Culvert Sizing on Judicial Ditch #1
This project will be implemented through a subwatershed design approach and is estimated to reduce 80 tons of sediment and 80 pounds of phosphorus per year.
This project resulted in the delineate of sub watersheds and a hydrologic model that was used to model the size of culverts and determine hydraulic impact of culvert sizing
The purpose of this project is reduce peak flows in the North Fork of the Crow River through culvert sizing. Culvert sizing will typically result in smaller culverts, which will provide short-term temporary storage within channels and on adjacent lands upstream from road crossings. In addition to reducing peak flow rates, flood damage and downstream erosion, increased sediment and nutrient removal through extended detention time is expected.