SIOUX FALLS (KELO AM) - The City of Sioux Falls performs silt and sediment removal in drainageways, river channels, and ponds each year to improve capacity in the drainage system.
A majority of the work performed in drainage areas is done during the winter months, which allows City crews to maximize their efforts without the possibility of a rain event flooding the work area. The frozen ground provides a stable surface for heavy equipment and trucks to access the sites and remove the excess material. In cases where the project scope is large, the City may contract the work out to a third party that can dedicate additional resources to the project.
The City works annually to ensure drainage systems are functioning at their highest capacity. Some interesting facts regarding this maintenance activity include:
● 13,700 tons of silt removed annually from the river channel in the City’s levee system
● 11,500 tons of silt and debris removed annually from drainage channels and ponds
● 10,500 tons of material removed annually from streets through street sweeping
“It is important that we keep our channels, ponds, and rivers operating at their highest capacity to help protect private property during large storm events,” says Andy Berg, Principal Drainage Engineer.
For more information regarding the City’s drainage system, call the Public Works Engineering Division at 605-367-8601.