Just reading through the latest LNM. They now report that the Rigolets hwy 90 bridge has been returned to normal operation, and that the hwy 90 Chef Pass bridge will be closed to navigation from 1/9 to 1/12 for repairs. I'm guessing that this means that they think the Rigolets is passable, even across the train bridge section.
I don't see where they have replaced the channel markers between the I-10 bridge and the rigolets itself though, so one would want to know where one is going.