| China Ditch | Clark, WA | 10.3 miles | SE |
| Big Ditch | Clark, WA | 14.2 miles | SE |
| Crown Zellerback Power Ditch | Clark, WA | 19.5 miles | SE |
| Peninsula Drainage Canal | Multnomah, OR | 19.8 miles | SW |
| Marquam Dry Lake Canal | Multnomah, OR | 19.9 miles | SW |
| Ditch Number Eight | Cowlitz, WA | 31.9 miles | NW |
| Ditch Number Six | Cowlitz, WA | 32.5 miles | NW |
| Ditch Number Ten | Cowlitz, WA | 32.6 miles | NW |
| Oswego Canal | Clackamas, OR | 34.1 miles | SW |
| Lousignont Canal | Washington, OR | 36.7 miles | SW |
| Seely Ditch | Clackamas, OR | 40.2 miles | SW |
| Lost Creek Ditch | Skamania, WA | 40.5 miles | NE |
| Uncle Tom Slough | Columbia, OR | 40.6 miles | NW |
| Oak Grove Ditch | Hood River, OR | 42.4 miles | SE |
| Low Line Ditch | Hood River, OR | 45.4 miles | SE |
| Dee Flat Ditch | Hood River, OR | 45.6 miles | SE |
| Farmers Ditch | Hood River, OR | 47.4 miles | SE |
| Highline Lateral | Hood River, OR | 48.6 miles | SE |
| Power Canal | Hood River, OR | 49.5 miles | SE |
| Central Lateral | Hood River, OR | 50.2 miles | SE |
| Mount Hood Canal | Hood River, OR | 50.6 miles | SE |
| Volmer Ditch | Hood River, OR | 50.6 miles | SE |
| East Fork Main Canal | Hood River, OR | 50.7 miles | SE |
| Neal Creek Lateral | Hood River, OR | 51.4 miles | SE |
| Glacier Ditch | Hood River, OR | 52 miles | SE |
| Drescher Ditch | Marion, OR | 53 miles | SW |
| Walker Ditch | Marion, OR | 57.2 miles | SW |
| Sage Flat Ditch | Klickitat, WA | 58.5 miles | NE |
| Jones Ditch | Marion, OR | 59.7 miles | SW |
| Hellroaring Ditch | Yakima, WA | 60.4 miles | NE |
| Lake Labish Ditch | Marion, OR | 61.1 miles | SW |
| Springer Ditch | Wasco, OR | 61.9 miles | SE |
| Frog Creek Ditch | Wasco, OR | 63.8 miles | SE |
| Wolf Run Ditch | Wasco, OR | 64.1 miles | SE |
| Clear Creek Ditch | Wasco, OR | 66.8 miles | SE |
| Orchard Ridge Ditch | Wasco, OR | 67.3 miles | SE |
| Shelton Ditch | Marion, OR | 69.3 miles | SW |
| Mission Ditch | Marion, OR | 69.5 miles | SW |
| Lost Boulder Ditch | Wasco, OR | 70.3 miles | SE |
| Skipanon Waterway | Clatsop, OR | 70.8 miles | NW |
| Moroney Canal | Tillamook, OR | 71 miles | SW |
| Highland Ditch | Wasco, OR | 71.3 miles | SE |
| Threemile Ditch | Wasco, OR | 71.6 miles | SE |
| Dufur Ditch | Wasco, OR | 71.7 miles | SE |
| Yelm Ditch | Thurston, WA | 72.2 miles | NW |
| Highberger Ditch | Marion, OR | 72.9 miles | SW |
| Rock Creek Ditch | Wasco, OR | 74.2 miles | SE |
| Salem Ditch | Marion, OR | 74.7 miles | SW |
| Centralia Canal | Thurston, WA | 75.1 miles | NW |
| Perrin Lateral | Marion, OR | 75.7 miles | SW |
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