Arizona DOT

Three of the state's major freeway and highway projects have earned regional awards in a national transportation competition that focuses on efforts to strengthen communities, improve the quality of life and foster a more efficient economy. The American Association of State Highway and Transportation Officials (AASHTO) announced the Arizona Department of Transportation projects, including the new Loop 202 South Mountain Freeway in the Phoenix area, have won first place awards in the organization's west region.

Using an innovative bridge slide technique that accomplishes in days what ordinarily would take months, construction crews have placed a new Fourth Street bridge over Interstate 40 in Flagstaff. The new, wider bridge will improve traffic flow and have a dedicated path for bicycles and pedestrians connecting the Flagstaff Urban Trail System across the interstate.

A partnership with the U.S. Geological Survey's Arizona Water Science Center is helping Arizona Department of Transportation engineers anticipate the effects of extreme weather on bridges and highways and design ways to handle it. Since its start in 2014, this collaboration has evolved to improve ADOT's use data involving flooding, natural hazards and weather-related risks through the agency's Resilience Program.

Gov. Doug Ducey and state, local and federal officials recently broke ground on a $134 million project to improve mobility and safety on a 3.75-mi. Nogales highway. The project, once completed, will help increase international trade coming through Nogales by linking the Mariposa Port of Entry and Interstate 19.

As part of a regional analysis of Phoenix-area freeway pavements, a stretch of the Loop 101 Price Freeway in the southeast Valley will undergo a specialized concrete smoothing process in the coming months. The diamond grinding, which began in early May, involves the use of machines with diamond-tipped blades on rotating drums to smooth a freeway's existing concrete pavement while also creating grooves designed to limit vehicle tire noise.

Bridges in Arizona have been ranked among the best in the nation in an annual survey conducted by the American Road and Transportation Builders Association (ARTBA). The organization's report found that only 1.6 percent of bridges across The Grand Canyon State were listed in poor condition, which means the state was just behind Nev.

The Arizona Department of Transportation is accelerating a project to widen and improve the Interstate 17 bridge over McConnell Drive entering Flagstaff by closing McConnell Drive until early May, followed by other restrictions through mid-August. McConnell Drive is scheduled to be closed around the clock from now through Friday, May 1.

The Arizona Department of Transportation has completed freeway-improvement work to enhance safety and provide more room for drivers who use westbound Interstate 10 west of downtown Phoenix. The new I-10 lane project added a new right lane along westbound I-10 between 27th and 43rd avenues, west of the I-17 "stack" interchange, as part of $10 million in improvements that started in January 2019.

Phoenix (AP) — Transportation planners are spreading the word that the start of a multiyear project to rebuild a critical freeway corridor in the heart of the Phoenix metro area is only about a year off. The project includes adding traffic lanes and building new bridges on parts of an 11mi.

ADOT has hosted many sessions of its Construction Academy during the past six years. But the latest one held at the beginning of March in Phoenix was still a momentous first. That's because all the participants in this academy, which ran from March 2 to 13, were women.

After spending time in temporary nurseries, more than 1,000 saguaro cactuses, palo verde trees and other native plants removed from the path of the Loop 202 South Mountain Freeway are now being used to grace the 22-mile corridor. Other plants salvaged and being replanted for the Arizona Department of Transportation's largest-ever highway project include ironwood and mesquite trees, as well as ocotillo and barrel cactuses.