Rockford & Freeport Interurban Railway

Reporting mark: R&F
R&I - Coolidge Creek Culvert (Winnebago County, Illinois)
Abandoned concrete culvert bridge over Coolidge Creek on Rockford & Interurban
Abandoned

R&I - Kishwaukee River Bridge (Winnebago County, Illinois)
Lost Deck plate girder bridge over Kishwaukee River on Rockford & Interurban
Removed but not replaced

R&I - Pecatonica River Bridge (Stephenson County, Illinois)
Built 1904; Service ended September 30, 1930; Rails (and bridge) removed during the winter of 1931-32
Lost Bridge over Pecatonica River on Rockford & Interurban Railway
Removed

R&I - South Fork Kent Creek Tributary Culvert (Winnebago County, Illinois)
Abandoned concrete culvert bridge over South Fork Kent Creek Tributary on Rockford & Interurban Railway
Abandoned