An area of I-10 between Phoenix and Tucson prone to dust storms is getting sensors to alert drivers of oncoming danger.
The Arizona Department of Transportation is working on designs to place the sensors along I-10 between Eloy and Picacho Peak thanks to a federal grant.
As dust storms approach, the sensors will set off electronic message boards alerting drivers.
Signs will change the speed limit from 75 mph to 35 mph and cameras will allow ADOT to see what's happening.
The sensor system will cost about nearly $13-million dollars.
The project is part of a larger safety plan and construction is expected in 2018.