BATON ROUGE, La. (AP) — A simple waterproofing job at the Louisiana Capitol turned up a more serious problem, limestone on the building's exterior in danger of falling.

WBRZ-TV reports the finding will keep the front doors of the 85-year-old building closed for a year longer than expected. The doors have been inaccessible for about two years already, with visitors steered to side entrances.

The waterproofing work was expected to be complete earlier this year. But inspectors' discovery that some massive limestone panels that encase the building are coming loose has added more work to reattach the 2,500-pound slabs.

The Division of Administration says the Capitol's front doors will stay shut another year until the project wraps up. The cleaning and repairing of the first six floors of the building will cost $5.3 million.