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City of Idaho Falls News

Posted on: October 4, 2023

City of Idaho Falls reopens major intersection

17th Street and Woodruff Ave Intersection Improvements

There will be less congestion and motorists will experience a smoother flow of traffic with the completion of the 17th Street and Woodruff Avenue intersection improvement project. 

All lanes of traffic will reopen tomorrow morning, Thursday, Oct. 5. 

Planning for the project began years ago, with meetings with property owners dating back to 2018.  Idaho Falls Public Works originally planned to start the work in the spring of 2022 but received no bids which pushed the project start date to April 2023. 17th Street and Woodruff Ave Intersection Improvements

“We knew this year’s construction season would be a challenging one with all of the improvements that needed to be completed between us, the Idaho Transportation Department, various utilities, and developers,” states Public Works Director, Chris Fredericksen. “There was significant coordination going on behind the scenes. We recognize and appreciate everyone’s efforts and great work, as well as our community’s patience with the impacts during construction. While we’re still finishing up a few city projects, we’re very pleased to say that the majority were finished either on time or very close to the anticipated completion dates,” adds Fredericksen.   

The improvements to the 17th and Woodruff intersection were necessary due to population growth resulting in the intersection operating at over capacity levels during peak hours, with motorists experiencing delays of more than 1.5 minutes. Forecasted traffic flow data showed a 30 percent increase in demand, resulting in a 2.5 to 4-minute delay by the year 2040 without intersection improvements.   

The improvements included an additional left turn lane and a dedicated right turn lane on each intersection approach, as well as updates to waterlines, curb, gutter, landscaping, and the traffic signal. Concrete medians were added to restrict left turns and reduce traffic accidents. Idaho Falls Power removed power poles and ran the existing fiber and power lines underground.   

To date, the total cost of the project approaches $7 million. Federal funding was used to complete this project. 17th Street and Woodruff Ave Intersection Improvements

BMPO Long-range Transportation Plans    

Interactive Construction Map

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Media Contact:   Kerry Hammon, Public Information Officer, Idaho Falls Fire Department and Idaho Falls Public Works, (208) 612-8122 or

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