Westbound lane closures along Kamehameha Highway caused traffic to back up Friday evening, the City Department of Transportation said.

The closures at Acacia Road, due to construction, caused traffic to back up to Salt Lake Boulevard. The DOT estimated travel time on Kamehameha Highway between Salt Lake Boulevard and Acacia Road would take 50 minutes. Motorists can expect long delays and are advised to take alternate routes.

Kamehameha Highway has been closed nightly in both directions between Ka Uka Boulevard and Lanikuhana Avenue this week from 8:30 p.m. to 4:30 a.m. for road reconstruction, resurfacing and installation of striping and markers.