PORTLAND — The Maine Department of Transportation (MaineDOT) will be performing maintenance work on the Casco Bay Bridge at mile 1.5 over the Fore River (Casco Bay) between Portland and South Portland on April 29 and May 19 in order to complete rehabilitation of the bridge's span lock power feeds.

The U.S. Coast Guard has issued a temporary deviation from the regulation governing the Casco Bay Bridge, according to MaineDOT, in a news release.

During this time, the bridge will remain in the closed position to vessel traffic on Wednesday, April 29, 2026, from 9 a.m. to 3 p.m. (Backup date: Thursday, April 30, 2026) and Tuesday, May 19, 2026, from 9 a.m. to 3 p.m. (Backup date: Wednesday, May 20, 2026).

"Vessels that can safely pass beneath the bridge while it is in the closed position may do so during these times," said MaineDOT.

Mariners seeking additional information or clarification may contact the bridge operator on marine radio channel 13 or reach the bridge supervisor directly at 207-885-7000.