ADOT

Throwback Thursday

6/27/2019

Throwback Thursday: 90 years and a bottle of ginger ale

It was 90 years ago that Arizona dedicated Navajo Bridge spanning the Colorado River at Marble Canyon.

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Throwback Thursday

Bridges

Archive photo of helicoil traffic interchange

6/20/2019

Throwback Thursday: I-10's rejected helicoils

The Deck Park Tunnel has been a planned feature for Interstate 10 through Phoenix since the 1980s. But before that, concepts included something a little more interesting.

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Throwback Thursday

Video

Archive photo (1941) car at Fish Creek Canyon on the Apache Trail.

6/13/2019

Throwback Thursday: State Route 88

SR 88 is more than just the road to Canyon Lake. More than a century old, this curving highway was instrumental in the construction of Roosevelt Dam.

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Throwback Thursday

SR 88

Video

5/9/2019

Throwback Thursday: How I-17 came to be

Interstate 17, the Black Canyon Highway, was dedicated 55 years ago. Here's the story behind this important north-south link.

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Throwback Thursday

I-17

Archive photo of work on Sunset Point ramada

4/25/2019

Throwback Thursday: The dawning of Sunset Point

Sunset Point remains one of our most popular rest areas. And when we unveiled it nearly 50 years ago, it made a big impression countrywide.

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Throwback Thursday

Archive aerial photo of I-19 and Helmet Peak

4/4/2019

Throwback Thursday: Before the town

For today's Throwback Thursday, we have a little "remember when?" for people who live south of Tucson.

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Throwback Thursday

I-19

Archive photo of Elliot Road overpass over I-10.

3/28/2019

Throwback Thursday: A rural highway?

Interstate 10 Broadway Curve: Interstate 17 (Split) to Loop 202 (Santan Freeway) Do you recognize this stretch of highway from 1972? The answer might surprise you.

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Throwback Thursday

Drainage pipes installed during widening of SR 96

3/14/2019

TBT: More than a pipe dream on State Route 96

We are throwing back to a reconstruction project in the 1970s of one of the state's lesser-used highways.

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Throwback Thursday

Florence Daniels as she operates one of the new automatic-dial switchboards.

3/7/2019

TBT: The technology upgrades of yesteryear

Recently ADOT switched to using Google for our email services. While a big switch, it has nothing on two phone projects the agency took on in the late 70s and early 80s.

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Throwback Thursday