| Noxon Bridge | Sanders, MT | 37.5 miles | SE |
| Troy Bridge | Lincoln, MT | 43 miles | NE |
| Paramenter Creek Bridge | Lincoln, MT | 51.6 miles | NE |
| Klavano Bridge | Stevens, WA | 55.9 miles | NW |
| Steinmetz Bridge | Stevens, WA | 56.5 miles | NW |
| Twin Bridges | Boundary, ID | 59.3 miles | NE |
| Ione Bridge | Pend Oreille, WA | 60.6 miles | NW |
| David Thompson Bridge | Lincoln, MT | 62.3 miles | NE |
| Clark Fork River Bridge | Sanders, MT | 62.3 miles | SE |
| Dry Channel Bridge | Sanders, MT | 64.6 miles | SE |
| Main Channel Bridge | Sanders, MT | 64.6 miles | SE |
| Twelve Mile Creek Bridge | Mineral, MT | 77 miles | SE |
| Koocanusa Bridge | Lincoln, MT | 80.5 miles | NE |
| Hedlund Bridge | Ferry, WA | 83.1 miles | NW |
| Torrence Bridge | Whitman, WA | 87.4 miles | SW |
| Matlock Bridge | Whitman, WA | 87.7 miles | SW |
| Tobacco River Bridge | Lincoln, MT | 88.9 miles | NE |
| Saint Clair Creek Bridge | Lincoln, MT | 90.3 miles | NE |
| Fisher Bridge | Whitman, WA | 91.2 miles | SW |
| Rock Cut Bridge | Ferry, WA | 95.7 miles | NW |
| Rocky Ford Bridge | Lincoln, WA | 98.3 miles | SW |
| Flathead River Bridge | Sanders, MT | 102.3 miles | SE |
| Central Ferry Bridge | Whitman, WA | 113.9 miles | SW |
| Cyr Bridge | Mineral, MT | 117.8 miles | SE |
| Clark Fork River Bridge | Mineral, MT | 120.1 miles | SE |
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