OregonDOT:
Isthmus Slough Bridge
OregonDOT:
Isthmus Slough Bridge
OregonDOT:
Isthmus Slough Bridge (west approach)
OregonDOT:
Isthmus Slough Bridge
OregonDOT:
Isthmus Slough Bridge deck
OregonDOT:
Isthmus Slough from east 2005