Tag: Arizona Department of Transportation

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New $1.7B Ariz. freeway includes half diverging diamond, double roundabout

(Arizona DOT note: Since the release of this video in January 2017, the Dobbins Road interchange has been redesigned. The freeway will now go over Dobbins Road. ) Along with being the largest freeway construction project in Arizona history, the new 22-mile South Mountain Freeway around southwest Phoenix incorporates some interesting features, including a double […]

January 2, 2020

Roadbuilding

Arizona DOT saves on I-40 closures by sliding replacement bridges into place

ADOT credits the procedure, known as value engineering, with cutting the road closure time from the standard six to eight months to just nine days.

November 21, 2019

Roadbuilding

Ariz. South Mountain Freeway could open three years early and under budget

The South Mountain Freeway could open ahead of schedule in December 2019 and under budget at a total cost of $1.7 billion, KTAR News reports. The South Mountain Freeway (Loop 202) will add 22 miles of freeway to the existing transportation system in the Phoenix metropolitan area to connect the east and west valley, while providing […]

March 7, 2019

Roadbuilding

Ariz. DOT South Mountain Freeway extension 2/3 complete

According to the Arizona Dept. of Transportation, the Loop 202 South Mountain Freeway extension is nearly completely finished and is expected to open soon.

January 11, 2019

Roadbuilding

Ariz. DOT workshop focuses on bringing more women, minorities into construction

The Arizona Department of Transportation's construction academy seeks to bring more women and minorities into the construction industry. Learn more here.

December 5, 2018

Roadbuilding

Last girders set on 40-bridge project over Salt River are longest Ariz. DOT has ever used

The last girders, some of which are the longest ever used by the Ariz. DOT, have been set on the South Mountain Freeway over Salt River. Learn more here.

October 17, 2018

Roadbuilding

Ariz. DOT uses temporary bridge to keep I-10 open during bridge renovation

When work on the eastbound bridge is completed, eastbound traffic will return to using the regular bridge and westbound traffic will use the temporary bridge.,When work on the eastbound bridge is completed, eastbound traffic will return to using the regular bridge and westbound traffic will use the temporary bridge.,When work on the eastbound bridge is completed, eastbound traffic will return to using the regular bridge and westbound traffic will use the temporary bridge.

June 1, 2018

Roadbuilding

Program to train Mexican truck drivers reduces safety violations, Ariz. DOT says

Arizona transportation officials report that a new safety instruction program it provides to truck drivers in Mexico is leading to fewer safety violations at the state’s international ports of entry. “It’s a dramatic improvement that’s saving international carriers time and money, making Arizona roads safer and helping Arizona better appeal to drivers who might otherwise […]

February 1, 2018

Roadbuilding

After important documents blow away on interstate, trucker’s prayers are answered

After Texas truck driver Rafael Sanchez accidentally left his passport and other important documents on the side of his truck, then drove down an Arizona interstate, the chances of ever retrieving those blown-away papers seemed bleak. But Christmas came early for Sanchez. The story is best told in a blog by Tom Herrmann, a spokesman […]

January 12, 2018

Roadbuilding

New Arizona I-17 speed-limit signs alert speeding drivers

The Arizona Department of Transportation has gone digital with its speed-limit signs on Interstate 17 in the Black Canyon City area north of Phoenix. The signs not only give the speed limit but display whether drivers are exceeding the speed limit. The signs display messages such as “too fast” or “slow down.” The signs are […]

January 3, 2018

Roadbuilding

ADOT reduces speed on portion of I-40 after wrong asphalt mix applied

The Arizona Department of Transportation (ADOT) has reduced the speed limit on Interstate 40 between Parks and Bellemont from 75 to 55 miles per hour because of slick road conditions. According to the Arizona Daily Sun, the department released a statement saying that the slick road conditions were the result of the wrong asphalt mix […]

December 5, 2017

Roadbuilding

Signage continues thermal wrong-way detection installation in Ariz.

Signs are going up on Interstate 17 in Phoenix to alert drivers to the proper direction to drive. The overhead “Wrong Way” signs are part of a new system that would be the first in the nation to use thermal cameras to detect and warn wrong-way drivers.   Installation of the system began earlier this […]

November 27, 2017