Geoff the last picture should be at Riverdale bridge
This is not a duplicate because the photo is looking south while the Riverdale bridge is north of here and the Northern Pacific swing bridge is of to the right of here. When I first saw the photo I had to double check but the determining factor is the NP swing bridge near by I understand your error.
Duplicate this photo should be posted on the Riverdale bridge Willapa River
OK but I'm curious why the card was labelled South Fork Bridge?