 2003 Page 8 of 18