Lanes of a major intersection in Simi Valley remain closed this morning after a water-main break that occurred Tuesday night, officials said.
The water-main break also caused a small sinkhole in the area.
Repairs are underway this morning, but police believe the diversion will still affect traffic.
Chip Townsend of the Simi Valley Department of Public Works said the water main was repaired this morning but then broke again.
"We just finished the repair and the pipeline came apart again on us. We're actually kind of in a jam at this moment. We have to redig it up," Townsend said.
He expected the repairs to take eight or nine hours and affect rush hour traffic.
Simi Valley police had asked drivers to avoid the areas where Los Angeles Avenue intersects with Erringer Road as well as westbound Los Angeles Avenue and First Street as a power outage knocked out traffic lights there. Power was restored by 11:30 p.m.
Police were urging motorists to avoid the area of Madera Road and Los Angeles Avenue on Tuesday night after a break flooded the road.
Police said officers closed the intersection to traffic Tuesday night.
“Madera Road will remain partially open for north and south traffic but drivers should expect delays,” police said in a statement. They added that no traffic was permitted west on Tierra Rejada road toward Moorpark.
Motorists headed for Moorpark were urged to take an alternative route, such as Highway 118.
Drivers also could take First Street and then Royal Avenue to Thousand Oaks, police said.