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State Highway 23
State Highway 23
Route information
	Maintained by ODOT
Length	36.2 mi (58.3 km)
Major junctions
South end	SH 23 at the Texas state line
	US 270 / US 412 / SH-3 at Elmwood; US 64 near Forgan;
North end	K-23 at the Kansas state line
Location
Country	United States
State	Oklahoma
Highway system
	Oklahoma State Highway System; Interstate; US; State; Turnpikes;

State Highway 23 (SH-23 or OK-23) is a state highway in Oklahoma. It runs 36.2 miles^[1] south-to-north through the center of Beaver County, in the Panhandle, running from the Texas state line to the Kansas state line.

There are no letter-suffixed spur highways branching from SH-23.

Route description

SH-23 begins at the Texas state line 3 miles (4.8 km) north of Booker, Texas. Upon entering Oklahoma, the highway makes a ninety degree turn to parallel the state line for approximately ½ mile (0.8 km), running just north of the line. It then turns back to the north and travels eight miles (13 km) due north to the intersection with US-270/US-412/SH-3, at the crossroads settlement of Elmwood. US-270 splits away from the other two highways at Elmwood, turning north to join SH-23.^[2]

A little over one mile (1.8 km) north of Elmwood. US-270/SH-23 cross over Clear Creek, a tributary of the North Canadian River. The two highways enter Beaver, the county seat of Beaver County, about 13 miles (21 km) north of Elmwood. Just north of Beaver, the highway crosses the Beaver River (another name for this portion of the North Canadian River). After crossing the river, US-270 and SH-23 pass through Beaver Dunes State Park.^[2]

Approximately six miles (10 km) north of Beaver, US-270 and SH-23 intersect US-64 and split up; US-270 turns west along US-64 towards Forgan, while SH-23 follows US-64 for about a mile eastbound. After splitting up, SH-23 turns due north, continuing to its terminus seven miles (11 km) later at the Kansas state line. North of the line it becomes K-23, which continues on to Meade, Kansas.^[2]

History

Prior to SH-23's establishment, the highway carried two designations—US-270 followed the same portion of the route that it does today, and a segment of SH-15 connected Elmwood to the Texas state line.^[3] (A connection with the current western terminus of SH-15 was made with what was then Farm to Market Road 1265^[4] to Booker and TX-117 back to Oklahoma.^[3]) The connection to Kansas north of US-64 did not exist as a state highway prior to 1957; it first appears on the 1958 state highway map, also signed as SH-15. The highway is not shown as overlapping US-64 and US-270 to Elmwood.^[5]

SH-23 is first shown replacing SH-15 on the 1959 map, implying the change took place in 1958.^[6] Again, SH-23 is not shown as overlapping US-270; it would not be shown as doing such until the 1975 edition.

K-23 was in existence as early as April 1940, shown with a spur ending north of the state line on Oklahoma's state map.^[7] On December 11, 1959, the Kansas and Oklahoma highway commissions held a joint meeting in Wichita, Kansas. At that meeting, the Kansas Highway Commission resolved to connect K-23 with OK-23 to establish a "route number...common to both states."^[8] K-23 was already shown on the Oklahoma highway map connecting to Oklahoma's SH-23 as early as the 1957 edition.^[9]

Similarly, the Texas Highway Commission ordered its State Highway 23 signed on January 25, 1959, alongside existing FM 1265. The highway, however, officially remained part of FM 1265 until December 18, 1990, when TX-23 was officially established and FM 1265 cancelled.^[4]

Junction list

County	Location	mi^[1]	km	Destinations	Notes
Texas–Oklahoma state line		0.0	0.0	SH 23 continues south into Texas
Beaver	Elmwood	8.4	13.5	US 270 / US 412 / SH-3	Southern end of US-270 concurrency
		28.7	46.2	US 64 / US 270	Northern end of US-270 concurrency, southern end of US-64 concurrency
		29.7	47.8	US 64	Northern end of US-64 concurrency
Oklahoma–Kansas state line		36.2	58.3	K-23 continues north into Kansas
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus

References

^ ^a ^b Stuve, Eric. "OK-23". OKHighways.com.^{[self-published source]}
^ ^a ^b ^c Oklahoma Atlas and Gazetteer (Map). 1:200,000. DeLorme. 2006. p. 17.
^ ^a ^b Highways of Oklahoma (PDF) (Map). Oklahoma Department of Highways. 1953. Retrieved February 25, 2010.
^ ^a ^b Transportation Planning and Programming Division (n.d.). "State Highway No. 23". Highway Designation Files. Texas Department of Transportation. Retrieved December 25, 2022.
^ 1958 Oklahoma Road Map (PDF) (Map). Oklahoma Department of Highways. Retrieved February 25, 2010.
^ 1959 Oklahoma Road Map (PDF) (Map). Oklahoma Department of Highways. Retrieved February 25, 2010.
^ Map Showing Condition of Improvement of the State Highway System (PDF) (Map) (April 1940 ed.). Oklahoma Department of Highways. Retrieved February 25, 2010.
^ Oklahoma Department of Highways. "Highway Routing and Numbering Notes From Joint Meeting, Oklahoma and Kansas Highway Commissions at Wichita, Kansas on Friday, December 11, 1959". US-56 Highway Commission Action 1 data, page 11. Accessed March 17, 2009.
^ Oklahoma's Highways 1957 (PDF) (Map). Oklahoma Department of Highways. Retrieved February 25, 2010.