This sighting on a river in Alaska has never been explained

Alaskan sturgeon can reach 6.1 meters and nearly one ton. White sturgeon, North America's largest fish, can grow to 20 feet. Green sturgeon typically reach 4-5 feet, with a maximum of about 8 feet.

sturgeon ?

If you Google ❝Alaska frozen sea serpent❞, it's explained. It's a rope. The water current gives the illusion the ice covered rope that's tied to the bridge pier is swimming but it's just going with the flow.

Looks like a large white sturgeon.

It's a wale with ice that formed on it's back.

you never heard this song before

sea serpent

ok, WHAT IS IT?

logs chained together

It’s called fish

Looks like a sturgeon.