Oklahoma State Highway 4

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State Highway 4

Route information
Maintained by ODOT OTA
History1941–present (western SH-4)[1]
1963–present (eastern SH-4)[2]
Section 1
Length37.3 mi (60.0 km)
South end US 62 / US 277 / SH-9 south of Newcastle
North endEdmond Road / NW 178th Street in Piedmont
Section 2
Length12.01 mi[3] (19.33 km)
West end US 259 in Smithville
East end AR 4 at the Arkansas state line
CountryUnited States
Highway system
  • Oklahoma State Highway System
SH-3 SH-5

State Highway 4, abbreviated as SH-4 or OK-4, is a designation for two distinct highways maintained by the U.S. state of Oklahoma. One of them serves as an important route through the suburbs west of Oklahoma City, while the other connects US-259 to the Arkansas state line west of Cove, Arkansas. SH-4 has no lettered spur routes.

The two SH-4s were never connected. The Central Oklahoma highway was established in 1941 and gradually extended to its present extent between then and 2003. The Eastern Oklahoma highway was originally numbered SH-21, and was renumbered to SH-4 in 1963.

Route description

Central Oklahoma

The northern end of SH-4 in Piedmont.

The western Highway 4 is 37.3 miles (60.0 km) long. It begins at the eastern terminus of the H.E. Bailey Turnpike Spur south of Newcastle. It is a two-lane road until it reaches SH-37, where it expands to four lanes. Seven miles (11 km) later, it joins with SH-152 in the town of Mustang.[4] One mile (1.6 km) later, SH-4 continues northward along Mustang Road toward Interstate 40 and Yukon.[4]

After crossing I-40, SH-4 becomes a two-lane road once again until entering Yukon, at which point it becomes a four-lane road again. It meets SH-66, once Route 66, in Yukon. Seven miles (11 km) later, it meets the Northwest Expressway (SH-3).[4] It lasts for just three miles (4.8 km) longer until ending at Edmond Road in Piedmont.[4]

Just after crossing SH-3, there is a standard distance sign listing Piedmont and "END OF ROUTE", giving the distance to the terminus of SH-4. This is a relative rarity on Oklahoma highways.

Eastern Oklahoma

The eastern Highway 4 is 12.01 miles (19.33 km) long.[3] It begins at US-259 and goes generally east–west, passing through the unincorporated communities of Smithville and Watson. After crossing the Arkansas state line, it becomes Highway 4.


Central Oklahoma

The western SH-4 was assigned in 1941 to a previously unnumbered roadway between Route 66 in Yukon and Piedmont.[1][5] A continuation of SH-4 east to North May Avenue in Oklahoma City along Ranchwood Boulevard and NW 10th Street had been designated as a farm-to-market road four years earlier.[6][7] In 1954, SH-4 was extended eastward along the farm-to-market road to a terminus at State Highway 3 and State Highway 74 (May Avenue) southwest of downtown Oklahoma City.[8][9]

SH-4 remained unchanged until 1979 when it was truncated to its former southern terminus at US-66 in Yukon.[10] The route was then extended to Mustang in 1982, following Ranchwood Boulevard and Mustang Road south to a new terminus at State Highway 152.[11] Construction on a southward extension of SH-4 to State Highway 37 near Tuttle began in 2001[12] and was completed a year later, as was a new segment between SH-37 and the H.E. Bailey Turnpike (Interstate 44).[13] SH-4 was originally signed only as far south as SH-37; the designation was extended south to I-44 in early 2003.

On August 9, 2021 the Oklahoma Transportation Commission voted to approve the addition of the State Highway 4 designation to the H.E. Bailey Spur.

Eastern Oklahoma

What is now the eastern SH-4 became part of State Highway 21 in 1927 when SH-21 was rerouted north of Bethel to follow modern US-259 and SH-4 to the Arkansas state line.[14][15] The SH-21 designation was removed in 1963 and replaced with SH-4 from Smithville east to the state line near Watson. Only minor realignments, such as the straightening of the roadway near Smithville and the replacement of a historic truss bridge by a modern span have occurred since.[2]

Junction list

Central Oklahoma

Grady0.000.00H.E. Bailey SpurBlanchard, NormanTolled; formerly a continuation east beyond southern terminus prior to 2021
I-44 (H.E. Bailey Turnpike) – Oklahoma City, Chickasha, LawtonSouthern terminus
CR 1226 westLast free junction southbound
Tuttle4.06.4 SH-37
SH-152 east
Southern terminus of SH-152 concurrency
SH-152 west
Northern terminus of SH-152 concurrency
Oklahoma City16.125.9 I-40 / US 270 – Amarillo, Oklahoma CityI-40 EB exit 138A, WB exit 139
SH-66 east (Main Street east)
Southern terminus of SH-66 concurrency
SH-66 west (Main Street west)
Northern terminus of SH-66 concurrency; Main St. is former US 66
Oklahoma City26.242.2 SH-3 (Northwest Expressway)
Piedmont29.547.5NW 178th Street / Edmond RoadNorthern terminus; road continues as Piedmont Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Eastern Oklahoma

The entire route is in McCurtain County. [16]

Smithville0.000.00 US 259Western terminus
AR 4 east
Continuation into Arkansas
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Map Showing Condition of Improvement of the State Highway System (PDF) (Map). Oklahoma Department of Highways. 1941. Retrieved 2007-12-07.
  2. ^ a b Oklahoma (PDF) (Map). Oklahoma Department of Highways. 1963. Retrieved 2007-12-07.
  3. ^ a b c Oklahoma Department of Transportation (n.d.). Control Section Maps: McCurtain County (PDF) (Map). Scale not given. Oklahoma City: Oklahoma Department of Transportation. Retrieved 2010-06-28.
  4. ^ a b c d Official State Map (PDF) (Map) (2009–10 ed.). Oklahoma Department of Transportation. Retrieved 2010-06-29.
  5. ^ Map Showing Condition of Improvement of the State Highway System (PDF) (Map). Oklahoma Department of Highways. 1940. Retrieved 2007-12-07.
  6. ^ Map Showing Condition of Improvement of the State Highway System and Landing Fields (PDF) (Map). Oklahoma Department of Highways. 1936. Retrieved 2007-12-07.
  7. ^ Map Showing Condition of Improvement of the State Highway System (PDF) (Map). Oklahoma Department of Highways. 1937. Retrieved 2007-12-07.
  8. ^ Highways of Oklahoma (PDF) (Map). Oklahoma Department of Highways. 1954. Retrieved 2007-12-07.
  9. ^ Highways of Oklahoma (back side) (PDF) (Map). Oklahoma Department of Highways. 1954. Retrieved 2007-12-07.
  10. ^ Official State Map (PDF) (Map). ODOT. 1979. Retrieved 2007-12-07.
  11. ^ Official State Map (PDF) (Map). ODOT. 1982. Retrieved 2007-12-07.
  12. ^ Official State Map (PDF) (Map) (2001-2002 ed.). ODOT. Retrieved 2007-12-07.
  13. ^ The Road Atlas - Large Scale - United States (Map). Rand McNally. 2002. p. 168. § G13.
  14. ^ Oklahoma State Highway System (PDF) (Map). Oklahoma Department of Highways. 1926. Retrieved 2007-12-07.
  15. ^ Oklahoma State Highway System (PDF) (Map). Oklahoma Department of Highways. 1927. Retrieved 2007-12-07.
  16. ^ Geography Division (2016). "Oklahoma Governmental Unit Reference Map". United States Census Bureau. Retrieved January 27, 2017.

External links