| Sweetwater Canal | Nez Perce, ID | 32.9 miles | SW |
| Webb Creek Canal | Nez Perce, ID | 33 miles | SW |
| Weatherspoon Ditch | Baker, OR | 80 miles | SW |
| Hy Line Ditch | Kootenai, ID | 84.3 miles | NW |
| Mikelson Canal | Kootenai, ID | 84.8 miles | NW |
| Pump High Lateral | Spokane, WA | 85.2 miles | NW |
| South Branch Canal | Spokane, WA | 85.5 miles | NW |
| East Greenacres East Ditch | Kootenai, ID | 86.8 miles | NW |
| East Greenacres North Ditch | Kootenai, ID | 88 miles | NW |
| Spokane River Canal | Spokane, WA | 89.1 miles | NW |
| East Greenacres Main Ditch | Kootenai, ID | 89.4 miles | NW |
| Lower Valley Ditch | Wallowa, OR | 91.5 miles | SW |
| Cross Country Ditch | Wallowa, OR | 93.6 miles | SW |
| Wade Ditch | Wallowa, OR | 93.7 miles | SW |
| Clear Water Ditch | Wallowa, OR | 93.8 miles | SW |
| Chamberlin Ditch | Wallowa, OR | 94.1 miles | SW |
| Sheep Ridge Ditch | Wallowa, OR | 94.6 miles | SW |
| Poley-Allen Ditch | Wallowa, OR | 94.7 miles | SW |
| Island Ditch | Wallowa, OR | 94.8 miles | SW |
| Silver Lake Ditch | Wallowa, OR | 94.8 miles | SW |
| Williams Preston Hovet Ditch | Missoula, MT | 94.9 miles | NE |
| Granger Ditch | Wallowa, OR | 95 miles | SW |
| Farmers Ditch | Wallowa, OR | 95.1 miles | SW |
| Westside Ditch | Wallowa, OR | 95.2 miles | SW |
| Big Bend Ditch | Wallowa, OR | 95.3 miles | SW |
| Wrenn Dobbin Ditch | Wallowa, OR | 95.5 miles | SW |
| Swamp Creek Ditch | Sanders, MT | 95.8 miles | NE |
| Lower Alder Slope Ditch | Wallowa, OR | 95.9 miles | SW |
| Alder Slope Ditch | Wallowa, OR | 96.9 miles | SW |
| Hurricane Ditch | Wallowa, OR | 97.4 miles | SW |
| Wallowa Valley Improvement Canal | Wallowa, OR | 97.4 miles | SW |
| Coye Ditch | Wallowa, OR | 97.7 miles | SW |
| Allen Canyon Ditch | Wallowa, OR | 97.9 miles | SW |
| Moonshine Ditch | Wallowa, OR | 98.6 miles | SW |
| Consolidated Ditch | Wallowa, OR | 98.8 miles | SW |
| Silver Grange Ditch | Wallowa, OR | 99.4 miles | SW |
| Frenchtown Irrigation District Ditch | Missoula, MT | 101.2 miles | NE |
| McGinnis Ditch | Sanders, MT | 101.2 miles | NE |
| Revais Canal | Sanders, MT | 101.9 miles | NE |
| Revais Canal | Sanders, MT | 103.4 miles | NE |
| Lower Jocko J Canal | Sanders, MT | 104.5 miles | NE |
| Camas Canal | Sanders, MT | 105.2 miles | NE |
| Mission H Canal | Sanders, MT | 107.1 miles | NE |
| Alder Creek Ditch | Sanders, MT | 107.5 miles | NE |
| Lower Jocko Canal | Sanders, MT | 107.6 miles | NE |
| Camas D Canal | Sanders, MT | 107.8 miles | NE |
| Moiese 30-13 Lateral | Lake, MT | 108.3 miles | NE |
| Moiese A-30 Lateral | Lake, MT | 108.5 miles | NE |
| Bowlus Ditch | Umatilla, OR | 108.6 miles | SW |
| Camas B Canal | Sanders, MT | 108.9 miles | NE |
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