ADOT I-17 Improvement Project

This project will reduce congestion, which helps to improve safety by creating more space between vehicles.

With the addition of new travel lanes from Anthem Way to Black Canyon City and flex lanes from Black Canyon City to Sunset Point, capacity on the I-17 will increase in both directions. This will better accommodate existing traffic and increased traffic as the demand on I-17 continues to grow.

This stretch of road sees heavy usage during weekends, causing long delays. These improvements will increase capacity and alleviate congestion. Greater efficiency means drivers can get to and from the places they need to be in less time, and more safely.

The addition of the flex lanes will allow traffic to move more efficiently and reduce travel times. In the event of a crash that blocks lanes, the new flex and general purpose lanes will make it easier for motorists to travel safely through the affected areas and prevent miles-long backups.

Each year, more than $300 billion in goods are shipped to and from Arizona. I-17 is identified as one of the state's key commerce corridors, moving people and goods between southern and northern Arizona. This vital highway also connects to I-10 and I-40, two of the nation's principal east-west interstate highways. I-10 and I-40 are also two of Arizona's key commerce corridors and are essential for future, quality economic growth in Arizona. This project will help make I-17 a more favorable route for commercial truck drivers whose travels through the region support our local businesses.