I-10 Horace Wilkinson Bridge air gap
NOAA air-gap observation station at the Horace Wilkinson Bridge. Use the latest observation as one planning input, then verify official navigation information before passage.
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Check against your boat
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Navigation check: BoatWaypoint is a planning aid, not a substitute for official NOAA charts, USCG Local Notices to Mariners, bridge operator instructions, on-water judgment or a chartplotter. Air-gap observations may be preliminary and are measured at a designated reference point.
What this station can tell you
NOAA air-gap systems report the measured distance between the water surface and a designated bridge reference point. BoatWaypoint shows that observation unchanged in feet, then performs only the subtraction you request for air draft and buffer.
What it cannot tell you
The sensor does not guarantee clearance along every possible track, account for your vessel’s motion, establish temporary opening restrictions, or replace an official chart. Treat a stale or unavailable observation as unavailable — never as permission to proceed.