The state Department of Transportations is advising motorists of the following single lane closures on Farrington Highway in both directions tomorrow through Friday from 8:30 a.m. to 3 p.m., daily:

• From Nanakuli to Makaha between Haleakala Avenue and Lawaia Street for various contractor permit projects including electrical pole replacements and installations of watermains, communications lines and manholes.

• In Waialua, from Kaena Point to Kaukonahua Road, for lane striping and marker installations.