View source for U.S. Route 166

{{short description|Highway in the United States}}
{{Use mdy dates|date=September 2019}}
{{Infobox road
|country=USA
|type=US
|route=166
|map={{maplink-road|from=U.S. Route 166.map}}
|map_custom=yes
|map_notes=US&nbsp;166 highlighted in red
|maint=[[Kansas Department of Transportation|KDOT]] and [[Missouri Department of Transportation|MoDOT]]
|spur_type=US
|spur_of=66
|length_mi=164.159
|length_ref=
|established=1926
|direction_a=West
|terminus_a={{Jct|state=KS|US|81}} in [[South Haven, Kansas|South Haven, KS]]
|junction={{plainlist|
*{{Jct|state=KS|I|35|KSTP}} east of [[South Haven, Kansas|South Haven, KS]]
*{{jct|state=KS|US|77}} in [[Arkansas City, Kansas|Arkansas City, KS]]
*{{jct|state=KS|K|15}} in eastern [[Cowley County, Kansas|Cowley County, KS]]
*{{jct|state=KS|K|99}} south of [[Sedan, Kansas|Sedan, KS]]
*{{jct|state=KS|US|75}} north of [[Caney, Kansas|Caney]]
*{{jct|state=KS|US|169}} in [[Coffeyville, Kansas|Coffeyville, KS]]
*{{jct|state=KS|US|59}} in [[Chetopa, Kansas|Chetopa, KS]]
*{{jct|state=KS|US|69}} west of [[Baxter Springs, Kansas|Baxter Springs, KS]]
*{{jct|state=KS|US-Alt|69}} in Baxter Springs, KS
*{{jct|state=KS|US|400}} east of Baxter Springs, KS
}}
|direction_b=East
|terminus_b={{Jct|state=MO|I|44|US|400}} in [[Joplin, Missouri|Joplin, MO]]
|states=[[Kansas]], [[Missouri]]
|counties='''KS:''' [[Sumner County, Kansas|Sumner]], [[Cowley County, Kansas|Cowley]], [[Chautauqua County, Kansas|Chautauqua]], [[Montgomery County, Kansas|Montgomery]], [[Labette County, Kansas|Labette]], [[Cherokee County, Kansas|Cherokee]]<br>'''MO:''' [[Newton County, Missouri|Newton]]
|system1={{infobox road/browselinks/USA|state=KS}}
|system2={{infobox road/browselinks/USA|state=MO}}
|browse={{ks browse|previous_type=KS|previous_route=163|route=KS|next_type=KS|next_route=167}}
{{mo browse|previous_type=MO|previous_route=165|route=MO|next_type=MO|next_route=168}}
}}

'''U.S. Route 166''' ('''US&nbsp;166''') is a {{convert|164|mi|km|adj=on}} east–west [[United States highway]].  This route and [[U.S. Route 266|US 266]] are the only two remaining spurs of historic [[U.S. Route 66]] (which was decommissioned in 1985), since [[U.S. Route 666|US 666]] was renumbered to [[U.S. Route 491|US 491]] in 2003.

US 166 meets the old route of US 66, now designated [[U.S. Route 69 Alternate (Kansas)|US 69 Alternate]], in [[Baxter Springs, Kansas|Baxter Springs]] in the southeast corner of [[Kansas]].

==Route description==
{{Lengths table}}
|-
|KS||{{convert|163.223|mi|km|disp=table}}
|-
|MO||{{convert|0.936|mi|km|disp=table}}
|-
|Total||{{convert|164.159|mi|km|disp=table}}
|}

