SAN FRANCISCO (AP) The Bay Area Rapid Transit Agency will provide 24-hour train service because of the San Francisco-Oakland Bay Bridge closure.

BART announced the plans Saturday afternoon because the state Transportation Department could not say whether the bridge would reopen later in the evening. Late Saturday, it was still unclear if the span will reopen for the Monday morning commute.

BART officials say trains would run hourly to 14 stations service usually ends about midnight.

"Crews are working 24-7 to get these repairs as quickly and efficiently but as safely as possible," state Transportation Department spokeswoman Lauren Wonder said Saturday.

She could not say when the bridge would reopen or if Monday morning commuters would be faced with another grueling commute around a closed bridge.

Work began Tuesday night after two rods and a crossbar installed over Labor Day weekend to repair a crack failed, sending 5,000 pounds of metal into rush hour traffic. One person sustained minor injuries.

Wonder said crews on Saturday were installing the new rods, a tedious process that requires workers to put the metal rods in place and then uninstall them while adjustments are made to ensure they don't rub against other metal parts.

Once the rods are cut and ground to a perfect fit, testing can begin. Officials hoped that might happen by Saturday afternoon. Testing takes about three hours, on top of the time independent inspectors might need to check out the repair work.

"We want to make sure this is safe and works correctly," Wonder said.

Caltrans has not released a cost estimate for the emergency repairs.

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