The Arizona Department of Transportation is expected to begin a project Tuesday, Oct. 14, designed to reduce congestion and enhance safety on State Route 187.

The project will include replacing the pavement with a new layer of asphalt on SR 187 between SR 87 and SR 387, which is just east of Interstate 10. 

The improvements will include:

• Adding a right-turn lane on northbound SR 187 approaching SR 87. 
• Adding a left-turn lane on northbound SR 187 approaching Casa Grande Road.
• Adding a right-turn lane on southbound SR 87 approaching SR 187.
• Widening SR 187 to provide 8-foot paved shoulders.
• Removing and replacing the asphalt.
• Constructing drainage improvements.
• Replacing bridge railing.

The project is expected to be complete in the spring.

Construction is expected to take place between 6 a.m. and 6 p.m. weekdays.

Drivers should expect traffic delays as the roadway is narrowed to a single lane of alternating traffic at times, state transportation officials said.

Motorists are encouraged to use SR 387 as an alternate route.