===Kansas===
[[File:Us166wend.jpg|thumb|left|US-166's western terminus in [[South Haven, Kansas]]]]
[[File:US-166 & 400 Terminus.jpg|thumb|right|US&nbsp;166's eastern terminus approaching I-44 in [[Newton County, Missouri]]]]
US&nbsp;166 is an east–west highway that meanders about {{convert|164|mi|km}} along the Kansas–Oklahoma state line. The highway's western terminus is in [[South Haven, Kansas]] at an intersection with [[U.S. Route 81 in Kansas|US 81]], approximately {{convert|1|mi|km|adj=on}} north of the northern terminus of [[U.S. Route 177 in Kansas|US 177]]. US&nbsp;166's eastern terminus, which is also shared by [[U.S. Route 400|US 400]], is an intersection with [[Interstate 44 in Missouri|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 {{convert|4|mi|km}} east from its intersection with US 81, the highway intersects with the [[Kansas Turnpike]] ([[Interstate 35 in Kansas|I-35]]) at exit 4. Continuing east about {{convert|16|mi|km}}, US 166 crosses the [[Arkansas River]] into [[Arkansas City, Kansas|Arkansas City]], where it [[Concurrency (road)|runs concurrently]] with [[U.S. Route 77 in Kansas|US 77]] for approximately {{convert|2|mi|km}}, splitting off near [[Parkerfield, Kansas|Parkerfield]].

Traveling {{convert|50|mi|km}} east of Arkansas City, US 166 turns northeast, arcing above Cowley County Lake Dam and [[Cedar Vale, Kansas|Cedar Vale]]. US. 166 crosses the Caney River approximately {{convert|0.5|mi|km}} east of Chautauqua County Road 2.  It turns south of [[Sedan, Kansas|Sedan]] approximately {{convert|0.6|mi|km}} east of Chautauqua County Road 14. A business loop connects the main US 166 route with Sedan.

Continuing east from Sedan, about {{convert|34|mi|km}} to [[Coffeyville, Kansas|Coffeyville]], US 166 skims through [[Peru, Kansas|Peru]] and [[Niotaze, Kansas|Niotaze]], US 166 crosses the Little Caney River 1.1 miles (1.77&nbsp;km) to the east of Niotaze and proceeds east to the junction of [[U.S. Route 75 in Kansas|US 75]] near [[Havana, Kansas|Havana]]. The two routes turn south for a {{convert|3|mi|km|adj=on}} concurrency. US 166 splits off just north of [[Caney, Kansas|Caney]] turning east again through [[Tyro, Kansas|Tyro]] to Coffeyville. US 166 has a brief concurrency with [[U.S. Route 169 in Kansas|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 {{convert|0.4|mi|km}} east of the Verdigris River and proceeds east toward the town of [[Chetopa, Kansas|Chetopa]]

US 166 runs eastward about {{convert|50|mi|km}} from Coffeyville bypassing [[Edna, Kansas|Edna]] and [[Bartlett, Kansas|Bartlett]]. US 166 passes through [[Chetopa, Kansas|Chetopa]], where US 166 and [[U.S. Route 59 in Kansas|US 59]] travel concurrently from {{convert|0.2|mi|km}} 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 [[U.S. Route 69 Alternate|US 69 Alternate]], {{convert|6|mi|km}} before Baxter Springs.

[[File:Us 166-400 jct k26.jpg|thumb|left|US 166 and US 400 at the terminus of K-26]]
Heading east from Baxter Springs, US 166 crosses the [[Spring River (Missouri)|Spring River]]. Approximately {{convert|2|mi|km}} later, US 166 intersects with [[U.S. Route 400 in Kansas|US 400]]. US 166/US 400 then turn sharply southeast for {{convert|6|mi|km}} to cross the Missouri state line approximately {{convert|1/2|mi|km}} from the I-44 interchange.

===Missouri===
US&nbsp;166's eastern terminus is its interchange with I-44, {{convert|0.6|mi|km}} from the state line<ref name="flex map"/> and about {{convert|1000|ft|m}} from the [[Oklahoma]]–Kansas–Missouri [[tripoint]].

