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City of Orono <br />Surface Water Management Plan February 2019 40 <br />Lake Classen (LC) Subwatershed Improvements <br />Currently, no localized stormwater management improvement projects have been <br />identified for the Lake Classen (LC) subwatershed. Should any improvement sites be <br />identified in the future, this plan should be updated to include proposed sites. <br />Long Lake (LL) Subwatershed Improvements <br />LL-1. East Long Lake Road <br />Due to precipitation increases, more frequent flooding is being observed on East Long <br />Lake Road just south of Spring Hill Road. The top of the road in this area is <br />approximately just a couple feet above the normal water level of the wetland on the east <br />side and lake on the west side. During larger events, runoff overtops the road creating <br />unsafe driving conditions. Street and culvert improvements and stormwater treatment <br />should be considered for this location. Removal of a portion of the street in <br />conjunction with trail and stormwater treatment and conveyance improvements would <br />limit flood potential and provide stormwater quality improvement. <br />Prioritization:High <br />Estimated Cost: $77,000 <br />Project Partner(s): None <br />Funding Source(s): City <br />Timeframe: Unknown <br />Maxwell Bay (MB) Subwatershed Improvements <br />MB-1. Farview Lane <br />Runoff draining from Stormwater Pond 4-3, located in the northeast corner of the <br />intersection of Farview Lane and Fox Street, currently flows through a 15” culvert <br />under Fox Street, then through a section of ravine before flowing through an 18” <br />culvert under Farview Lane, and then through a final section of ravine before outletting <br />to Maxwell Bay of Lake Minnetonka. The culvert under Farview Lane is in extremely <br />poor condition, and the road slope is beginning to undercut due to culvert failure on the <br />upstream end. In addition, the ravine has eroded to a depth of a few feet, resulting in <br />the transport of eroded sediments. Due to imminent failure of the road crossing, storm <br />sewer improvements should be considered for this area. Due to erosion, restoration of <br />the ravine should also be considered for the open channel segments along this flow <br />path. As such, this project should be coordinated with Section 5.6. <br />Prioritization:Medium <br />Estimated Cost: Unknown <br />Project Partner(s): MCWD <br />Funding Source(s): City, MCWD <br />Timeframe: Unknown <br />Mooney Lake(MO) Subwatershed Improvements <br />Currently, no localized stormwater management improvement projects have been <br />identified for the Mooney Lake (MO) subwatershed. Should any improvement sites be <br />identified in the future, this plan should be updated to include proposed sites.