Rail-Top Culvert

Herbert Hoover Nature Trail - Big Slough Bridge (Muscatine County, Iowa)
Rail-Top Culvert bridge over Big Slough on Railroad (RI)
Open to pedestrians(?)

RI - Hockeys Slough Tributary Bridge (Muscatine County, Iowa)
Abandoned Rail-Top Culvert bridge over Tributary of Hockeys Slough on Chicago, Rock Island & Pacific Railroad
Abandoned.