All on- and off-ramps will remain open. Westbound motorists are advised to use alternate routes including the H-201 Moanalua Freeway or Nimitz Highway underneath the H-1 airport viaduct.

The scheduled roadwork is part of a $9.1 million project to repair potholes along a nearly three-mile stretch of the H-1 Freeway airport viaduct (top deck) between Middle Street and Valkenburgh Street. Crews will use a fast-forming concrete to fill in potholes.

To minimize vibrations along the viaduct while the concrete cures, the speed limit near the repair area will be reduced to 15 mph, the state Department of Transportation said.

Special-duty police officers will be on site to enforce this speed limit.

Westbound motorists are advised to use caution while driving through the work area and to allow for extra travel time.