This project will create a high accuracy elevation dataset - critical for effectively planning and implementing water quality projects - for the state of Minnesota using LiDAR (Light Detection and Ranging) and geospatial mapping technologies. Although some areas of the state have been mapped previously, many counties remain unmapped or have insufficient or inadequate data. This multi-year project, to be completed in 2012, is a collaborative effort of Minnesota's Digital Elevation Committee and partners with county surveyors to ensure accuracy with ground-truthing.
Numerous studies have shown that stream bank erosion can be a significant contributor to the decline of water quality in the Rock River. The Clean Water dollars provided for this project assisted in three stream bank projects that address the turbidity (muddiness) impairment of the Rock River and bring the river closer to the level of water quality required for the EPA Clean Water Act.The $25,000.00 of Clean Water dollars were successful in leveraging $30,000 of US Fish and Wildlife funding as well as $20,000 of landowner and SWCD investment.
Sherburne County's Local Water Management Plan identifies eutrophication of lakes (heavy algae blooms) caused by excess phosphorus, loss of aquatic vegation, and loss of riparian vegetation. Removal of natural vegetation near the waters edge in developed and agricultural areas has caused loss of fish and wildlife habitat, increased runoff, and allowed bank erosion. The District will address sources of phosphorus and sediment for three important surface waters in the County. In all, phosphorus will be reduced by 355 pounds and sediment will be reduced by 400 tons per year.