Agenda - Council - 11/14/2023 - Laserfiche WebLink

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5. 17. CC Regular Session Meeting Date: 11/14/2023 Primary Strategic Plan Initiative: Address infrastructure needs. Information Title Adopt Resolution#23-280 Ordering Plans and Specifications for 180th Lane Drainage Improvements, Improvement Project#24-04 Purpose/Background: Purpose: The purpose of this case is to adopt Resolution#23-280 ordering plans and specifications for 180th Lane Drainage Improvements, Improvement Project#24-04. Background: The property owners at 5725 180th Lane NW, Scott and Lisa Monserud,have concerns with stormwater runoff that backs up into their property from the drainage ditch in City right-of-way north of 180th Lane NW. They first shared these concerns with Staff during the design and construction of the 2019 City Improvement Proj ect#19-01, Ford Brook Estates Street Reconstructions, which addressed minor drainage improvements as part of the project. After the project was completed, Staff informed the property owners that if they wanted the City to address their drainage concerns in greater detail, Staff could explore drainage improvement options and present them to the Public Works Committee for consideration of further action. On September 19, 2023, Staff presented the attached to the Public Works Committee outlining drainage improvement options which would address the Monserud's concerns. The Committee directed Staff to develop preliminary design plans for drainage improvements providing positive drainage to prevent stormwater runoff from temporarily ponding on/near the Southeast corner of the Monserud's property,which can then back up into their yard through the existing swale. The Committee also directed Staff to explore providing an outlet for stormwater runoff that temporarily ponds West of Highway 47 on the East side of the property at 18013 Krypton Street NW in response to concerns previously raised by these property owners. The preliminary design proposed in the attached plan sheets includes constructing an underground storm sewer system North of 180 th Lane and West of Highway 47 to convey stormwater runoff collected within drainage ditches along both sides of 180th Lane and Krypton Street, and from the low-lying area partially within MnDOT right-of-way on the West side of Highway 47 and partially on the East side of the property at 18013 Krypton Street,to an outlet to the Ford Brook in the City of Nowthen. MnDOT's right-of-way along this segment of Highway 47 is 120 feet wide, so all storm sewer along Highway 47 can be constructed within MnDOT's right-of-way, and the low-lying area on the East side of 18013 Krypton Street that has an elevation of less than 884 as shown in the attached figure titled"Ford Brook Estates 2-Foot Contours" extends into MnDOT's right-of-way. To complete design and prepare final plans and specifications, additional topo survey and geotechnical evaluation work is required. Staff has received a proposal for topographic survey,which can be performed this fall, ideally before snow becomes a hindrance. Based on discussions with geotechnical engineering firms, the timeline for geotechnical work is several months out. Staff is proposing to obtain proposals for geotechnical evaluations in the coming months. To complete the project several permits are required, including a MnDOT right of way permit and a Lower Rum River WMO permit. Additionally,the City of Nowthen will need to be contacted to ensure they don't restrict such work within their City limits.