US Army Corps of Engineers Kansas City District Section 404 Traditional Navigable Waters (TNWs) of the United States within the Kansas City District, Corps of Engineers Regulatory Boundary STATUS: Designation incomplete. List will be appended as additional TNWs are designated. Last Update: October 2007 Note: All Section 10 Navigable Waters of the United States are TNWs and are listed separately at: https://usace.contentdm.oclc.org/utils/getfile/collection/p16021coll11/id/2634 State of Missouri Harry S. Truman Lake – Multipurpose pool elevation plus 3 feet, elevation 709.0 feet MSL. http://www.nwk.usace.army.mil/Locations/District-Lakes/Harry-S-Truman-Lake/ Lake of the Ozarks - Within elevation 658.5 feet Union Electric datum. From lake mile 89.3 (Upper extent of Section 10 Waters) to Harry S. Truman Dam, both outlet and spillway channels, in the vicinity of Warsaw, in Benton County, Missouri. Marais des Cygnes River - From the confluence with the Little Osage/Marmaton Rivers in Bates and Vernon Counties, upstream to the Kansas state line in Bates County, Missouri. Nodaway River - Approximately 57 river miles from the confluence with the Missouri River to the Missouri- Iowa state line in Section 31, Township 67 north, Range 36 west, Nodaway County, Missouri. Osage River - From the Harry S. Truman Lake in St. Clair County upstream to the confluence of the Marais des Cygnes and Little Osage/Marmaton Rivers in Bates and Vernon Counties, Missouri. Platte River - From the confluence with the Missouri River upstream to the confluence with the 102 River in Section 16, Township 57 North, Range 34 West, Buchanan County, Missouri. The upstream point is located at approximately Latitude 39.752605 N, Longitude -94.730670 W. State of Kansas Arkansas River - From the Oklahoma state line in Cowley County, Kansas to the Colorado state line in Hamilton County, Kansas at approximate Latitude 38.029817 N, Longitude -102.044558 W. Big Blue River - From the confluence with the Kansas River upstream to the Nebraska state line at approximate Latitude 40.00105885 N, Longitude -96.60161357 W. Cottonwood River - From the confluence with the Neosho River upstream to the confluence with Doyle Creek at approximate Latitude 38.23938335 N, Longitude -96.91396668 W. Delaware River - From the confluence with the Kansas River upstream to the confluence with Grasshopper Creek at approximate Latitude 39.56261273 N, Longitude -95.53492821 W. Fall River - From the confluence with the Verdigris River upstream to the confluence with Otter Creek at approximate Latitude 37.7196301 N, Longitude -96.15852723 W. Little Arkansas River - From the confluence with the Arkansas River to the confluence with Turkey Creek at approximate Latitude 38.121681 N, Longitude -97.659472 W. Little Blue River - From the confluence with the Big Blue River upstream to the Nebraska state line at approximate Latitude 40.00161678 N, Longitude -97.01110148 W. Marais des Cygnes River - From the Missouri state line upstream to the confluence with Long Creek at approximate Latitude 38.52049275 N, Longitude -95.61061474 W. Neosho River - From the Oklahoma state line upstream to, and including Council Grove Lake, at approximate Latitude 38.73448035 N, Longitude -96.58845280 W. Ninnescah River - From the confluence with the Arkansas River to the upstream end of the named reach at approximate Latitude 37.56758996 N, Longitude -97.70495625 W. Republican River - From the confluence with the Kansas River upstream to the Nebraska state line at approximately Latitude 40.00219267 N, Longitude -98.08730471 W. Saline River - From the confluence with the Smoky Hill River upstream to the confluence with Wolf Creek at approximate Latitude 39.00365024 N, Longitude -98.42881981 W. Smoky Hill River - From the confluence with the Kansas River upstream to and including Kanopolis Lake to elevation 1466 feet MSL, at approximate Latitude 38.66614931 N, Longitude -98.16472781 W. Solomon River - From the confluence with the Smoky Hill River upstream to and including Waconda Lake to elevation 1455.6 feet MSL, at approximate Latitude 39.490719 N, Longitude -98.493372 W. Verdigris River - From the confluence with the Arkansas River upstream to the confluence with Dry Creek at approximate Latitude 37.85638361 N, Longitude -95.97771612 W. Wakarusa River - From the confluence with the Kansas River upstream to the confluence with Bury's Creek at approximate Latitude 38.88624287 N, Longitude -95.62924722 W. Walnut Creek - From the confluence with the Arkansas River upstream to the confluence with Dry Creek at approximate Latitude 38.460606 N, Longitude -99.018197 W. Walnut River - From the confluence with the Arkansas River upstream to the confluence with Whitewater River at approximate Latitude 37.65660219 N, Longitude -96.99055229 W. Whitewater River - From the confluence with the Walnut River upstream to the confluence with the West Branch Whitewater River at approximate Latitude 37.81417666 N, Longitude -97.02223782 W. Wilson Lake - Multipurpose pool plus 3 feet, elevation 1519 feet MSL. http://www.nwk.usace.army.mil/Locations/District-Lakes/Wilson-Lake/ .