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Freeway in the desert

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Joe Heller, our resident engineer on a big project getting underway in the North Valley, joins On the Road With ADOT this week to explain what's coming over the next two and a half years, including a flyover ramp connecting northbound I-17 with Loop 303.
A major component of the work will be building the direct ramps to create the freeway-to-freeway interchange. When completed over the next two-and-a-half years, drivers will skip the traffic signals at the current Loop 303/I-17 diamond interchange.
Engineers at ADOT play a vital role in building and maintaining Arizona’s roads. During National Engineers Week, Feb. 22-28, we’re celebrating engineers and the work they do to keep Arizona moving.

Popular blog articles

Many drivers got our message yesterday to Move Over, thanks, in part, to the local media …
There’s something really simple you can do to help prevent a serious danger out on our highways and roads – want to know what it is?
It would be an understatement to say that we’ve experienced a bit of a surge in our social media audience of late. Those of us who have spent the last few years working to build ADOT’s online network would love to believe that our spontaneous increase in viewers, followers and readers is due solely to our engaging content and commitment to transparency…
ADOT’s tentative Five-Year Construction Program is now online and available for your review and comments ...
After seeing the photos and video of US 89, it’s obvious that a lot of engineering brainpower will be needed to determine the cause of the landslide and what the possible long- and short-term options might be. Seeing the magnitude of the damage might also make you wonder about costs ...
Check out this video. Not only does it give an up-close look of what’s happening at the US 89 site, it also provides us with a few new, interesting geotechnical terms, including inclinometers, extensometers, LiDAR and DTM ...
Wow … we’ve certainly received a big response to all of the videos, Tweets, blog posts and news releases related to the closure of US 89 south of Page. A huge thank-you goes out to everyone who has helped us spread the word!
When engineers suspect a slope or embankment might be moving, they can use an inclinometer to see if their hunch is correct …
Guardrails. You see them all the time, right? But, how often do you really think about the important job they’re performing?
By now, many of you have probably already seen photos of US 89 … A 150-foot section of the road “buckled” yesterday morning (Feb. 20) in an area about 25 miles south of Page – the cause of the highway damage may have been a geologic event ...