Arizona Department of Transportation issued the following announcement on Oct. 28.
All ramps and frontage roads linking Interstate 10 to Ruthrauff Road/El Camino del Cerro are now fully open to traffic as the Arizona Department of Transportation has completed a major interchange reconstruction project in northwest Tucson.
The larger, modern interchange provides more traffic lanes to reduce delays while improving safety by eliminating the need for drivers to wait up to 40 times a day for trains passing through this busy area of Tucson.
ADOT began the $129 million project in January 2020 and completed work ahead of schedule. The project’s major improvements include:
- Widening I-10 from three to four lanes in each direction
- Switching the interchange configuration with new bridges that carry Ruthrauff Road/El Camino del Cerro over I-10 and the Union Pacific Railroad tracks, which eliminates an at-grade crossing and frequent delays
- Widening Ruthrauff/El Camino del Cerro at I-10. The new structure features two lanes in each direction for Ruthrauff/El Camino del Cerro and a pair of dual left-turn bays.
- Constructing an underpass to carry Davis Avenue/Highway Drive under Ruthrauff Road, with traffic using local roads and the newly-constructed Maryvale Avenue and Chester Way to connect with Ruthrauff Road
While crews have completed all major construction, drivers may notice several weeks of minor work and occasional traffic restrictions.
The project is part of the Regional Transportation Authority’s roadway improvement plan, managed by the Pima Association of Governments. It is ADOT’s fourth recent major I-10 traffic interchange project in Pima County that allows drivers to cross I-10 without waiting for trains, following similar projects at Prince Road, Twin Peaks and Ina Road.
ADOT’s other current Tucson-area interchange project at I-10 and Houghton Road is also nearing completion. The $24.4 million project is expected to wrap up by the end of 2021.
Original source can be found here.