The world's most determined beaver might just live in Washington state.
Road crews in Kitsap County have torn down the beaver's dam under a bridge three times since August. Each time they remove it, the beaver builds it up again.
At one point, the dam was 40 feet long and 3 feet tall, Seattle TV station KOMO reported.
"They're workers, you know. They're busy all the time, I appreciate that about the animals," said Kitsap County Roads Superintendent Jacques Dean. "But at some point what they're doing is compromising public safety, and we can't let that happen."
The problem is, higher pressure water flowing downstream of the dam is undermining the bridge abutments. And that could mean repairs.
The county has decided to spend $15,000 to hire a beaver trapper and relocate the animal.
Watch video of the busy guy below or by tapping here: