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List of canals in Oregon
From Wikipedia, the free encyclopedia
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List of canals in Oregon contains all canals identified by the USGS in the U.S. state of Oregon. The USGS defines a canal as a manmade waterway used by watercraft or for drainage, irrigation, mining, or water power (ditch, lateral).[1]
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There are 661 listed as of December 4, 2008.
More information name, county ...
| name | county | elevation | coordinate | USGS Map | GNIS ID |
|---|---|---|---|---|---|
| A Canal | Klamath | 4,127 ft (1,258 m) | 42°10′31″N 121°42′01″W | Altamont | 1116746 |
| A Canal | Klamath | 4,150 ft (1,260 m) | 42°38′49″N 122°00′34″W | Mares Egg Spring | 1155306 |
| A Drain | Malheur | 2,155 ft (657 m) | 44°02′05″N 117°00′39″W | Malheur Butte | 1131829 |
| A Line Canal | Umatilla | 561 ft (171 m) | 45°49′34″N 119°16′43″W | Hermiston | 1116747 |
| Ady Canal | Klamath | 4,098 ft (1,249 m) | 42°01′59″N 121°50′37″W | Worden | 1161246 |
| Albany Santiam Canal | Linn | 259 ft (79 m) | 44°36′04″N 123°01′34″W | Tangent | 1116798 |
| Alder Slope Ditch | Wallowa | 4,354 ft (1,327 m) | 45°23′29″N 117°19′22″W | Enterprise | 1137094 |
| Allen Canyon Ditch | Wallowa | 5,604 ft (1,708 m) | 45°26′35″N 117°28′08″W | Lostine | 1137700 |
| Allen Ditch | Malheur | 2,959 ft (902 m) | 43°43′58″N 118°04′37″W | Juntura | 1116878 |
| Allen Ditch | Lake | 5,279 ft (1,609 m) | 42°25′40″N 120°05′49″W | Drake Peak NE | 1131109 |
| Allen Drain | Malheur | 2,211 ft (674 m) | 43°41′30″N 117°01′51″W | Adrian | 1116879 |
| Altnow Ditch | Harney | 3,658 ft (1,115 m) | 43°52′55″N 118°18′04″W | Cottonwood Reservoir | 1154208 |
| Amazon Creek Diversion Channel | Lane | 381 ft (116 m) | 44°04′32″N 123°13′45″W | Eugene West | 1116907 |
| Anawalt Drain | Malheur | 4,295 ft (1,309 m) | 43°01′58″N 117°19′36″W | Cow Lakes | 1116922 |
| Anderson Ditch | Malheur | 3,799 ft (1,158 m) | 42°42′45″N 117°48′49″W | Anderson Reservoir | 1130447 |
| Annex Canal | Malheur | 2,106 ft (642 m) | 44°13′46″N 116°58′44″W | Weiser South | 1116961 |
| Antelope Feeder Canal | Malheur | 4,370 ft (1,330 m) | 42°58′26″N 117°09′30″W | Antelope Reservoir | 1116974 |
| Arnold Canal | Deschutes | 3,917 ft (1,194 m) | 43°59′29″N 121°21′24″W | Lava Butte | 1137298 |
| Arritola Ditch | Malheur | 4,747 ft (1,447 m) | 42°43′14″N 117°05′54″W | Juniper Point | 1130441 |
| Ashcraft Flume | Lake | 4,892 ft (1,491 m) | 42°05′56″N 120°33′10″W | Fitzwater Point | 1137317 |
| Ashland Lateral | Jackson | 3,816 ft (1,163 m) | 42°09′43″N 122°30′40″W | Emigrant Lake | 1137320 |
| Ausmus Canal | Harney | 4,104 ft (1,251 m) | 43°24′25″N 118°51′06″W | Lawen | 1117095 |
| B Canal | Klamath | 4,127 ft (1,258 m) | 42°10′35″N 121°39′45″W | Altamont | 1117115 |
| B Canal | Klamath | 4,144 ft (1,263 m) | 42°37′14″N 121°59′59″W | Agency Lake | 1154981 |
| Bagley Ditch | Lake | 4,344 ft (1,324 m) | 42°38′25″N 120°30′59″W | Paisley | 1137404 |
| Baker Municipal Aqueduct | Baker | 4,485 ft (1,367 m) | 44°46′03″N 117°53′43″W | Wingville | 1164072 |
| Baldock Ditch | Baker | 3,422 ft (1,043 m) | 44°47′16″N 117°48′43″W | Baker City | 1164074 |
| Baldwin Ditch | Crook | 2,949 ft (899 m) | 44°14′46″N 120°52′24″W | Stearns Butte | 1153708 |
| Baldwin Ditch | Lake | 4,859 ft (1,481 m) | 42°11′35″N 120°28′29″W | Lakeview Airport | 1153747 |
| Baltimore Ditch | Josephine | 1,496 ft (456 m) | 42°13′29″N 123°15′33″W | Williams | 1137493 |
| Banks Ditch | Baker | 2,638 ft (804 m) | 44°34′18″N 117°27′43″W | Durkee | 1117223 |
| Basche Ditch | Baker | 2,762 ft (842 m) | 44°52′52″N 117°38′32″W | Keating NW | 1117286 |
| Beers Ditch | Malheur | 3,281 ft (1,000 m) | 44°21′05″N 117°38′49″W | Cow Valley East | 1131896 |
| Bend Feed Canal | Deschutes | 3,491 ft (1,064 m) | 44°05′31″N 121°19′39″W | Bend | 1153111 |
| Big Bend Ditch | Wallowa | 4,150 ft (1,260 m) | 45°21′57″N 117°11′43″W | Joseph | 1137974 |
| Big Creek Ditch | Union | 3,635 ft (1,108 m) | 44°57′46″N 117°36′44″W | Sawtooth Ridge | 1117608 |
| Big Flat Ditch | Baker | 3,944 ft (1,202 m) | 44°32′18″N 118°10′30″W | Unity Reservoir | 1138029 |
| Big Red S Canal | Harney | 4,117 ft (1,255 m) | 43°26′50″N 118°58′14″W | Redess | 1132013 |
| Biggs Ditch | Malheur | 2,339 ft (713 m) | 43°56′25″N 117°24′59″W | Vines Hill | 1129747 |
| Birch Creek Ditch | Malheur | 3,770 ft (1,150 m) | 44°23′45″N 117°41′49″W | Bridgeport | 1131888 |
| Bishop Ditch | Malheur | 2,507 ft (764 m) | 43°33′00″N 117°05′49″W | Graveyard Point | 1130425 |
| Black Willow Siphon | Malheur | 2,520 ft (770 m) | 43°41′45″N 117°10′49″W | Owyhee Dam | 1131226 |
| Blanton Drain | Malheur | 2,182 ft (665 m) | 44°00′30″N 117°02′44″W | Malheur Butte | 1131831 |
| Blodgett Ditch | Josephine | 1,680 ft (510 m) | 42°15′24″N 123°17′04″W | Murphy | 1155194 |
| Blue Mountain Ditch | Grant | 2,802 ft (854 m) | 44°24′23″N 119°12′10″W | Wolfinger Butte | 1152793 |
| Blue Springs Ditch | Klamath | 4,176 ft (1,273 m) | 42°41′24″N 122°02′52″W | Mares Egg Spring | 1134812 |
| Blume Zilkey Ditch | Baker | 3,583 ft (1,092 m) | 44°57′49″N 118°02′03″W | Rock Creek | 1117875 |
| Boston Drain | Malheur | 2,303 ft (702 m) | 43°55′55″N 117°19′14″W | Vale West | 1129748 |
| Bowlus Ditch | Umatilla | 1,470 ft (450 m) | 45°53′49″N 118°17′54″W | Bowlus Hill | 1638731 |
| Bridge Creek Canal | Harney | 4,173 ft (1,272 m) | 42°51′50″N 118°52′19″W | Page Springs | 1118071 |
| Bridgepoint Ditch | Jackson | 1,201 ft (366 m) | 42°16′39″N 123°13′18″W | Applegate | 1135262 |
| Brogan Ditch | Malheur | 2,562 ft (781 m) | 44°13′03″N 117°28′06″W | Jamieson | 1118097 |
| Brooks Ditch | Baker | 4,856 ft (1,480 m) | 44°56′26″N 117°14′07″W | Jimtown | 1138656 |
| Brosman Ditch | Malheur | 2,162 ft (659 m) | 44°02′21″N 117°01′43″W | Malheur Butte | 1118114 |
| Brown Loennig Ditch | Baker | 3,586 ft (1,093 m) | 44°54′20″N 118°01′23″W | Rock Creek | 1118129 |
| Brownell Ditch | Umatilla | 331 ft (101 m) | 45°55′14″N 119°18′42″W | Umatilla | 1118131 |
| Browns Feed Canal | Harney | 4,134 ft (1,260 m) | 43°10′14″N 118°16′44″W | South Fork Reservoir | 1132020 |
| Brownsville Ditch | Linn | 371 ft (113 m) | 44°23′26″N 122°57′01″W | Brownsville | 1118141 |
| Buchanan Ditch | Baker | 6,581 ft (2,006 m) | 45°02′16″N 117°04′06″W | Deadman Point | 1133858 |
| Buena Vista Canal | Harney | 4,131 ft (1,259 m) | 43°06′13″N 118°53′58″W | Jackass Butte | 1118258 |
| Bulger Ditch | Baker | 3,953 ft (1,205 m) | 44°57′53″N 118°03′02″W | Rock Creek | 1118265 |
