Agenda - Public Works Committee - 09/16/2014

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As discussed in the attached July 19, 2011 Public Works Case, three options were explored at the time. Option 1 explored relocating the drain field outside of the flood -prone area, which was the option ultimately selected. Option 2 was to enlarge the existing stormwater pond area between Yakima Court and 156th Lane, which at the time had an estimated cost of $60,000. And option 3 was to replace a significant amount of storm sewer that was constructed with the Reilley Estates development to provide better drainage to the Rum River, which had an estimated cost of $150,000. Given the above -normal snowfall last winter and rainfall this spring, the drainage issues experienced at this property this year will likely never be eclipsed. And since there was never any danger of flooding to the structure itself, this is likely a low -risk issue and will likely not result in property damage in the future. Storm water drainage issues such as this are not uncommon to Ramsey. Numerous areas with such issues exist across Ramsey, especially in the northern half of the City,where homes were built in pockets of wetlands without natural outlets. In a few areas, an outlet could be constructed for the pocket wetland to drain the low area to a roadway ditch or a County ditch. However, in most cases the wetland pockets are at roughly the same elevation so if an outlet were to be provided for one low area it may push more water to the next low area creating a situation that is then worse for those residents. City Staff has been contacted by numerous residents over the years about such drainage issues and will update the Public Works Committee on this broader issue during the October 21st Public Works Committee meeting. With this in mind, if any drainage improvements are completed to assist the property owner at 5220 - 156th Lane, it would likley set a precedent for other property owners with similar issues or concerns. Funding Source: Funding for any ordered improvements would come from the Stormwater Fund. Recommendation: Staff recommends reviewing the existing berm grading that was completed in the rear yard of 5220 - 156th Lane at the time the drain field was relocated to determine if a low cost solution can be identified to assist this property owner with their standing water concerns. Action: Direct Staff to review the berm grading that was completed with the drain field relocation work in 2011 to determine if a low-cost, high -benefit improvement can be made. Attachments Drainage Map WG Park Lot Detail 5220 156Ln PWC Case 071911 PWC Minutes 071911 PWC Minutes 101111 General Aerial Map Form Review Inbox Reviewed By Date Len Linton Len Linton 09/11/2014 03:00 PM Grant Riemer Grant Riemer 09/11/2014 03:14 PM Kurt Ulrich MaryJo Warner 09/11/2014 03:15 PM Form Started By: Bruce Westby Started On: 09/05/2014 07:01 AM Final Approval Date: 09/11/2014