Overnight work begins today on Charleston’s Fort Hill Bridge. Crews will install a protective membrane and overlay to fix potholes and prevent further damage. The work runs nightly from 9 p.m. to 6 a.m., and all weekend, with some lane closures expected. State officials say it’s a temporary fix to extend the bridge’s life until a full replacement in the coming years. Drivers are urged to stay alert in the work zone, slow down and obey the signs.