Maintaining Wetland Effectiveness
The Villa Park wetland is located within a public space in Roseville upstream of Lake McCarrons. The wetland includes a system of weirs, or low dams, to regulate water flow, designed to remove phosphorus and solids from stormwater before it enters Lake McCarrons. Since 2004, Capitol Region Watershed District (CRWD) and Ramsey County Public Works have monitored the system to measure its effectiveness. Because weirs impound water behind them and alter a wetland’s flow regime, they can affect the local ecology. After initial monitoring was completed in 2006, CRWD identified performance issues that needed to be addressed.