Lane restrictions June 20-25 for Perrine Bridge and Glenns Ferry Bridges

TWIN FALLS – Lane restrictions on Perrine Bridge and Glenns Ferry Bridges are scheduled for June 20-25. Drivers can expect traffic delays across the bridges while Idaho Transportation Department (ITD) crews conduct routine bridge inspections.

Glenns Ferry Bridges

June 20-23 from 7 a.m. to 7 p.m.

Traffic on both east- and westbound bridges at milepost 121.6 on Interstate 84 will be reduced to one lane in either direction when crews begin work on the eastbound bridge with an 11-ft width lane restriction starting Tuesday, June 20 from 7 a.m. to 7 p.m. Westbound right-lane closure will begin when eastbound work is completed.

Perrine Bridge

June 24-25 from 5 a.m. to 3 p.m.

Traffic will be reduced to one lane in either direction while crews move from the south end of the bridge to the north end with an 11-ft width lane restriction:

– Southbound right lane closure: Saturday, June 24 from 5 a.m. to 3 p.m.

– Northbound right lane closure: Sunday, June 25 from 5 a.m. to 3 p.m.

“These special bridge inspections only take a couple of days to accomplish, while routine inspections take a week or more and both are important to ensure the safety and longevity of our state bridges,” said ITD Bridge Inspector Amy Bower.

ITD, Idaho State Police, and local law enforcement caution motorists to slow down and pay attention when driving in work zones, where increased speeding fines and other penalties apply. Motorists are encouraged to plan ahead and dial 5-1-1 or visit for information on the state highway or interstate system.

Perrine Bridge inspection to begin this week near Twin Falls

Image of the Perrine Bridge near Twin Falls

Dependent on weather, crews are expected to begin a week-long inspection of the Perrine Bridge starting Friday, January 7. During the inspection, crews will walk the arch, use an unmanned aerial vehicle (UAV) and deploy ITD’s under-bridge inspection truck (UBIT) along the bridge deck.

Short duration (15 minute) single lane closures will occur each day in the left northbound lane to allow workers to access and exit the lower half of the structure. Traffic will also be reduced to one lane in either direction Jan. 7 and Jan. 8 while crew members utilize the inspection truck.

Work with the UBIT will occur during non-peak hours to help lessen traffic congestion through the area and is expected to follow the below schedule:

– Northbound Right Lane Closure: Jan. 7 from 9 a.m. to 3 p.m.
– Southbound Right Lane Closure: Jan. 8 from 9 a.m. to 3 p.m.

Drivers may consider using an alternate route between the hours listed above.

In addition to traffic impacts, base jumping may be subject to restrictions during portions of the inspection. ITD will provide personnel to coordinate with inspection crews and jumpers during regulated periods.

“The Perrine Bridge is a vital structure in the region and serves as a connector for thousands of motorists each day,” said ITD Bridge Inspector Amy Bower. “Inspections and routine maintenance projects play an important role in ensuring the bridge’s longevity for many years to come.”

Drivers are urged to exercise caution and patience near the work zone and watch for crew members and equipment. ITD appreciates the cooperation of those driving through the area.