Arizona DOT Prepares to Construct Flex Lanes, Widen Busy I-17 Close to Phoenix

Work is about to start subsequent yr on a three-year, $446 million widening of Interstate 17 north of Phoenix.

The challenge, which incorporates 15 miles of widening and eight miles of latest flex lanes, would alleviate congestion and enhance security, in response to the Arizona Division of Transportation. ADOT not too long ago awarded the contract to design, construct, function and keep the expanded roadway to a three way partnership of Kiewit Infrastructure West and Fann Contracting.

The DOT says the 23-mile part of I-17 between Anthem Method and Sundown Level carries 1 million vacationers a yr, with most site visitors on weekends. Together with highway widening and flex lanes, the challenge entails two bridge replacements, one bridge deck alternative and the widening of 10 bridges.

A map of the 23-mile challenge space to widen and add flex lanes to Interstate 17 between Phoenix and Flagstaff, Arizona.Arizona Division of TransportationThe eight miles of flex lanes can be used throughout peak journey instances and in emergencies. Drivers would move by way of a gate to enter the lanes, which might be separated from the primary freeway lanes by a concrete barrier. The two lanes, on a mountainous, curvy part between Black Canyon Metropolis and Sundown Level, would carry vacationers in a single route, with that route switching to accommodate site visitors wants.

For instance, says ADOT, the flex lanes would be capable to carry heavy northbound site visitors on a Friday or heavy southbound site visitors on a Sunday. They is also opened in an emergency.

I-17 at the moment has two lanes of journey in every route and offers a freeway connection between Phoenix and Flagstaff, from I-10 to I-40. The 15 miles of roadway between Anthem Method and Black Canyon Metropolis can be widened a further lane in every route to 4 lanes. Then from Black Canyon Metropolis to Sundown Level, the 2 separated flex lanes can be added to the southbound highway.

Right here’s a video rendering by ADOT of how the flex lanes would work: