| Day Drainage Ditch | Lincoln, OR | 20.6 miles | SE |
| Whitby Ditch | Benton, OR | 41.8 miles | SE |
| Frazier Creek Ditch | Benton, OR | 42.3 miles | SE |
| Sidney Power Ditch | Marion, OR | 48.6 miles | NE |
| Albany Santiam Canal | Linn, OR | 51.9 miles | SE |
| Jefferson Ditch | Marion, OR | 52.7 miles | SE |
| Mission Ditch | Marion, OR | 52.8 miles | NE |
| Shelton Ditch | Marion, OR | 53 miles | NE |
| Sodom Ditch | Linn, OR | 53.6 miles | SE |
| Sidney Ditch | Marion, OR | 53.8 miles | SE |
| Perrin Lateral | Marion, OR | 56 miles | NE |
| Marion Ditch | Marion, OR | 57.1 miles | NE |
| Main Canal | Marion, OR | 58 miles | NE |
| Lake Labish Ditch | Marion, OR | 58.7 miles | NE |
| Highberger Ditch | Marion, OR | 59 miles | NE |
| Jones Ditch | Marion, OR | 59.5 miles | NE |
| Brownsville Ditch | Linn, OR | 60 miles | SE |
| Lebanon Santiam Canal | Linn, OR | 60.4 miles | SE |
| Salem Ditch | Marion, OR | 61 miles | NE |
| Peters Ditch | Linn, OR | 61.3 miles | SE |
| Moroney Canal | Tillamook, OR | 61.3 miles | NE |
| Amazon Creek Diversion Channel | Lane, OR | 62 miles | SE |
| Walker Ditch | Marion, OR | 64.4 miles | NE |
| McKenzie Ditch | Lane, OR | 68.6 miles | SE |
| Drescher Ditch | Marion, OR | 68.7 miles | NE |
| Q Street Canal | Lane, OR | 69 miles | SE |
| Lacomb Irrigation Canal | Linn, OR | 69.7 miles | SE |
| Lousignont Canal | Washington, OR | 72.6 miles | NE |
| Seely Ditch | Clackamas, OR | 73.8 miles | NE |
| Walterville Canal | Lane, OR | 76.4 miles | SE |
| Tunnel Millrace | Lane, OR | 78.8 miles | SE |
| Oswego Canal | Clackamas, OR | 79.3 miles | NE |
| Eugene Water and Electric Board Canal | Lane, OR | 82.2 miles | SE |
| Marquam Dry Lake Canal | Multnomah, OR | 88.2 miles | NE |
| Peninsula Drainage Canal | Multnomah, OR | 90.7 miles | NE |
| Big Ditch | Clark, WA | 99 miles | NE |
| Skipanon Waterway | Clatsop, OR | 99.1 miles | NE |
| Crown Zellerback Power Ditch | Clark, WA | 99.9 miles | NE |
| China Ditch | Clark, WA | 101.4 miles | NE |
| Uncle Tom Slough | Columbia, OR | 102.6 miles | NE |
| Ditch Number Eight | Cowlitz, WA | 110.4 miles | NE |
| Ditch Number Ten | Cowlitz, WA | 111 miles | NE |
| Ditch Number Six | Cowlitz, WA | 111.5 miles | NE |
| Lemolo Number 2 Canal | Douglas, OR | 130.4 miles | SE |
| Lemolo Canal Number 1 | Douglas, OR | 133.9 miles | SE |
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