Interstate 240 forms a southerly bypass of central Oklahoma City for I-40 west to El Reno and east to Shawnee. The freeway also provides connectivity with Interstate 44 leading southwest to Lawton and I-35 south to Dallas. I-240 serves commuters to Tinker Air Force Base, Will Rogers World Airport (OKC) and the south suburbs including Moore.
The agenda for the August 2, 2021 Oklahoma Transportation Commission Meeting included a spate of state highway system numbering revisions. Among the approvals, designating Interstate 240 in place of SH 152 for 4.8 miles between I-44 and the John Kilpatrick Turnpike in Oklahoma City. I-240 was also added along 30.97 miles of the John Kilpatrick Turnpike to Northwest Oklahoma City and I-35/44 near Arcadia Lake, and along the Kickapoo Turnpike for 18.71 miles between I-40 near Newalla in eastern Oklahoma City and I-44 (Turner Turnpike) at Luther.
A 1.4 mile long overlap with I-44 will link the SH 152 segment and the current west end of I-240. Overlaps will also include 13.7 miles along the I-44 (Turner Turnpike) and 5.81 miles along I-40 to link the various segments, forming a 93 mile long loop.
This item is necessitated to give the traveling public a more definitive loop to follow around the Greater Oklahoma City Area and to better identify the un-numbered Turnpikes.
Although approved by the State Transportation Commission, the changes require approval from the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO). Pending concurrence by the FHWA. AASHTO subsequently approved the 75.48 mile long extension of I-240 at the Fall 2021 Route Numbering Committee Meeting.
Crossroads Renewal 240
Started in June 2016, the Crossroads Renewal 240 interchange project upgrades the cloverleaf joining I-240 and I-35 into a multi level exchange. The four phase project runs through
2023 2026 2028. Completed in May 2017, Phase 1 work reconstructed the Southwest Expressway east from Santa Fe Avenue (Exit 3B) to past Shields Boulevard. The $12 million phase included interim ramp changes at Shields Boulevard.
Phase 1A rebuilt the frontage road along the southwest quadrant of the exchange joining I-35 and I-240. It also permanently closed the entrance ramp to I-240 east from Shields Boulevard and the southbound off-ramp from I-35 to SE 82nd Street. Started in June 2017, the $10.6 million project was completed in Summer 2018. Redesigning the remaining frontage roads, Phase 1B was planned for fiscal year 2021.
Phase 2 will construct the flyovers from I-35 north to I-240 west and from I-35 south to I-240 east. It will also replace the eastbound span for Interstate 240 over I-35. Phase 3 will complete work along Interstate 240 east between Shields Boulevard and Eastern Avenue, while Phase 4 upgrades the westbound direction along the same stretch. Phase 4 also includes work on a new bridge for I-240 over I-35. Estimated to cost $90.64 million, Phases 2, 3 and 4 are scheduled for fiscal year 2023 in the ODOT Eight year Construction Work Plan.