Crews are working to restore water service to almost 2,000 Las Vegas homes, apartment complexes and businesses after an underground water main failed southeast of downtown.

Traffic was snarled in the area while motorists were diverted around a hole that opened when the rushing water undermined and collapsed a portion of roadway.

A Las Vegas Valley Water District spokesman says service could be restored by nightfall to customers in the area south of Sahara Avenue and Nellis Boulevard and west to Mountain Vista Boulevard.

The break happened about 1 a.m. Friday, while water crews repaired a leaking valve on an aging 12-inch main.

Buehrer says Nevada Power Co. crews identified the leak while working on an underground conduit in the area earlier in the week.

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