Agenda - Public Works Committee - 07/19/2016

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Mr. Miske replied it was in 2014 but that was the only time. City Engineer Westby suggested discussing the project further and talking to the residents to get an idea of how open they would be to work with the City. Staff will verify which properties would benefit, and then get an idea of how these preliminary numbers would work. Mr. Miske said he understands he will have to pay something, and also understands there is no value to the city. He inquired how much he will need to pay. He stated he is concerned with the value of the house and whether it will be sellable. Motion by Councilmember Johns, seconded by Councilmember Shryock, to recommend that the City Council accept the feasibility report but deny approval of a drainage improvement project pending development of a cost effective, equitable funding program. Motion carried. Voting Yes: Chairperson Riley, Councilmembers Johns and Shryock Voting No: None. 5.02: Review Updated Estimated Costs for Sunfish Lake Sedimentation Basin Improvements City Engineer Westby reviewed the staff report and request of the 14520 Sunfish Lake Drive NW property owner, Mr. Bergevin, that the City reconstruct specific stormwater treatment improvements impacting a portion of their back yard. The requested work includes constructing a settling basin at the end of the storm sewer outlet from Sunwood Drive where it intersects 1451 Lane NW to reduce the frequency and volume of stormwater runoff running through the drainage swale along the rear of their lot. They are also requesting removal of existing cattails and other vegetation commonly found in wetlands from the swale and restoring the swale to a lawn condition. City Engineer Westby reviewed past consideration and discussion of this ongoing situation and noted the swale is working as it was intended to work. Staff believes the water in the bottom of the swale in recent years is due to groundwater rising in conjunction with the lake level rising. City Engineer Westby stated staff recommends the property owner be required to pay for the requested work since it solely benefits the use of his private property. However, the City could consider contributing an amount commensurate with the estimated long-term saving associated with maintaining a settling basin next to a public street versus maintaining a linear drainage swale along the rear of a private property. Based on a 50-year maintenance schedule, this cost would be approximately $500 assuming the City would dredge and restore the turf in the swale twice, once every 25 years. Chairperson Riley noted the largest number in the costs is the wetland mitigation. He questioned what is being replaced and where the basin is going. Public Works Committee/June 21, 2016 Page 5 of 9