Three new westbound Interstate 10 lanes open this week
Westbound travelers on Interstate 10 south of Casa Grande now will be able to use three new lanes, part of a yearlong project to widen a 4-mile stretch of the I-10 in Pinal County.
The new lanes start at Milepost 213 and reconnect with I-10 lanes near Milepost 209, the Arizona Department of Transportation said in a statement.
The project also will include new eastbound lanes in about a month.
The project is part of a larger ADOT effort to expand I-10 from two to three lanes in each direction between Casa Grande and Tucson by the end of next year.
Last year, crews began clearing ground just south of Eloy for the project. The work also will include a new interchange with State Route 87 and installation of a new dust-detection system designed to warn motorists of dangerous conditions when storms move through, officials said.
The system will adjust speed limits on electronic signs along the highway as conditions become more hazardous, gradually dropping speeds from 75 to 35 mph depending on conditions.
The project is funded through a $54 million federal grant, the Transportation Department said. Crews are expected to finish the project by summer. In October, ADOT officials said the agency had agreed with the Gila River Indian Community to work on a study along with the Maricopa Association of Governments on possible widening I-10 south of the Phoenix area, where a 23-mile stretch crosses the reservation between the Valley and Casa Grande. That stretch is now two lanes in each direction.
The study is expected to take about 18 months to complete, officials said.