U.S. 166/400 travel just 0.97 miles into Newton County, Missouri from east of Baxter Springs, Kansas. The pair enter a roundabout with Downstream Boulevard west and Greenwood Drive east midway between the state line and diamond interchange with Interstate 44. U.S. 166 travels 166 miles west from I-44 at Exit 1 to U.S. 81 at South Haven, Kansas. U.S. 400 runs 488 miles west from I-44 to Granada, Colorado.
Historically U.S. 166 extended east from Joplin to Springfield. Most of the route was upgraded to Interstate 44. U.S. 400 was established in 1994.
| U.S. 166/400 east expand to two lanes ahead of the roundabout with Greenwood Drive east and Downstream Boulevard west. Both lanes continue to Interstate 44. 05/04/12 |
| Downstream Boulevard provides the main access road to the Downstream Casino Resort. The complex lies just south of the Oklahoma state line nearby. 05/04/12 |
| Exiting the roundabout along U.S. 166/400 east. 05/04/12 |
| End shields are posted for both U.S. 166/400 ahead of the westbound entrance ramp to Interstate 44. 05/04/12 |
| U.S. 166/400 east default onto Interstate 44 east ahead of Joplin. I-44 west transitions into the tolled Will Rogers Turnpike en route to Tulsa, Oklahoma. 05/04/12 |
| U.S. 166/400 enter a roundabout with Downstream Boulevard west and Greenwood Drive east just beyond I-44. Costing nearly $1.9 million and paid for by the Quapaw Tribe, the roundabout was constructed over three months and completed by late June 2008 to service the Downstream Casino Resort.1 05/04/12 |
| Greenwood Drive is a local road leading east and then north from U.S. 166/400 to Apricot Drive, the former alignment of U.S. 166. 05/04/12 |
| U.S. 166/400 continue another 5.2 miles into Cherokee County, Kansas before splitting for Baxter Springs and Riverton respectively. 05/04/12 |
Page Updated 11-18-2013.