Treasure Island Causeway Middle bascule bridge
Bascule drawbridgeTreasure Island Causeway Middle bascule bridge is a bascule drawbridge with 21 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
(j) The Treasure Island Causeway Bridge, mile 119.0, at Treasure Island, Florida shall open on signal except that from 7 a.m. to 7 p.m. the draw need only open on the hour, 20 minutes after the hour and 40 minutes after the hour Monday through Friday and on the quarter hour and three-quarter hour on Saturday, Sunday and Federal holidays.
Source: US Coast Guard drawbridge regulations, 33 CFR 117.287 (Gulf Intracoastal Waterway). Confirm before transiting.
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Frequently asked
What is the clearance under Treasure Island Causeway Middle bascule bridge?+
Treasure Island Causeway Middle bascule bridge is a bascule drawbridge. Its closed vertical clearance is about 21 ft, and it opens to unrestricted height. Heights are referenced to mean high water (MHW).
How do I get Treasure Island Causeway Middle bascule bridge to open?+
Contact the bridge tender on VHF-FM Channel 13, or sound the required signal. Operating schedule: (j) The Treasure Island Causeway Bridge, mile 119.0, at Treasure Island, Florida shall open on signal except that from 7 a.m. to 7 p.m. the draw need only open on the hour, 20 minutes after the hour and 40 minutes after the hour Monday thro
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