UPDATE: After hours of repair work by crews from Tennessee American Water, the water main break on Broad Street was repaired Thursday.

The large excavation destroyed part of the road, so it may take several more hours before the affected section of the road is completely re-opened for drivers.

PREVIOUS STORY: Tennessee American Water (TAW) crews will be working overnight to fix a water main break in downtown Chattanooga.

The break happened in the 1200 block of Broad Street.

A spokesperson for TAW confirms the 8" break and says only a few customers are expected to be affected.

The spokesperson says it's unclear if one or two lanes going towards the downtown area will be impacted.

Repair crews will begin working on the break as soon as they finish repairs to another water main break on Hixson Pike.

Stay with WRCBtv.com for updates to this story.