State Highway 15 (abbreviated SH-15 or OK-15) is the name for two once-connected

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

s in

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

. One begins at the

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

state line and runs for 47.1 miles (75.8 km) through Woodward; the other runs for 62.4 miles (100.4 km) between

U.S. Highway 64 U.S. Route 64 (US 64) is an east–west United States highway that runs for 2,326 miles (3,743 km) from Nags Head in eastern North Carolina to just southwest of the Four Corners in northeast Arizona. The western terminus is at U.S. Route 1 ...

U.S. Highway 412 U.S. Route 412 is an east–west United States highway, first commissioned in 1982. U.S. 412 overlaps expressway-grade Cimarron Turnpike from Tulsa west to Interstate 35 and the Cherokee Turnpike from east of Chouteau, Oklahoma, to west of the ...

and

State Highway 18 Route 18, or Highway 18, may refer to: International * Asian Highway 18 * European route E18 * European route E018 Argentina * Australia * Waterfall Way Canada * Alberta Highway 18 * British Columbia Highway 18 * Manitoba Highway 18 * Ont ...

north of

Pawnee Pawnee initially refers to a Native American people and its language: * Pawnee people * Pawnee language Pawnee is also the name of several places in the United States: * Pawnee, Illinois * Pawnee, Kansas * Pawnee, Missouri * Pawnee City, Nebraska * ...

. SH-15 has no lettered spur routes.

Route descriptions

Western section

The western SH-15 begins at the Texas state line, connecting to Texas' State Highway 15 between Catesby and Shattuck. It runs east for seven miles (11.2 km) to US-283, which it overlaps into Shattuck. In Shattuck, SH-15 splits off to the northeast, heading through

Gage Gage may refer to: Measurement * Gage is a variant spelling of the word ''gauge'' *Stream gauge, aka Stream gage, a site along a stream where flow measurements are made People * Gage (surname) *Gage Golightly (born 1993), American actress Plac ...

and Fargo, before ending in Woodward.

Eastern section

The eastern SH-15 picks up a US-64/412 south of Garber, and begins

concurrent Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...

with State Highway 74 heading northbound. It splits from SH-74 to head through

Billings Billings is the largest city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Metrop ...

and has an interchange with

Interstate 35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexican border ...

at milemarker 203. It then has a five-mile (8.0 km) concurrency with U.S. Highway 77. After leaving US-77, it passes through Red Rock, and has a concurrency with US-177, and splits off just north of the intersection with the

Cimarron Turnpike The Cimarron Turnpike is a toll road in north-central Oklahoma. The route travels , from an interchange with Interstate 35 (I-35) north of Perry, to Westport, just west of Tulsa. The route also consists of a spur which runs from the mainl ...

. It bridges

Sooner Lake Sooner Lake is a reservoir in Pawnee and Noble counties in the U.S. state of Oklahoma. It was built in 1972 to serve as a reservoir of cooling water for a coal-fired power generation plant owned by Oklahoma Gas and Electric Company (OG&E). The pl ...

and runs for 15 more miles (24 more km) before ending at

north of Pawnee.

History

The two sections of SH-15 were once connected into one highway. However, when

was commissioned, the middle section of highway (from Woodward to Garber) was redesignated as US-412, and SH-15 decommissioned through that section.

Junction list

Western section

Eastern section

References

External links

{{Attached KML, display=title,inline
Western SH-15 at Roadklahoma

015 Fifteen or 15 may refer to: *15 (number), the natural number following 14 and preceding 16 *one of the years 15 BC, AD 15, 1915, 2015 Music *Fifteen (band), a punk rock band Albums * ''15'' (Buckcherry album), 2005 * ''15'' (Ani Lorak album ...

Transportation in Ellis County, Oklahoma Transportation in Woodward County, Oklahoma Transportation in Garfield County, Oklahoma Transportation in Noble County, Oklahoma Transportation in Pawnee County, Oklahoma