PHOENIX (AZFamily)<\/b> \u2014 Several large freeway improvement projects are set to begin in the Valley this year.<\/p>\n
The projects include the first ones funded under Proposition 479<\/a>, which was approved by Maricopa County voters in 2024, Arizona Department of Transportation (ADOT) officials said.<\/p>\n Loop 303 between I-17 and 51st Avenue<\/p>\n A $129-million Loop 303 improvement project will start in late January to add direct freeway-to-freeway ramps at the I-17\/Loop 303 interchange in north Phoenix. <\/p>\n It\u2019s also expected to widen the Loop 303 to three lanes in each direction from I-17 west to 51st Avenue.<\/p>\n I-10\/Loop 101 in the West Valley<\/p>\n Starting in spring 2026, ADOT will begin a roughly three-year project to add an HOV bridge at the Loop 101 and I-10 interchange and widen both freeways in both directions.<\/p>\n Starting in spring 2026, ADOT will begin a roughly three-year project to add an HOV bridge at the Loop 101 and I-10 interchange. Alaina Kwan reports.<\/p>\n ADOT spokesperson Doug Nintzel said the work is aimed at reducing bottlenecks as the West Valley grows.<\/p>\n \u201cIt\u2019s going to be very important to make these capacity enhancements and a new HOV-lane bridge, but also widening, giving drivers more room at both freeways at the interchange itself,\u201d he said. <\/p>\n Nintzel noted the stretch near 83rd and 99th avenues is particularly busy.<\/p>\n Loop 202 Santan Freeway<\/p>\n Crews have reached the halfway point on a project that began in 2024 between the Loop 101 and Val Vista Drive to add two lanes in each direction and widen freeway bridges. <\/p>\n Crews have reached the halfway point on a project that began in 2024 between the Loop 101 and Val Vista Drive.<\/p>\n The work has required temporary closures of several on- and off-ramps. ADOT expects 2026 to be a year of substantial progress and estimates completion in spring 2027. <\/p>\n \u201c2026 will be the big year for the progress to be made,\u201d Nintzel said.<\/p>\n ADOT urged drivers to expect delays and exercise patience while the projects are underway. <\/p>\n See a spelling or grammatical error in our story? Please click here to report it<\/a>.<\/p>\n