UPDATE: All lanes of Kalanianaole Highway are back open Sunday following a 12-inch water main break that occurred in East Oahu.
The break initially affected eastbound traffic between Waiholo Street and Kaimoku Way.
Drivers encountered major delays on both the highway and the H-1 Freeway. Several lane closures and traffic modifications were in effect as crews worked on repairs.
BWS worked with the city Department of Transportation Services to monitor and adjust traffic signals as needed.
Work was completed at around 11 p.m. Saturday and all lanes were reopened at 2:10 a.m. Sunday.
Water service was restored to 31 affected customers.