THE Maritime Administration Department (MARAD) has issued Notice to Mariners No. 136 of 2025, announcing the temporary closure of navigational channels at the New Demerara River Bridge and the Demerara Harbour Bridge.

The closures are scheduled on two occasions to allow for essential construction work on the new bridge.
Marine traffic will be restricted during the following periods: First Closure: 07:00 hours on September 4, 2025, to 20:00 hours on September 5, 2025. Second Closure: 07:00 hours on September 8, 2025, to 20:00 hours on September 9, 2025.

The temporary restriction is necessary for the removal of form travellers used in constructing the main cable-stayed deck of the New Demerara River Bridge.
Officials note that this work represents a major step toward completing the bridge, which will allow ships to navigate the full length of the Demerara River more efficiently.
During the closure periods, all vessels are strictly prohibited from transiting the bridges or operating in the designated restricted areas.

MARAD has provided specific coordinates for the high span and retractor span areas affected by the closures, which are available in the official notice.
Mariners requiring further information can contact the Georgetown Lighthouse on VHF Channel 16. The notice was issued on August 19, 2025, by J. Hinds, acting Harbour Master.