Johnny Cake Ridge Road Phosphorus Reduction BMP Retrofit
The project involves installation of a number of stormwater best management practices in the road right-of-way and on adjacent public property during reconstruction of Johnny Cake Ridge Road and installation of the Dakota County North Creek Greenway. Practices implemented will include boulevard raingardens, tree trenches, and underground sediment collection practices. The project is anticipated to reduce phosphorus to Long Lake by 9 pounds per year, about 17% of the remaining watershed phosphorus load reduction needed to meet water quality goals of the Long and Farquar Lakes Nutrient Total Maximum Daily Load.
Projects and Practices 2019
Annie Felix-Gerth
for grants to protect and restore surface water and drinking water; to keep water on the land; to protect, enhance, and restore water quality in lakes, rivers, and streams; and to protect groundwater and drinking water, including feedlot water quality and subsurface sewage treatment system projects and stream bank, stream channel, shoreline restoration, and ravine stabilization projects. The projects must use practices demonstrated to be effective, be of long-lasting public benefit, include a match, and be consistent with total maximum daily load (TMDL) implementation plans, watershed restoration and protection strategies (WRAPS), or local water management plans or their equivalents. A portion of these funds may be used to seek administrative efficiencies through shared resources by multiple local governmental units.
P8 modeling from the 2017 Long and Farquar Lakes Implementation Plan Update estimates a phosphorus reduction of 8.9 lbs/yr to Long Lake and 29.7 lbs/yr to upstream ponds. P Reductions to Farquar Lake and stormwater volume reduction are also predicted
Installed 6 stormwater BMPs that provided 5.10 pounds/year of phosphorous reduction. The feasibility study for the project included a suite of smaller-scale BMPs, such as tree trenches in smaller infiltration areas, that were based on concept level ideas and were not feasible in the final design due to small right of way areas and utility conflicts or were cost-prohibitive to install.
LOCAL LEVERAGED FUNDS