Water main public works
City of San Diego workers at the scene of a water main break along Carmel Mountain Road. Photo credit: @sandiegopd via Twitter

The city said early Friday evening that a segment of Carmel Mountain Road had to be shut down due to a water-main break, San Diego police reported via social media.

Authorities closed the lanes between Paseo Cardiel in Rancho Peñasquitos and Stoney Peak Road in Carmel Mountain Ranch due to the spill and warned that closures were expected to last several hours.

The police department warned motorists of possible delays via Twitter at 5:25 p.m. and followed 30 minutes later with a tweet that workers had cleaned up enough of the road to open one westbound lane.

The department asked that drivers move slowly and “be aware of workers on foot.”