A study to assess the impacts of making improvements to Interstate 10 at the Broadway Curve –one of the most-heavily traveled sections of freeway in Arizona – is now available for public review and comment.

The Draft Environmental Assessment (EA) for 11 miles of Interstate 10 from the Interstate 17 Split (near 24th Street) to the Loop 202 (Santan Freeway) in Chandler is now online at the project website: http://azdot.gov/I10BroadwayCurve.

The Draft EA examines potential environmental impacts associated with the proposed improvements.

Members of the public are encouraged to review the Draft EA online or in person at several conveniently located repositories and provide input. The formal comment period begins Oct. 4 and continues through Nov. 18.

A public hearing on the Draft EA is scheduled for Thursday, Oct. 24, from 5 to 8 p.m. at the DoubleTree Phoenix Tempe Conference Center located at 2100 South Priest Drive,Tempe, AZ 85282. The hearing will include presentations at 6 p.m. and 7 p.m. Members of the study team will be available to answer questions.

There are several ways to submit comments on the Draft EA. All methods of comment are considered equal:

Online: http://azdot.gov/I10BroadwayCurve
Email: BroadwayCurve@azdot.gov
Phone: 602.501.5505 (Bilingual Project Line)
Mail: I-10 Broadway Curve Study, c/o ADOT Communications, 1655 W. Jackson St., Mail Drop 126F, Phoenix, AZ 85007

In person at the public hearing

Proposed improvements being studied include:

Widening I-10 to six general purpose lanes and two high-occupancy vehicle (HOV) lanes between the Salt River Bridge (near Phoenix Sky Harbor International Airport) and the US 60 (Superstition Freeway).
Building a collector-distributor road system between Baseline Road and 40th Street to reduce the number of lane changes on the mainline and improve traffic flow.
Adding a fourth general purpose lane on I-10 from US 60 to Ray Road and maintaining the HOV lane.
Modifying I-10 connections at SR 143, Broadway Road and US 60 to improve traffic flow.
Replacing ramps at I-10 interchanges at State Route 143 and US 60 with new ramps, including new bridges.
Adding up to three pedestrian bridges to connect communities.

The study team is also evaluating the no-build option – the condition that would exist if ADOT did nothing, which also serves as a comparison.

All comments received by Nov. 18 will be included in the Final Environmental Assessment.

If the study receives the necessary approval, construction could begin in 2021.   back...