Apple River Road Bridge Through truss bridge over Apple River on South Apple River Road Open to traffic Built ca. 1890
Carr Road Bridge Arch bridge over Carr Road on the ICRR, 1.5 mi. east of Scales Mound Open to traffic
Culvert Road Bridge Arch bridge over Culvert Road on the ICRR, 2.8 mi. northwest of Scales Mound Open to traffic
East Fork Galena River Bridge Pony truss bridge over East Fork Galena River on a township road, 5 mi. northeast of Galena Open to traffic Built 1901
Elmoville Road Bridge Concrete bridge over North Fork Plum River on S. Elmoville Road, 6 mi. south of S Stockton Open to traffic Built 1934
First Twin Bridges Road Bridge Pony truss bridge over Clear Creek on East Twin Bridges Road, 1.5 mi. southwest of Warren Open to traffic Built ca. 1910
Georgtown Road Bridge Three-span pony truss bridge over Apple River on West Georgtown Road, .3 mi. northwest of Elizabeth Open to traffic Built ca. 1890
Irish Hollow Creek Bridge Pony truss bridge over Irish Hollow Creek on a township road, 4 mi. west of Elizabeth Open to traffic Built ca. 1940
Julien Dubuque Bridge Steel through arch bridge over the Mississippi River on US 20 at Dubuque Open to traffic Built 1943; rehabilitated 1992
Kelly Road Bridge Arch bridge over Kelly Road on the ICRR, 2.8 mi. northeast of Galena Open to traffic
Mud Run Bridge Pony truss bridge over Mud Run on a township road, 5 mi. south of Sw Nora Open to traffic Built 1901
Muddy Plum Bridge Lost pony truss bridge over Muddy Plum River on TR 258 No longer exists Built ca. 1910; replaced 2005
Plum River Bridge Pony truss bridge over Plum River on TR 197 Open to traffic Built 1925
Posey Hill Road Bridge Arch bridge over Posey Hill Road on the ICRR, 3 mi. northeast of Galena Open to traffic
Second Twin Bridges Road Bridge Pony truss bridge over Clear Creek on East Twin Bridges Road, 1.5 mi. southwest of Warren Open to traffic Built 1915
Willow Road Bridge Concrete bridge over Muddy Plum River on Willow Road, 6 mi. south of Stockton Open to traffic Built ca. 1910