Berths, electricity, gasoline, diesel fuel, water, ice, pump-out station, wet and dry storage, marine supplies, launching ramps, and a 5-ton hoist are available at marinas near the bridge. Hull, engine, and electronic repairs can be made.
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Barataria Pass is the main entrance to Barataria Bay. A jetty, marked off its outer end by a private light, extends SE from the E tip of Grand Isle on the W side of the pass.
Grand Isle, the only town on Barataria Bay, is in the center of a long, narrow island of the same name.
Bayou Rigaud, on the N side of Grand Isle, is the approach to the town of Grand Isle, 4 miles W of Barataria Pass. A dredged channel leads SW from just inside the pass for about 3.7 miles through Bayou Rigaud to the town of Grand Isle. In 1994, the controlling depth was 9 feet to Daymark 14, thence 6½ feet to Daymark 16. It is reported that the entrance is subject to shoaling; caution is advised. A lighted range, buoys, daybeacons, and a light mark the channel.
Grand Isle Coast Guard Station is on the NE corner of the island. Several oil companies have marine repair bases at which oil well structures and barges are built or repaired, a shipyard, and several service wharves. Many shrimp, oil well supply, and crewboats operate from Grand Isle.