==History==
[[File:Kansas us highway 1926.jpg|thumb|left|A map of Kansas's U.S. Highways as laid out in 1926]]
US&nbsp;166 is an original 1926 route and originally ran from South Haven to Baxter Springs, Kansas. In 1945, it was extended east through [[Joplin, Missouri]], where it paralleled [[U.S. Route 66 in Missouri|US&nbsp;66]] to [[Springfield, Missouri|Springfield]]. This extension absorbed '''Route 38''',{{Vague|date=July 2010}} which had been formed in 1922 from [[Carthage, Missouri|Carthage]] to west of Springfield and realigned to Joplin in about 1930, with the former route becoming [[Missouri Route 38N|Route 38N]] and soon [[U.S. Route 71 Alternate (Carthage, Missouri)|US&nbsp;71 Alternate]]. In 1966, following the completion of the last section of I-44 in Missouri, the east end of US&nbsp;166 was truncated back from Springfield to its current terminus. Most sections of US&nbsp;166 between Joplin and Springfield were not upgraded to Interstate Highway standards and were renumbered as I-44 Business Loops, state highways (such as [[Missouri Route 174|Route 174]]) or turned over to local or county jurisdiction.

In a resolution on December 22, 1993, KDOT approved and requested to realign US-166 south of Sedan, and to re-designate the former alignment as US-166 Business.<ref name=1993resolution>{{cite web |author = Kansas Department of Transportation |date = December 22, 1993 |url = https://dmsweb.ksdot.org/AppNetProd/docpop/pdfpop.aspx?KT142_0_0_0=003825787&clienttype=html&doctypeid=114 |title = Resolution to establish and redesignate segments of highways in Chautauqua County |location = Topeka |publisher = Kansas Department of Transportation |access-date = March 1, 2021}}</ref> This request was approved by AASHTO in a meeting on April 10, 1994.<ref name="1994 AASHTO"/>

