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May 26 2019
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Vol. III • No. 11
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ADOT Oversees $50M Project to Improve Interchanges By Cindy Riley CEG CORRESPONDENT
Described as a project that will help move people and products for decades to come, a $50 million undertaking to reconstruct two busy interchanges along Interstate 17 in north Phoenix, Ariz., is under way. The Arizona Department of Transportation (ADOT) is overseeing the work, which started in late November 2018. “The site has been in good condition, allowing for quick clearing and grubbing near both interchanges before earthwork began in January,” said ADOT spokesman
Doug Nintzel. “Initial work in December and early January allowed for clearing of some desert trees and shrubs that were part of previous landscaping at both interchanges.” The two new interchanges are under construction at Happy Valley Road and, a mile to the south, at Pinnacle Peak Road. The larger and more traveled of the two interchanges connects I-17 and Happy Valley Road. On the east side of the freeway is the Norterra shopping mall, as well as an insurance company’s regional headquarters complex. For the last two decades, the
ADOT photo
By mid-March, a new concrete box drainage culvert was installed beneath Pinnacle Peak Road, just to the east of I-17. Pinnacle Peak Road was closed in that area, as of mid-February.
Happy Valley Road interchange has featured two roundabouts. They are located on each end of a two-lane ADOT photo bridge traveling over I-17. According to Nintzel, Early construction efforts have focused on earthwork. Crews from FNF Construction, the primary contractor on the job, have been involved in “With limited funding at that “over excavation,” in order to stabilize ground north of the existing time, the roundabouts were Happy Valley Road bridge. selected in the late 1990s as a
way to still allow more lanes along a wider Happy Valley Road to transition onto an overpass, with one lane in each direction. Those roundabouts have gotten us this far. But more capacity is needed, and there’s now enough regional funding to build an interchange to meet future demands.”
Early construction efforts have focused on earthwork. Crews from FNF Construction, the primary contractor on the job, have been involved in “over excavation”, in order to stabilize ground north of the existing Happy Valley Road bridge. see ADOT page 6