$613M Loop 303 extension breaks ground in Goodyear, will connect to planned I-10 reliever

Article originally posted on Phoenix Business Journal on June 16, 2026

A $613 million Arizona Department of Transportation project to extend loop 303 southward in the West Valley city of Goodyear got underway Monday and is expected to continue for about four years.

The work will extend the 303 from Van Buren Street to Maricopa County 85, and it will prepare the way for a connection with the planned State Route 30, which will serve as a reliever for Interstate 10 by stretching through the southwest portion of the Valley from Loop 303 to Loop 202.

ADOT said much of the new stretch of Loop 303 freeway will follow the current alignment of Cotton Lane and will be elevated over cross streets and Union Pacific railroad tracks, with sound walls in certain areas.

The segment between Van Buren Street and Lower Buckeye Road will include three general purpose lanes in both directions, while the portion between Lower Buckeye and Maricopa County 85 will have two general purpose lanes.

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