What does a flashing red light indicate for boaters?

A flashing red light serves as a critical warning signal for boaters, indicating that they should stay well clear of the lock and not attempt to enter. This safety measure is in place to prevent accidents in situations where the lock may be closed, malfunctioning, or unsafe for passage.

Following this signal ensures that all vessels maintain a safe distance while the lock is not ready for new traffic, ultimately protecting everyone on the water. Recognizing and adhering to navigational aids and signals, such as a flashing red light, is essential for safe boating practices and helps avoid potential hazards present at locks.