Hobster and I hit that for steelhead in February a couple of years ago, we waded and fished some pretty water but didn't find any steelies.
If you check the regs, NW Zone Exceptions, it is closed to ALL fishing April1 to Nov30. Only open to fishing for hatchery steelhead, Dec1 to March31 (trout and wild steelhead would be C&R during these dates).