| Memorial Bridge | Scott, IA | 19.4 miles | NW |
| Government Bridge | Scott, IA | 21.2 miles | NW |
| Centennial Bridge | Rock Island, IL | 21.5 miles | NW |
| Centennial Bridge | Scott, IA | 21.5 miles | NW |
| Downey Bridge (historical) | Mercer, IL | 26.9 miles | SW |
| Lapham Bridge | Knox, IL | 27.7 miles | SE |
| Trenton Bridge (historical) | Knox, IL | 28.9 miles | SE |
| Wolf Covered Bridge | Knox, IL | 31.6 miles | SE |
| Slackwater Bridge | Stark, IL | 32.4 miles | SE |
| Pine Mill Bridge | Muscatine, IA | 32.4 miles | NW |
| Clinton Illinois Bridge | Whiteside, IL | 37.9 miles | NE |
| Chicago and Northwestern Railroad Swing Bridge | Clinton, IA | 38 miles | NE |
| Norman F Beckey Bridge | Muscatine, IA | 39.5 miles | NW |
| Muscatine Highway Bridge (historical) | Rock Island, IL | 39.7 miles | NW |
| London Mills Bridge | Fulton, IL | 40.2 miles | SE |
| Ames Creek Bridge | Clinton, IA | 40.2 miles | NW |
| Lyons-Fulton Bridge | Whiteside, IL | 40.2 miles | NE |
| Mark N Morris Bridge | Clinton, IA | 40.2 miles | NE |
| Indian Ford Bridge | Fulton, IL | 41.3 miles | SE |
| High Rock Bridge | Clinton, IA | 41.5 miles | NW |
| Davenport Bridge | Henderson, IL | 42.4 miles | SW |
| Red Covered Bridge | Bureau, IL | 43 miles | NE |
| Hawkeye Creek Bridge | Des Moines, IA | 43 miles | SW |
| Evans Mill Bridge | Peoria, IL | 43.5 miles | SE |
| Oquawka Wagon Covered Bridge | Henderson, IL | 44.1 miles | SW |
| Yellow Spring Creek Bridge | Des Moines, IA | 48.3 miles | SW |
| Babylon Bend Bridge | Fulton, IL | 48.8 miles | SW |
| Ziltz Bridge | Fulton, IL | 50.2 miles | SW |
| Wolf Bridge | Whiteside, IL | 51.2 miles | NE |
| Elkhorn Creek Bridge | Whiteside, IL | 52.2 miles | NE |
| McKeown Bridge | Muscatine, IA | 52.5 miles | NW |
| Buckeye Bridge | Fulton, IL | 52.7 miles | SW |
| Johnson Bridge | Carroll, IL | 53.2 miles | NE |
| MacArthur Bridge | Des Moines, IA | 53.7 miles | SW |
| Sixth Street Viaduct | Des Moines, IA | 54.2 miles | SW |
| Olin Bridge | Carroll, IL | 54.9 miles | NE |
| Cascade Bridge | Des Moines, IA | 55.1 miles | SW |
| Flint River Bridge | Des Moines, IA | 55.5 miles | SW |
| McClugage Bridge | Tazewell, IL | 55.5 miles | SE |
| Bob Michel Bridge | Peoria, IL | 55.7 miles | SE |
| Seville Bridge | Fulton, IL | 55.8 miles | SW |
| Murray M Baker Bridge | Peoria, IL | 55.8 miles | SE |
| Cedar Street Bridge | Tazewell, IL | 55.8 miles | SE |
| Weidenhamer Bridge | Carroll, IL | 55.9 miles | NE |
| Big Slough Creek Bridge | Muscatine, IA | 56.3 miles | NW |
| Savanna-Sabula Bridge | Carroll, IL | 56.4 miles | NE |
| Savanna - Sabula Bridge | Jackson, IA | 56.4 miles | NE |
| Holler Bridge | McDonough, IL | 57.4 miles | SW |
| Mill Creek Bridge | Cedar, IA | 58.2 miles | NW |
| Gripple's Quarry Bridge | Louisa, IA | 58.5 miles | SW |
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