That's what I would do in the creek near me. But I can stand in it and operate my chainsaw. I cut small chunks and then they just float away little by little. But your situation is a whole other can of worms.Bingo
Then you end up downstream with logs ramming into someones bridge and do damage….
Bet that job requires 5 million in insurance minimum.
Wondered if I could get someone to operate a water rescue boat while I lean over and cut small pieces away one at a time with a chainsaw, so as not to create large floating battering rams downstream?