What VHF channel is used by the Duwamish Railroad Bridge?

The Duwamish Railroad Bridge operates on VHF channel 13. This specific frequency is widely used for communications between vessels and bridge operators, especially in areas where maritime traffic is common. Channel 13 is designated for communications concerning bridge openings and restrictions, making it the appropriate channel for boat operators to notify the bridge operator of their approach and intentions, which is crucial for ensuring safe and efficient passage through navigable waters.

Other channels available for maritime communication serve different purposes. For instance, channel 10 is often used for inter-ship communications and channel 11 may be utilized for vessel traffic service in some areas. Channel 15, while also available, is primarily designated for commercial and other specific communications rather than for bridge openings. This specificity of channel use is essential for maintaining clear communication in busy waterways, like those surrounding the Duwamish Railroad Bridge.