According to my grandparents, who are at their house in Spring Lake right now, the bridge between SL and Sea Girt is completely flooded. You have to take the "long way" to go on the challenge to Navesink or Sandy Hook. Also, everything 1 block in (at least on the Spring Lake side) is flooded. She didn't really have any info about Sea Girt, so I can't update you there.

I tried calling the light several times, to no avail. They never pick up the phone regularly, though, so I don't know.