The left and center lanes of H-1 Freeway east-bound between the Waipahu Street overpass and the 'Aiea Heights Drive overpass will be closed from 9 p.m. to 4 a.m. nightly through Friday morning.

The closures will allow the Department of Transportation to install highway markers.

Motorists are advised to use caution while driving through the work areas and to allow for extra travel time. Roadwork is weather-permitting.