A bridge replacement project on westbound Interstate 10 between Tucson and Benson will require a 67-mile detour overnight from 9 p.m. Wednesday, April 20, to 5 a.m. Thursday, April 21.
Westbound I-10 motorists traveling toward Tucson should expect up to two additional hours of travel time and consider avoiding the stretch if possible, according to the Arizona Department of Transportation.
Eastbound I-10 will remain open.
This is the third and final scheduled overnight closure to allow crews to replace the bridge at Davidson Canyon, between State Route 83 east of Tucson (Exit 281) and State Route 90 west of Benson (Exit 302).
The full westbound closure is needed to allow crews to pour the new bridge deck. Detour signs will guide westbound I-10 motorists south on SR 90 (Exit 302), west on SR 82 to Sonoita and north on SR 83 to reconnect with I-10 at Exit 281.
The $15.1 million improvement project includes replacing the bridge at Davidson Canyon, which was built in 1961 near milepost 285, and repaving three segments of I-10 totaling 17 miles between Tucson and Benson.
As part of the overall project, ADOT is currently repaving on-and off-ramps between Mescal Road/J-Six Ranch (Exit 297) and Empirita Road (Exit 292) and next month crews are expected to start the final paving with rubberized asphalt along the I-10 mainline.
Drivers should proceed through the work zone with caution, slow down and be alert for construction equipment and personnel.
For more information on the project, please visit azdot.gov/projects/south-central/i-10-quad-projects.
ADOT works to inform the public about planned highway restrictions, but there is a possibility that unscheduled closures or restrictions may occur. Weather can also affect a project schedule. To stay up to date with the latest highway conditions around the state, visit the ADOT Traveler Information Center ataz511.gov or call 511.