Alternative 3 adds a full diamond interchange at I-35 and SH-74/Grant Street with both north and southbound I-35 on- and off-ramps. SH-74/Grant Street will be reconstructed with an added center turn lane between Green Avenue and Westbrook Boulevard to help accommodate traffic at the new ramps. Alternative 3 was selected from three design proposals presented for consideration.
During evaluation of the various design concepts and feedback from the public, ODOT and the city found that Alternative 3 best met the performance goals of improved emergency vehicle access, reduced emergency incident response time, improved connectivity to the regional transportation network, and accommodation of continued growth in Purcell.
The estimated $28-million construction project to build the new interchange is scheduled in ODOT’s Eight-Year Construction Work Plan to go to bid in Federal Fiscal Year 2025.
