The Arizona Department of Transportation will close both directions of Interstate 10 east of Tucson and west of Benson from 9 p.m. April 8 until 7 a.m. April 9 to provide a safe work zone for the removal of the old Marsh Station Bridge.
The closure will take place between State Route 83 east of Tucson (exit 281) and SR 90 near Benson (exit 302) to allow crews to remove the bridge.
During the demolition project, motorists will be guided by signs through a 67-mile detour around the closure. Drivers can expect up to two hours of additional travel time. ADOT strongly advises avoiding this segment of I-10 during the closure.
Detour for eastbound I-10
Eastbound I-10 traffic will detour to SR 83 (exit 281), travel south to SR 82 in Sonoita, turn left (east) on SR 82 to the SR 90 intersection, turn left (north) onto SR 90 and follow signs to reconnect with I-10 near Benson (exit 302).
Detour for westbound I-10
Westbound I-10 traffic will detour from the interstate at SR 90 (exit 302), travel south to the SR 82 intersection, turn right (west) on SR 82 and travel to SR 83 in Sonoita, turn right (north) on SR 83 to reconnect with I-10 at exit 281.
Residents in the area along I-10 between SR 90 to SR 83
Westbound I-10: Residents can access westbound I-10 and exit at Marsh Station Road to access I-10 at the I-10/SR 83 traffic interchange.
Eastbound I-10: Open to residents. Access will be provided at SR 83 and the Marsh Station frontage road. Residents will then be able to enter eastbound I-10 from the Marsh Station traffic interchange. Please note that once residents pass SR 90 heading eastbound on I-10, they will need to use the detour if they wish to travel back westbound along I-10.
Those traveling along I-10 from far eastern Arizona or New Mexico and going to the Phoenix area may want to consider taking US 191 to US 70 to US 60 as an alternate route.
The demolition and removal of this bridge is part of a $10 million American Recovery and Reinvestment Act project and ADOT’s continued investment in Arizona’s interstate highway system. The project includes the new Marsh Station traffic interchange, the extension of Marsh Station Road, drainage improvements and the realignment of approximately three miles of the Union Pacific Railroad line to the north of I-10.
ADOT advises drivers to proceed through the work zone and detours with caution, slow down, and be alert for construction equipment and personnel.
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 at www.az511.gov or call 5-1-1.