The Guam Power Authority is notifying the public of a partial road closure in Dededo to accommodate system improvements.

The closure will take place from 10 p.m. Friday, Jan. 24, to 6 p.m. Saturday, Jan. 25, along Route 1, Marine Corps Drive, near the Harmon Substation.

Crews will work on both southbound and northbound lanes, starting with the outer two southbound lanes near the Harmon Substation before moving to the northbound lanes near Micronesia Mall.

A full closure of all lanes is expected for one to two hours between midnight and 6 a.m. Saturday.

Motorists are advised to expect delays and follow highway road signs for detours. GPA stresses that the closures are necessary to ensure the safety of line crews and personnel.

If work finishes ahead of schedule, the lanes will reopen earlier than planned.