2017 Public Works Department Annual Report

Home Browse Search

2017 Annual Report • Public Works Department • St. Anthony Village, Minnesota 8 IV. Flood Reduction Improvements The City has identified several areas that have the need for increased levels of flood protection. The City has completed the improvements for many of these locations, yet there still remain a few projects that are being addressed as financing and adjacent infrastructure is upgraded. In December 2016, the City along with the Rice Creek Watershed District began construction of the Mirror Lake Stormwater Quality Improvements Project with completion scheduled for the spring of 2018. Mirror Lake Due to the warm weather in the winter of 2016-2017, the contractor was unable to complete the lake excavation. Upon returning to the site in January 2018, the contractor completed the lake excavation, removed and replaced the outlet control structure, and rough graded the berm. The contractor will complete the final grading and restoration of the disturbed soils in the late spring/early summer of 2018. The contractor will also perform maintenance as needed on the vegetation and trees planted in 2017. The goal of the project is to remove several feet of nutrient rich sediment that is very high in phosphorus, provide additional removal of nutrients to incoming stormwater, and to increase the available storage for flood water within Mirror Lake. The project will provide improved pollutant removals, reduce nutrient transport downstream to Long Lake, and reduce downstream local flooding.