Epworth, Iowa

CN - 3rd Avenue Overpass (Dubuque County, Iowa)
Built 1910
Rigid frame bridge over 3rd Avenue NW on CN Railroad
Open to traffic

CN - Old US-20 Bridge #4 (Dubuque County, Iowa)
Built 1945
Steel stringer bridge over Old Highway Road (former US-20) on Candian National Railway
Open to traffic