Video captures salmon swimming across Washington road

It's an annual event near the SkokomishRiver in northwest Washington state salmon, flitting across a flooded rural highway, trying to make their way to upstream spawning grounds.

Aaron Dufault, a salmon policy analyst with the Washington Department of Fish and Wildlife, believes it's been happening for decades.

"That river is a little flashy so to speak. Every single year it seems to overflow its banks in a couple of areas where there are adjacent farms and pastures and a road, so that's where you see it.And it, coincidentally, times perfectly with the chum salmon returning."

A few salmon may end up as road kill but Dufaultsays, because most, if not all, are hatchery salmon, there's little impact to overallspawning numbers.

"Even if there are wild fish in there, we still get plenty into that river to seed the habitat, so there's no conservation concern," he said.