Turns out, this was my introductory VT river when I moved here in 1989. Going through the second rapid and seeing the rock wall on river right made me know this was a place to be.
The lower New Haven (the LNH as opposed to the NHL New Haven Ledges) is wonderful intermediate run of about 2 1/2 miles. A convenient alternative for when the New Haven Ledges are too high (though for some that never happens). Normally a low level would be 1,000 on USGS with medium at 2,000 and 2,500-3,000 and up a high level. You can expect some rock bashing at 1,000 and as the level increases things are ever better covered but the river gets faster and pushier. A relaxed paced run will take about an hour on the water.
The LNH starts, for many, with a slide from under the 116 bridge into a pool that is at the head of the first rapid. There is not much time to catch your breath before you’re into the first rapid. You can catch a couple of eddy’s through this rapid. Depending on the level, there may be a surf wave to ride about half way through it. This rapid, like all of the rapids on the river can be easily portaged.