| Lewis and Clark Bridge | Columbia, OR | 25.7 miles | NW |
| Coal Bank Bridge | Cowlitz, WA | 27 miles | NW |
| Interstate Bridge | Multnomah, OR | 28.3 miles | SW |
| Sauvie Island Bridge | Multnomah, OR | 31 miles | SW |
| Saint Johns Bridge | Multnomah, OR | 32.2 miles | SW |
| Broadway Bridge | Multnomah, OR | 33.9 miles | SW |
| Steel Bridge | Multnomah, OR | 34.1 miles | SW |
| Burnside Bridge | Multnomah, OR | 34.4 miles | SW |
| Nesika Bridge | Lewis, WA | 34.5 miles | NE |
| Morrison Bridge | Multnomah, OR | 34.8 miles | SW |
| Hawthorne Bridge | Multnomah, OR | 35.1 miles | SW |
| Bridge of the Gods | Hood River, OR | 35.1 miles | SE |
| Marquam Bridge | Multnomah, OR | 35.5 miles | SW |
| Ross Island Bridge | Multnomah, OR | 35.8 miles | SW |
| Huffaker Bridge | Lewis, WA | 37.4 miles | NE |
| Sellwood Bridge | Multnomah, OR | 38.3 miles | SW |
| High Bridge | Hood River, OR | 38.3 miles | SE |
| Four One Half Mile Bridge | Hood River, OR | 38.9 miles | SE |
| Arcadia Bridge | Columbia, OR | 40.3 miles | SW |
| Revenue Bridge | Clackamas, OR | 40.7 miles | SE |
| Lower Midland Bridge | Columbia, OR | 40.8 miles | NW |
| Bakers Bridge | Clackamas, OR | 41.8 miles | SW |
| Barton Bridge | Clackamas, OR | 42.6 miles | SE |
| Rood Bridge | Washington, OR | 42.6 miles | SW |
| Birkenfeld Bridge | Columbia, OR | 42.7 miles | SW |
| Shipley Bridge | Clackamas, OR | 44.3 miles | SW |
| Harris Bridge | Washington, OR | 44.9 miles | SW |
| Fields Bridge | Clackamas, OR | 46.1 miles | SW |
| Scholls Bridge | Washington, OR | 46.2 miles | SW |
| Schamberg Bridge | Washington, OR | 46.3 miles | SW |
| Weiss Bridge | Clackamas, OR | 46.5 miles | SW |
| Dry Run Bridge | Hood River, OR | 47.2 miles | SE |
| Cora Bridge | Lewis, WA | 48.7 miles | NE |
| Tucker Bridge | Hood River, OR | 49.4 miles | SE |
| Knights Bridge | Clackamas, OR | 52 miles | SW |
| Graham Bridge | Tillamook, OR | 52.5 miles | SW |
| Red Bridge | Clackamas, OR | 52.9 miles | SW |
| Vinemaple Bridge | Clatsop, OR | 53.1 miles | SW |
| Goods Bridge | Clackamas, OR | 53.3 miles | SW |
| Wrights Bridge | Clackamas, OR | 55.4 miles | SW |
| Meadowbrook Bridge | Clackamas, OR | 57.9 miles | SW |
| Yunkers High Bridge | Clatsop, OR | 58.6 miles | SW |
| Tile Factory Bridge | Clackamas, OR | 59.1 miles | SW |
| Dickey Bridge | Clackamas, OR | 59.5 miles | SW |
| Killin Bridge | Marion, OR | 60.8 miles | SW |
| Morris Bridge | Marion, OR | 62 miles | SW |
| Monitor Bridge | Clackamas, OR | 63.5 miles | SW |
| Ross Bridge | Marion, OR | 65.3 miles | SW |
| Canyon Bridge | Pierce, WA | 65.9 miles | NE |
| Jacks Bridge | Clackamas, OR | 66 miles | SW |
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