==Major intersections==
{{jcttop|state_col=State|length_ref=<ref name="pmis">{{cite web|author=Kansas Department of Transportation|title=Pavement Management Information System|url=http://www.ksdot.org:9080/matreslab/pmis/query.asp|access-date=September 26, 2008|url-status=dead|archive-url=https://web.archive.org/web/20090430033400/http://www.ksdot.org:9080/matResLab/pmis/query.asp|archive-date=April 30, 2009}}</ref><ref name="flex map">{{MoDOT Flex|access-date=January 11, 2018}}</ref>}}
{{KSint
|sspan=19
|county=Sumner
|cspan=2
|location=none
|road={{jct|state=KS|US|81|city1=South Haven|city2=Wellington}}
|mile=0.000
|notes=Western terminus; road continues as 160th Street South
}}
{{KSint
|location=none
|road={{Jct|state=KS|I-Toll|35|KTA|city1=Wichita|location2=[[Oklahoma City]]}}
|mile=3.481
|notes=I-35/Kansas Tpke. exit 4
}}
{{KSint
|county=Cowley
|cspan=4
|location=Arkansas City
|lspan=2
|road={{jct|state=KS|US|77|dir1=south|name1=Summit Street south|location1=[[Ponca City, Oklahoma|Ponca City Ok.]]}}
|mile=20.540
|type=concur
|notes=Western end of US-77 concurrency}}
{{KSint
|road={{jct|state=KS|US|77|dir1=north|name1=Walnut Valley Green Way|road|Kansas Avenue|extra=hospital|city1=Winfield}}
|mile=22.993
|type=concur
|notes=Eastern end of US-77 concurrency; US-77 north serves [[List of hospitals in Kansas|South Central Kansas Medical Center]]}}
{{KSint
|location=none
|road={{jct|state=KS|K|15|dir1=north|city1=Dexter}}
|mile=40.883
|type=concur
|notes=Western end of K-15 concurrency}}
{{KSint
|location=none
|road={{jct|state=KS|K|15|dir1=south|location1=[[Shidler, Oklahoma|Shidler Ok.]]}}
|mile=44.833
|type=concur
|notes=Eastern end of K-15 concurrency}}
{{KSint
|county=Chautauqua
|cspan=2
|location=none
|road={{jct|state=KS|US-Bus|166|dab1=Sedan|dir1=east|city1=Sedan}}
|mile=66.984
|notes=Western terminus of US-166 Bus.
}}
{{KSint
|location=none
|road={{jct|state=KS|US-Bus|166|dab1=Sedan|dir1=west|KS|99|city1=Sedan|city2=Chautauqua}}
|mile=71.325
|notes=Eastern terminus of US-166 Bus.
}}
{{KSint
|county=Montgomery
|cspan=4
|location=none
|type=concur
|road={{jct|state=KS|US|75|dir1=north|city1=Independence}}
|mile=85.579
|notes=Western end of US-75 concurrency; interchange
}}
{{KSint
|type=concur
|location=none
|road={{jct|state=KS|US|75|dir1=south|name1=McGee Street|city1=Caney}}
|mile=88.577
|notes=Eastern end of US-75 concurrency}}
{{KSint
|type=concur
|location=Coffeyville
|road={{jct|state=KS|US|169|dir1=south|name1=Walnut Street|location1=[[Nowata, Oklahoma|Nowata Ok.]]}}
|mile=106.083
|notes=Western end of US-169 concurrency}}
{{KSint
|type=concur
|location=none
|road={{jct|state=KS|US|169|dir1=north|city1=Chanute}}
|mile=108.104
|notes=Eastern end of US-169 concurrency; interchange}}
{{KSint
|county=Labette
|cspan=3
|location=Edna
|road={{jct|state=KS|KS|101|dir1=north|name1=Delaware Street|city1=Edna}}
|mile=120.743
|notes=Southern terminus of K-101
}}
{{KSint
|location=Chetopa
|lspan=2
|road={{jct|state=KS|US|59|dir1=north|name1=Xavier Road}}
|type=concur
|mile=135.054
|notes=Western end of US-59 concurrency}}
{{KSint
|road={{jct|state=KS|US|59|dir1=south|name1=3rd Street}}
|type=concur
|mile=136.548
|notes=Eastern end of US-59 concurrency}}
{{KSint
|county=Cherokee
|cspan=4
|location=none
|road={{jct|state=KS|US|69|K|7|city1=Columbus|location2=[[Miami, Oklahoma|Miami Okla.]]}}
|mile=150.694
}}
{{KSint
|location=Baxter Springs
|road={{jct|state=KS|US-Alt|69|dab1=Baxter Springs|name1=Military Avenue}}
|mile=156.181
|notes=Former [[U.S. Route 66 in Kansas|US-66]]
}}
{{KSint
|location=none
|road={{jct|state=KS|US|400|dir1=west|city1=Parsons}}
|mile=158.017
|type=concur
|notes=Western end of US-400 concurrency}}
{{KSint
|location=none
|road={{jct|state=KS|KS|26|dir1=north|city1=Galena}}
|mile=161.322
|notes=Southern terminus of K-26
}}
{{jctplace
|river=&nbsp;
|river_wide=yes
|mile=163.223
|mile2=0.000
|line=y
|place=Kansas–Missouri line
}}
{{MOint
|sspan=1
|county=Newton
|location=none
|type=concur
|road={{jct|state=MO|US|400|dir1=ends|I|44|location1=[[Tulsa, Oklahoma|Tulsa]]|city2=Springfield}}
|mile=0.406
|mile2=0.936
|notes=Eastern end of US 400 concurrency; I-44 exit 1; eastern termini of US&nbsp;166 and US&nbsp;400; eastbound access to S. Outer Road
}}
{{jctbtm|exit|keys=concur}}

==Special routes==
{{Expand section|talksection=Route Description|date=May 2017}}
===Sedan business loop===
{{Infobox road small
|state=KS
|type=US-Bus
|route=166
|established=April 10, 1994<ref name="1994 AASHTO">{{AASHTO minutes |year  = 1994A |access-date = March 1, 2021}}</ref>
|length_mi=7.378
|length_ref=<ref name="PMIS"/>
|location=[[Sedan, Kansas|Sedan]]
}}

