The bridge has 10.9m clearance close to New Amsterdam, and two spans that open completely for 1.5hr per day around daylight high tide; the opening times are published on their FB page (link below).
The Berbice Bridge Company (VHF Ch. 16) is
particularly inflexible and requires all vessels, leisure boats as well as cargo ships, to submit their details 24 hours in advance for approval and pay a fee of GYD 55,000 each way for transit through the opening spans. Boats with less than 10.9m require no approval and pay no fee, as they transit under the high fixed span.