Note that channel 70 is now for digital selective calling only. Most bridge and lock tenders now monitor VHF channels 13 and 16 in Virginia, North Carolina, and Georgia. In Florida and South Carolina, they stand by on 09 and 16. Try channel 09 or 13 first, to avoid the congestion on 16. If your radio can't be heard in the cockpit, try using a handheld radio that can be recharged at night from the boat's batteries.
Bridges often call boats to provide advice or warnings.
We've been informed of breakdowns in bridge equipment, long delays, floating hazards, submerged hazards, approaching barge traffic, and unusual opening times. Call ahead, or call a passing boat to confirm a bridge's opening times. Check with lock tenders for the best placement of fenders and suggestions on which side to tie to. Even in an emergency, most bridges need five or ten minutes to open. See the following section on bridges for more information.