City of Sioux Falls crews are digging into a project north of the airport where the Big Sioux River flows in the city. As the diversion dam holds back water, silt builds up in the river bed upstream ...

Jul. 24—Work began Friday to remove nearly 66,000 cubic yards of sediment situated at the confluence of the Yuba and Feather rivers and Yuba City boat ramp. The project, which covers an area of ...

The Altoona Water Authority has received permission from the state and the county to deposit silt from the basin of Bellwood reservoir on ground it owns nearby. The permits from the Department of ...