
Lakeville, MN – Channel & Stream Restoration
CHALLENGE
Channels and streams can face erosion, bank failures and stream function issues. Erosion and bank collapses increase sediment in the water, leading to water quality issues. Bank collapses also result in an over-widened system where too little water is spread out over too much area.
SOLUTION
Vegetation thinning reduces thick tree cover and removes undesirable vegetation species. This allows for more natural light and establishment of prairie grasses and shrubs to hold soil in place. Vegetative riprap involves excavating a bank, installing rock and vegetative elements, putting soil back over the bank and reseeding. Biodegradable netting is used to hold everything in place until vegetation is established. Grade control structures help control water flows and bioengineering practices assist in restabilizing banks.
OUTCOME
Water quality was improved in this area by lessening soil erosion into the stream or channel. This Moore project created a high quality, natural amenity for the nearby neighborhood. It also Improved habitat for aquatic biodiversity, stabilized the stream and lessened flood risk.