CCWMO FY25-27 WBIF Grants

This grant request combines four projects that cover multiple areas around Carver County. Below are recaps for each project.

Two ravine systems will have projects around Big Woods Lake in the City of Chaska. The first is a project to remove a pipe and naturalize a stream. This is in conjunction of the Lyman Bridge Project over a large ravine system in the City of Chaska, a 130-foot section of a stream that currently is piped would be daylighted and a more natural stream section would be constructed to help stabilize the ravine around the new bridge. The second project around Big Woods Lake is a ravine stabilization project on the east side of the lake. A feasibility study was completed last year on the design to stabilize this ravine. This project would hard armor the head cut into the ravine, reshape the channel bottom with three grade checks and slope grading.

The third project is located in Dahlgren Township along a section of Carver Creek adjacent to County Road 43 to help reduce shear stress at the toe of a 60-foot eroding bank that failed in 2012. A feasibility study was completed last year on options to stabilize this large bank failure. From this study, a project was identified that would move Carver Creek channel 50 feet south of its current location, building a floodplain at the base of the failed bank bluff to reduce the stress of flowing water at the basin of the bluff. Additional tile lines will be added to intercept ground water flow from further destabilizing the bank.

The final project is a feasibility study centered on Eagle Lake north of Norwood Young America. Eagle Lake has had high in-lake TP concentrations that are above the state standard with a large wetland complex on the south that may be contributing a large portion of soluble phosphorous. This study will be two pronged, one will study the potential for a n Alum treatment to control internal phosphorus release and the effects of managing curly leaf on internal TP loading. The second area of study will be identifying the amount of soluble phosphorus draining from the south wetland complex into the lake with potential solutions to limit the contribution to the lake.