Weir and Plymouth Rivers, Hingham?

Hey all, I have been working salt water almost exclusively for more than a decade and now I have a family member asking me to take them for trout once the stockies get dumped in.

I'm looking at both the Weir and Plymouth in Hingham, but I have no clue about access nor spots that hold fish. The Weir, in particular, looks like it might have some obstructions so I don't want to waste a morning throwing line into fish-less waters.

Would be great if someone could point me in the right direction. I'm willing to do some exploring on my own before the season starts.

Thanks!