Assabet

In reference to the map under the photos: there are a total of six bridges that you go under. You probably only want to scout 6.

1: Straight shot through the middle is easiest.
2: Trickiest one. Sneak route is to stay right of the two islands & then through the right of the 3 arches. Center arch is easy enough to line up, but be careful to not get pushed sideways. Left arch is toughest to get to due to a constriction just upstream creating a strong rightward push on the left side of the river.
3 & 4: Essentially flatwater, at least at medium levels.
5: Easiest to stay on the left half of the river when approaching, the bridge is after sharp leftward turn.
6: Straight shot, but there is seemingly always a blockage in at least one of the tubes. Scout it!