'''U.S. Route 166 Business''' ('''US-166 Bus.''') is a {{convert|7.378|mi|km|-long|adj=mid}} business route of US-166 that serves the city of [[Sedan, Kansas|Sedan]]. US-166 Bus. begins at US-166 southwest of Sedan and begins travelling northeast. The highway soon crosses Middle Caney Creek and continues northeast. It then intersects K-99 and begins to follow it east. The two routes cross Deer Creek and then enters Sedan as Main Street. US-166 Business and K-99 then turn south onto School Street and soon exit the city. The two routes cross Middle Caney Creek once again as they continue south. After roughly {{convert|2.7|mi|km}}, US-166 Bus. intersects US-166 and ends, as K-99 continues south towards Chautauqua. In a December 22, 1993 resolution, KDOT approved and requested to realign US-166 south of Sedan, and to re-designate the former alignment as US-166 Business.<ref name=1993resolution/> This request was approved by AASHTO in an April 10, 1994 meeting.<ref name="1994 AASHTO"/>

'''Major intersections'''<br/>
{{Jcttop|state=KS|county=Chautauqua|length_ref=<ref name="PMIS">{{cite web |author=Staff |url=http://www.ksdot.org/matreslab/pmis/query.asp |title=Pavement Management Information System |publisher=Kansas Department of Transportation |year=2017 |accessdate=February 23, 2021 |archive-date=March 13, 2016 |archive-url=https://web.archive.org/web/20160313050055/http://ksdot.org/matreslab/pmis/query.asp |url-status=dead }}</ref>}}
{{KSint
|township=Belleville
|ctdab=Chautauqua
|mile=0.000
|road={{jct|state=KS|US|166|nolink1=yes}}
|notes=Western terminus
}}
{{KSint
|township=Sedan
|ctdab=Chautauqua
|mile=3.364
|type=concur
|road={{jct|state=KS|K|99|dir1=north|city1=Howard}}
|notes=Western end of K-99 overlap
}}
{{KSint
|township=Summit
|ctdab=Chautauqua
|mile=7.378
|type=concur
|road={{jct|state=KS|US|166|nolink1=yes|city1=Coffeyville|city2=Arkansas City}}<br/>{{jct|state=KS|K|99|dir1=south|city1=Chautauqua}}
|notes=Eastern terminus; eastern end of K-99 overlap
}}
{{jctbtm|keys=concur}}

===Joplin===
* [[U.S. Route 166 Business (Joplin, Missouri)|U.S. Route 166 Business]] – [[Joplin, Missouri]] ([[Decommissioned highway|decommissioned]])
===Springfield===
* [[U.S. Route 166 Business (Springfield, Missouri)|U.S. Route 166 Business]] – [[Springfield, Missouri]] (decommissioned)
* [[U.S. Route 166 City (Springfield, Missouri)|U.S. Route 166 City]] - Springfield, Missouri (decommissioned)
* [[U.S. Route 166 Truck (Springfield, Missouri)|U.S. Route 166 Truck]] - Springfield, Missouri (decommissioned)

==See also==
* {{Portal-inline|U.S. Roads}}

==References==
{{Reflist}}

==External links==
{{Attached KML|display=title,inline}}
* {{Commons category-inline}}
* [http://usends.com/166.html Endpoints of US highway 166]

{{US 66}}
{{Authority control}}

{{DEFAULTSORT:66-1}}
[[Category:United States Numbered Highway System]]
[[Category:U.S. Highways in Kansas]]
[[Category:U.S. Highways in Missouri]]
[[Category:U.S. Route 66|1]]
[[Category:Transportation in Sumner County, Kansas|U.S. Route 166]]
[[Category:Transportation in Cowley County, Kansas|U.S. Route 166]]
[[Category:Transportation in Chautauqua County, Kansas|U.S. Route 166]]
[[Category:Transportation in Montgomery County, Kansas|U.S. Route 166]]
[[Category:Transportation in Labette County, Kansas|U.S. Route 166]]
[[Category:Transportation in Cherokee County, Kansas|U.S. Route 166]]
[[Category:Transportation in Newton County, Missouri|U.S. Route 166]]