DENVER (CBS4)– Crews worked to repair a water main break at S. Dahlia St. and E. Dartmouth Ave. on Thursday afternoon. Water was expected to be restored to customers by midnight.

The break closed South Dahlia Street between Highline and Dartmouth during repairs to the water main break.

The sinkhole was discovered just after 1 p.m. Thursday.

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Crews shut off the water to surrounding homes and began repairs.

It’s unclear what caused the break but crews are investigating the possibility that it is weather related.

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The road was expected to reopen on Friday morning.