U.S. Route 166 (US 166) is a east–west United States highway. This route and US 266 are the only two remaining spurs of historic U.S. Route 66 (which was decommissioned in 1985), since US 666 was renumbered to US 491 in 2003.

US 166 meets the old route of US 66, now designated US 69 Alternate, in Baxter Springs in the southeast corner of Kansas.

Route description

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Kansas

thumb|left|US-166's western terminus in [[South Haven, Kansas]]

thumb|right|US 166's eastern terminus approaching I-44 in [[Newton County, Missouri]]

US 166 is an east–west highway that meanders about along the Kansas–Oklahoma state line. The highway's western terminus is in South Haven, Kansas at an intersection with US 81, approximately north of the northern terminus of US 177. US 166's eastern terminus, which is also shared by US 400, is an intersection with I-44 just inside the Missouri state line, near the point where Kansas, Oklahoma, and Missouri meet, southwest of Joplin, Missouri near Loma Linda, MO.

About east from its intersection with US 81, the highway intersects with the Kansas Turnpike (I-35) at exit 4. Continuing east about , US 166 crosses the Arkansas River into Arkansas City, where it runs concurrently with US 77 for approximately , splitting off near Parkerfield.

Traveling east of Arkansas City, US 166 turns northeast, arcing above Cowley County Lake Dam and Cedar Vale. US. 166 crosses the Caney River approximately east of Chautauqua County Road 2. It turns south of Sedan approximately east of Chautauqua County Road 14. A business loop connects the main US 166 route with Sedan.

Continuing east from Sedan, about to Coffeyville, US 166 skims through Peru and Niotaze, US 166 crosses the Little Caney River 1.1 miles (1.77 km) to the east of Niotaze and proceeds east to the junction of US 75 near Havana. The two routes turn south for a concurrency. US 166 splits off just north of Caney turning east again through Tyro to Coffeyville. US 166 has a brief concurrency with US 169 beginning at the intersection of Walnut/Paterson Streets and Eleventh Street on the south side of downtown Coffeyville. The highway proceeds east on Eleventh Street, curves to the northeast and becomes Northeast Street. It then proceeds northeasterly past Walter Johnson Park and the Montgomery County Fairgrounds before it crosses the Verdigris River. US 166 will exit from US 169 east of the Verdigris River and proceeds east toward the town of Chetopa

US 166 runs eastward about from Coffeyville bypassing Edna and Bartlett. US 166 passes through Chetopa, where US 166 and US 59 travel concurrently from east of the BNSF Railroad overpass, and proceeds south on Eleventh Street, then turns to the east near the Chetopa ball field. US 166/US 59 will run concurrently along Maple Street into downtown Chetopa. US 59 will then break off on Third Street and proceeds south towards the Kansas-Oklahoma state linesouth of the intersection. Leaving Chetopa, US 166 crosses over the Neosho River and crosses US 69 Alternate, before Baxter Springs.

thumb|left|US 166 and US 400 at the terminus of K-26

Heading east from Baxter Springs, US 166 crosses the Spring River. Approximately later, US 166 intersects with US 400. US 166/US 400 then turn sharply southeast for to cross the Missouri state line approximately from the I-44 interchange.

Missouri

US 166's eastern terminus is its interchange with I-44, from the state line This request was approved by AASHTO in a meeting on April 10, 1994.

Special routes

Sedan business loop

Joplin

  • U.S. Route 166 Business – Joplin, Missouri (decommissioned)

Springfield

  • U.S. Route 166 Business – Springfield, Missouri (decommissioned)
  • U.S. Route 166 City - Springfield, Missouri (decommissioned)
  • U.S. Route 166 Truck - Springfield, Missouri (decommissioned)

See also

References

  • Endpoints of US highway 166