The Hwy 90 Bridge has been operational for a little over a week. Check before going with LA DOTD (504-437-3100).
Last week when I tried to go East, the Hwy 11 bridge broke and after waiting 4 hours, I gave up. They were replacing the generator when I bailed out.
The Coast Guard (504-589-6261)told me that the Rigolets Pass was open to Marine traffic, so I guess that means they believe the train bridge is out of the way enough for passage.