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McArthur Lake project moves forward

| April 18, 2024 1:00 AM

BONNERS FERRY — Work is moving forward on the U.S. 95 project near McArthur Lake.

As of April, Idaho Transportation Department officials said bridge abutments and the pier, which serve as foundations for the bridge itself, are nearing completion.

"Once these are finished the next step in construction of the two-span bridge will be placement of the steel girders, which are support beams that span between the abutments and the center pier and support the concrete driving surface above," Heather McDaniel, ITD public information officer, said.

A total of eight steel girders will be placed, four at each span, McDaniel said. The girders measure approximately 150 feet long, weigh approximately 69,000 pounds each, and will require the use of a large crane to lift and set them into place.

Starting Monday, April 22, crews will begin placing these beams, which will require intermittent lane reductions and closures on U.S. 95, allowing a safe space for workers and drivers alike. 

"The crane will be positioned near the inside lane of the shoofly where girders will be delivered, and then utilize the boom to pick the beams from the trucks and swing them into place," McDaniel said. "During the time that steel girders are being picked and guided through the air, traffic will be temporarily blocked in both directions."

To help prepare local commuters for upcoming traffic impacts, electronic signs near the work zone will be updated to provide specific date and time information for these closures. 

The most significant delays are anticipated April 24 and April 29 while girders are actively being picked and placed, McDaniel said.

"Drivers should pay attention to local signage and use the Idaho 511 system for updates," she added.

Work is scheduled to only occur during daytime hours and weekend closures are not anticipated at this time. This work is expected to last for approximately two weeks.