The Board of Water Supply says one Ewa-bound lane on North King Street in Kalihi is closed on Thursday so crews can repair a 6-inch main.
The work will be going on at the corner of Poepoe Place.
Motorists are advised to expect possible traffic delays throughout the day and avoid the area if possible.
About 10 customers have been without water service since about 11 p.m. Wednesday night when the main, which was originally installed in 1941, broke.
A water wagon is set up at Poepoe Place for these customers.