By CBS3 Staff

PHILADELPHIA (CBS) — The Delaware River Port Authority says the Walt Whitman Bridge will be closed overnight. The bridge will be closed to all traffic from 11 p.m. until 4 a.m. Wednesday.

Officials say the bridge will close so a new overhead sign structure can be installed across all lanes of the bridge.

Drivers are advised to use either the Ben Franklin Bridge or the Commodore Barry Bridge as detours.