Did you see this, it may be on the Maine side:
Jonny Bolt » Mon Dec 12, 2005 4:46 pm
I am from Hampton and fish the Piscataqua for Striped Bass almost weekly between June and Sept. The loco is on the Kittery side of the river. If you were driving from Portsmouth into Maine over the bridge, the loco would be on the left side. It was moved over closer to shore, because the railroad tracks that run under the bridge has an automated lift on the Kittery side that stays up the majority of the time to allow boat traffic through at higher tides. I have never been fortunate enough to be on the water in the boat when the tracks slide over and down and the train passes over, cuz I usually fish at night, starting at around 6 or 7. But that loco is still down there, and I have heard mumblings of divers visiting it here and there. The Piscataqua river is very fast, and can be dangerous. It runs 3.5 knots at max, making it the 2nd or 3rd strongest tidal river in the world. It’s no joke lol. There have been many a moron in a boat who have tried to anchor in it under or around the General Sullivan Bridge (the span that connects Newington to Dover) and had quite a blunder. It will suck you and your boat right under.