The Arizona Department of Transportation recommends drivers utilize Interstate 17 or surface streets, such as 7th Street or 16th Street to avoid expected delays. A new project is going to impact a lot of drivers starting Monday morning, especially for those traveling on State Route 51 or Interstate 17. The closure is expected to last seven weeks to repair 700 feet of damaged pavement and the freeway's drainage system. The Arizona Department of Transportation is warning drivers to be prepared for major traffic in the area. Alternatively, drivers can use 7th Street or 16th Street surface roads.