| Sam Hill Memorial Bridge | Sherman, OR | 31.6 miles | SW |
| Cottonwood Bridge | Sherman, OR | 34.2 miles | SW |
| Taylor Bridge | Gilliam, OR | 35.1 miles | SE |
| The Dalles Bridge | Wasco, OR | 46.3 miles | SW |
| The Dalles Bridge | Klickitat, WA | 46.3 miles | SW |
| Umatilla Bridge | Umatilla, OR | 47.8 miles | SE |
| Twin Bridges | Benton, WA | 52 miles | NE |
| Vernita Bridge | Benton, WA | 55.1 miles | NE |
| Tucker Bridge | Hood River, OR | 62.9 miles | SW |
| Madame Dorion Bridge | Walla Walla, WA | 68.3 miles | NE |
| Rieth Bridge | Umatilla, OR | 72 miles | SE |
| Dry Run Bridge | Hood River, OR | 74.9 miles | SW |
| Bridge of the Gods | Hood River, OR | 78.9 miles | SW |
| Four One Half Mile Bridge | Hood River, OR | 79.1 miles | SW |
| High Bridge | Hood River, OR | 79.1 miles | SW |
| Cora Bridge | Lewis, WA | 80.9 miles | NW |
| Canyon Bridge | Pierce, WA | 84 miles | NW |
| Luckenbill Bridge | Walla Walla, WA | 85.6 miles | NE |
| Huffaker Bridge | Lewis, WA | 86.9 miles | NW |
| Joe West Bridge | Umatilla, OR | 95.7 miles | SE |
| Natural Bridge | Pierce, WA | 96.3 miles | NW |
| Dorothy Bridge | Umatilla, OR | 97 miles | SE |
| Revenue Bridge | Clackamas, OR | 99.4 miles | SW |
| Nesika Bridge | Lewis, WA | 100.3 miles | NW |
| Goose Rock Bridge | Grant, OR | 100.6 miles | SE |
| Coles Bridge | Grant, OR | 103.4 miles | SE |
| Fairfax Bridge | Pierce, WA | 110.9 miles | NW |
| Bridge Ninty-Nine | Jefferson, OR | 115.9 miles | SW |
| Kummer Bridge | King, WA | 122.4 miles | NW |
| Whitney Bridge | King, WA | 123 miles | NW |
| Rocky Ford Bridge | Lincoln, WA | 131.2 miles | NE |
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