TAMPA, Fla. -- The sudden development of an underground cavern is forcing traffic to be rerouted near a major Tampa Bay interchange.

Westbound traffic on Fletcher Avenue from I-75 to Telecom Parkway is closed until further notice, according to a Hillsborough County Sheriff's Office news release.

City officials said it could be days or even weeks before the roadway is repaired.

Deputies say a cavern formed under the westbound lanes of Fletcher Avenue where it crosses the Hillsborough River. Most of the outside lane under the bridge has eroded from a water main leak.

Drivers can take southbound Telecom Parkway, which loops to Morris Bridge Road. Traffic on eastbound Fletcher Avenue is backed up in the meantime.

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