Help Identifying This Wood

looks like dough fir to me as well. likely it was part of a covered deck or arbor associated with a home and landscaping features on a beach front home. the beach bluff eroded and the structure fell onto the beach and got washed out to sea after a storm. I see this kind of stuff all the time around the Puget sound area.

It is was not critical structure or they would have used higher quality lumber.

 

Oregon Pine