Grosse Ile Bridge
Swing drawbridgeGrosse Ile Bridge is a swing drawbridge with 10 ft closed, opening to unrestricted height.
Clearances are from NOAA charts, referenced to mean high water. Actual clearance is lower at higher tides and storm surge. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.
How to request an opening
This drawbridge has no special schedule in our dataset, so it generally opens on signal under the Coast Guard's general rules. Hail the tender on VHF-FM Channel 13 or sound the required signal. See District of Columbia drawbridge regulations (33 CFR 117).
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Frequently asked
What is the clearance under Grosse Ile Bridge?+
Grosse Ile Bridge is a swing drawbridge. Its closed vertical clearance is about 10 ft, and it opens to unrestricted height. Heights are referenced to mean high water (MHW).
How do I get Grosse Ile Bridge to open?+
Contact the bridge tender on VHF-FM Channel 13, or sound the required signal. It generally opens on signal under the Coast Guard's general drawbridge rules (33 CFR 117).
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