Interstate 235 (Oklahoma)

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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
NHSEntire route
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
CountryUnited States
StateOklahoma
CountiesOklahoma
Highway system
  • Oklahoma State Highway System
SH-209 I-240

Interstate 235 (I-235) in Oklahoma is also known as the Centennial Expressway or the I-235 Central Expressway. The spur route of I-35 is a 5.4-mile-long (8.7 km) north–south alignment in central and north-central Oklahoma City. It connects northbound to U.S. Highway 77 (US-77) to suburban Edmond and southbound at I-44 on to I-35 and the I-40 Crosstown Expressway near downtown Oklahoma City. US-77 is concurrent with I-235 for the entire route. South of its junction with I-40, I-235 becomes I-35.

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. The exit has since been reconfigured.

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.[5] Only 3.66 miles (5.89 km) were complete in 1978.[6] It finally opened in 1989.

Beginning in the mid-1990s, a massive Capital Improvement Project program was started to widen and reconstruct US-77 between Edmond on the Broadway Extension and the North 36th Street exit on I-235. The project included widening to six or eight lanes, reconfiguring several interchanges, and installing a new BNSF Railway bridge over I-235.[7]

The interchange with I-44/SH-66 was reconstructed from a cloverleaf interchange to a four-level interchange that eliminated two cloverleaf ramps. The other two cloverleafs were widened and reconstructed and two new flyover ramps were added. The four-level interchange is the first of its kind in Oklahoma. The $105 million project lasted three years and was opened on March 3, 2022.[8] An additional $16 million is being provided to reconstruct the I-44 to US-77 ramp and provide a direct connection to North Lincoln Boulevard. The project is expected to be started in 2023.[7]

Exit list

The entire route is in Oklahoma City, Oklahoma County.

mikmExitDestinationsNotes
0.000.00


I-35 south / US 77 south / US 62 west – Dallas
Southern 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. Smith
Southbound 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
2.323.732N. 23rd Street / Santa Fe AvenueNorthbound exit and southbound entrance
2.644.252N. 23rd Street / Broadway Avenue – State CapitolSouthbound exit and northbound entrance
3.535.683N. 36th Street
5.058.134 I-44 (SH-66) / Santa Fe Avenue / N. 50th Street – Lawton, TulsaSigned as exits 4A (west) and 4B (east); exits unnumbered southbound; I-44 west exit 127, east exits 127A-B; northbound exit and southbound entrance
5.368.63
US 77 north – Edmond
Northern terminus; northern end of US-77 concurrency
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. ^ 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.
  6. ^ Interstate System Route Log and Finder List. Federal Highway Administration. March 1978.
  7. ^ a b "Motorists now 'On Broadway' after I-235/I-44 opening celebration". Oklahoma Department of Transportation. Retrieved 14 March 2023."OFF Broadway and I-235". Oklahoma Department of Transportation. Retrieved 14 March 2023."I-235 Broadway Extension Corridor Widening and I-44 Interchange". Haskell Company. Retrieved 14 March 2023."Oklahoma opens four-level I-235/I-44 interchange". Equipment World. 10 March 2022. Retrieved 14 March 2023.
  8. ^ Ogle, Abigail (4 March 2022). "Oklahoma opens state's first four-level highway". KOCO. Retrieved 14 March 2023.

External links