06-13-2011 Council Minutes - Laserfiche WebLink

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MINUTES OF THE ORONO CITY COUNCIL MEETING Monday, June 13, 2011 7:00 o'clock p.m. . *4. #11 -3511 TERRY SCHNEIDER WITH KLINGELHUTZ DEVELOPMENT ON BEHALF OF WOODHILL SENIOR COTTAGES OF NAVARRE, 2525, 2535 AND 2545 SHADYWOOD ROAD - FINAL PLAT - RESOLUTION NO. 6054 Rahn moved, Bremer seconded, to adopt RESOLUTION NO. 6054, a Resolution Approving the Plat of Woodhill Senior Cottages located at 2525, 2535 and 2545 Shadywood Road. VOTE: Ayes 5, Nays 0. CITY ENGINEER'S REPORT 5. FOREST LAKE DRIVE STORM SEWER IMPROVEMENTS Kellogg stated at the October 11, 2010, City Council meeting, the Council directed Staff to investigate a sedimentation problem in Lake Minnetonka adjacent to the Forest Arms Association joint dock. The sedimentation issue was first brought to Staffs attention in February, 1993. The sedimentation is due to a storm sewer that discharges to the lake near the joint dock. Over the years, the sediment has accumulated to a point that it makes one or more of the joint dock slips inaccessible. 'The necessary survey work has been completed to prepare recommendations and a preliminary cost estimate has been prepared to resolve the existing sedimentation issue and minimise further export of sediment to the lake. The improvements include dredging the sediment and installation of two sump • catch basins on Forest Lake Drive. The sump catch basins are designed to catch sediments before they are discharged to the lake. The City has several of these sump catch basins installed upstream from several water bodies and, if they are routinely, maintained, do a good job of removing sediments prior to discharge to a lake or stream. Construction of a sedimentation basin on Forest Arms Association commonly owned property was initially discussed but it was discovered that the existing storm sewer at Forest Lake Drive is too deep to discharge to a sedimentation basin unless it was constructed adjacent to the lake. Even then, the basin would be relatively ineffective because it would not be deep enough to prevent much sediment from being exported to the lake. The sedimentation basin option would have increased the cost of the project and would have rendered part of the Association's property unusable. For these reasons the sump catch basin is being recommended as the best and most cost effective way to solve and manage the problem. The cost estimates provided in the Council packet accounts for rental of equipment and the labor provided . by the public works employees. As a result, the City would not necessarily be writing a check to a contractor for $20,000 and that the real outlay for this project is for the rental of equipment. Kellogg noted there is an existing pipe between Forest Lake Drive and where it currently discharges, which is located entirely on 4265 Forest Lake Drive. There is no evidence that the City has any type of easement over that pipe at the present time and that this may be an opportunity to try address that issue. Kellogg stated the Council has three options regarding the existing pipe and easement: one, they could do nothing and leave the situation as is; the second option would be to put the pipe in a new location, possibly on the Forest Arms Homeowners Association property; and the third option would be to talk • with the property owner to see whether an easement can be acquired. The property owner has indicated a willingness to work with the City and provide an easement. Kellogg stated he does not expect the homeowner would have to pay the legal and engineering costs associated with acquiring a city easement. Page 4 of 9