The Omaha District of the U.S. Army Corps of Engineers (Corps) has received an application from Knife River for a Department of the Army permit pursuant to Section 404 of the Clean Water Act (33 U.S.C. §1344) and/or Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C. §403). The purpose of this public notice is to solicit comments from the public regarding the work: Provide aggregate resources to serve the construction needs of the Sioux Falls area through the expansion of a Sioux Quartzite quarry. The project would affect waters of the United States associated with Split Rock Creek. The project/review area is located between 259th Street and 260th Street east of 482nd Avenue in Section 23, Township 102 North, Range 48 West; at Latitude 43.621050 and Longitude -96.558249; in Corson, Minnehaha County, South Dakota.