Interstate 235 (Oklahoma)

Interstate 235 (I-235) in Oklahoma is also known as the Centennial Expressway or the I-235 Central Expressway. The spur route of Interstate 35 is a 5.4-mile-long north–south alignment in central and north-central Oklahoma City. It connects northbound to U.S. Highway 77 to suburban Edmond and southbound at Interstate 44 on to Interstate 35 and the I-40 Crosstown Expressway near downtown Oklahoma City. U.S. Highway 77 is concurrent with I-235 for the entire route.[5] South of its junction with I-40, I-235 becomes Interstate 35.

Interstate 235
Centennial Expressway
I-235 highlighted in red
Route information
Auxiliary route of I-35
Maintained by ODOT
Length5.36 mi[1] (8.63 km)
Existed1989[2]–present
Major junctions
South end I-35 / I-40 / US 62 / US 77 / US 270 in Oklahoma City[3]
North end I-44 / US 77 / SH-66 in Oklahoma City[4]
Location
CountiesOklahoma
Highway system
Oklahoma State Highway System
← SH-209→ I-240

Route description
I-235 in Oklahoma City, concurrent with US-77
The northern end of I-235 at its interchange with I-44, the freeway however continues north into Edmond, Oklahoma as US-77, also known as the Broadway Extension

I-235's route forms the eastern edge of Automobile Alley, the Deep Deuce residential neighborhood, and the Bricktown Entertainment District, all of which are in the eastern section of downtown Oklahoma City.

History

The I-235 designation was approved by the American Association of State Highway and Transportation Officials (AASHTO) on July 13, 1976.[6] Only 3.66 miles (5.89 km) were complete in 1978.[7] It finally opened in 1989.[8]

Interstate 235 in Oklahoma officially finished a major reconstruction in September 2008, which changed the section of I-235 between N.W. 50th Street, on the north end, and N.W. 23rd, on the south end. It added a third lane and an exit lane in each direction, changing the four-lane stretch into eight lanes.

Exit list

The entire route is in Oklahoma City, Oklahoma County.

mikmExitDestinationsNotes
0.000.00 I-35 / US 77 south / US 62 west – DallasSouthern terminus; southern end of US-77 concurrency; I-35 exit 126, I-40 exit 151B
125COklahoma City BoulevardExit number based on I-35 mileposts; northbound left exit only; access to Downtown Oklahoma City
1A I-35 north / I-40 / US 62 east / US 270 east – Wichita, Ft. SmithSouthbound left exit and northbound entrance
1B I-40 / US 270 west – Amarillo
0.430.691CSheridan Avenue – DowntownNorthbound exit only
Oklahoma City BoulevardSouthbound exit only
0.651.051D Lincoln Boulevard – Oklahoma Health Center, State CapitolNorthbound exit and southbound entrance
1.131.821EHarrison Avenue / N. 10th StreetNo southbound exit; access to Oklahoma City National Memorial
1FN. 6th Street / Walnut AvenueNo northbound exit
1.402.251G N. 10th Street – Oklahoma Health CenterSouthbound exit and northbound entrance
2.323.732AN. 23rd Street / Santa Fe AvenueNorthbound exit and southbound entrance
2.644.252BN. 23rd Street / Broadway Avenue – State CapitolSouthbound exit and northbound entrance
3.535.683N. 36th Street
4.537.294ANW 50th StreetSouthbound entrance only; northbound exit and entrance closed, to be merged into I-44 exit (under construction)[9]
5.058.13— I-44 (SH-66) / US 77 north (Broadway Extension)Northern terminus; northern end of US-77 concurrency; I-44 west exit 127, east exits 127A-B; freeway continues as US-77 north (Broadway Extn.)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. "Route Log - Auxiliary Routes of the Eisenhower National System Of Interstate and Defense Highways - Table 2". Federal Highway Administration. Retrieved October 5, 2014.
  2. "I-235". Interstate Guide. Retrieved October 5, 2014.
  3. Google (July 9, 2010). "Interstate 235 (Oklahoma)" (Map). Google Maps. Google. Retrieved July 9, 2010.
  4. Google (June 7, 2008). "Interstate 235 (Oklahoma)" (Map). Google Maps. Google. Retrieved June 7, 2008.
  5. Stuve, Eric (February 14, 2004). "Interstate 235". OKHighways.com. Retrieved July 9, 2010.
  6. Rhodes, H. J. (July 15, 1976). "Letter to V. O. Bradley, Director of the Oklahoma State Highway Department" (PDF). American Association of State Highway and Transportation Officials. p. 8. Retrieved May 24, 2013.
  7. Interstate System Route Log and Finder List. Federal Highway Administration. March 1978.
  8. Oglesby, Scott. "3-digit Interstates from I-35". Kurumi. Retrieved January 29, 2005.
  9. "I-235/US-77 and I-44 (OFF Broadway 44)". Oklahoma Department of Transportation. April 8, 2018. Retrieved April 11, 2018.

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