| Bull Ditch | Harney | 4,108 ft (1,252 m) | 43°15′15″N 118°51′34″W | Malheur Lake West | 1132011 |
| Bullock Drain | Malheur | 2,251 ft (686 m) | 43°41′58″N 117°04′29″W | Adrian | 1118299 |
| Bully Creek Siphon | Malheur | 2,415 ft (736 m) | 43°59′42″N 117°21′57″W | Vale West | 1118302 |
| Busse Canal | Harney | 4,121 ft (1,256 m) | 43°11′55″N 118°50′55″W | Jackass Butte NE | 1118373 |
| Butte Ditch | Harney | 4,108 ft (1,252 m) | 43°15′15″N 118°53′24″W | The Narrows | 1132028 |
| Butte Drain | Malheur | 2,195 ft (669 m) | 44°00′45″N 117°06′14″W | Malheur Butte | 1131832 |
| Byron Ditch | Grant | 4,760 ft (1,450 m) | 44°09′25″N 118°51′34″W | Big Canyon | 1129509 |
| C Canal | Klamath | 4,091 ft (1,247 m) | 42°07′20″N 121°42′47″W | Lost River | 1118430 |
| C Canal | Klamath | 4,144 ft (1,263 m) | 42°37′09″N 121°59′34″W | Agency Lake | 1154982 |
| C-G Cutoff | Klamath | 4,091 ft (1,247 m) | 42°08′50″N 121°41′20″W | Altamont | 1118432 |
| Cables Ditch | Harney | 3,438 ft (1,048 m) | 43°26′30″N 118°14′04″W | McEwen Butte | 1131824 |
| Caledonia Canal | Klamath | 4,147 ft (1,264 m) | 42°17′11″N 121°55′37″W | Howard Bay | 1161299 |
| Camp Creek Ditch | Baker | 3,750 ft (1,140 m) | 44°29′10″N 118°05′09″W | Hereford | 1131458 |
| Carnes Ditch | Union | 3,825 ft (1,166 m) | 45°01′35″N 118°01′55″W | Tucker Flat | 1139382 |
| Cascade Canal | Klamath | 5,732 ft (1,747 m) | 42°25′04″N 122°14′07″W | Lake of the Woods North | 1139413 |
| Catherine Creek Highline Canal | Union | 2,779 ft (847 m) | 45°14′59″N 117°51′06″W | Union | 1130901 |
| Cavin Ditch | Baker | 4,265 ft (1,300 m) | 44°25′27″N 118°15′04″W | Rail Gulch | 1153973 |
| Center Canal | Harney | 4,144 ft (1,263 m) | 43°02′30″N 118°50′37″W | Diamond Swamp | 1118778 |
| Center Canal | Klamath | 4,098 ft (1,249 m) | 42°03′18″N 121°48′27″W | Worden | 1161308 |
| Central Alkali Drain | Canyon (ID) | 2,205 ft (672 m) | 43°44′13″N 117°01′57″W | Adrian | 371956 |
| Central Alkali Drain | Malheur | 2,205 ft (672 m) | 43°44′15″N 117°02′10″W | Adrian | 1118779 |
| Central Canal | Klamath | 4,147 ft (1,264 m) | 42°38′14″N 122°01′06″W | Mares Egg Spring | 1135755 |
| Central Lateral | Hood River | 1,545 ft (471 m) | 45°35′54″N 121°32′17″W | Parkdale | 1139544 |
| Central Oregon Canal | Deschutes | 3,366 ft (1,026 m) | 44°04′04″N 121°02′02″W | Alfalfa | 1139545 |
| Chambeam Ditch | Baker | 2,717 ft (828 m) | 44°34′54″N 117°30′32″W | Lost Basin | 1116727 |
| Chamberlin Ditch | Wallowa | 2,976 ft (907 m) | 45°34′12″N 117°34′06″W | Wallowa | 1116572 |
| Chance Lateral | Malheur | 2,382 ft (726 m) | 43°42′32″N 117°01′38″W | Adrian | 1118812 |
| China Creek Ditch | Baker | 4,101 ft (1,250 m) | 44°33′16″N 118°10′34″W | Unity Reservoir | 1139671 |
| China Ditch | Gilliam | 292 ft (89 m) | 45°43′11″N 120°12′09″W | Arlington | 1118906 |
| China Ditch | Jackson | 1,850 ft (560 m) | 42°10′50″N 123°01′10″W | Ruch | 1139674 |
| Clarks Creek Ditch | Baker | 3,635 ft (1,108 m) | 44°29′15″N 117°48′56″W | Wendt Butte | 1118977 |
| Clear Creek Ditch | Wasco | 3,228 ft (984 m) | 45°08′17″N 121°35′49″W | Post Point | 1139795 |
| Clear Water Ditch | Wallowa | 3,094 ft (943 m) | 45°32′44″N 117°31′13″W | Wallowa | 1139809 |
| Clearwater Canal Number 2 | Douglas | 3,225 ft (983 m) | 43°14′54″N 122°22′29″W | Garwood Butte | 1134857 |
| Cleary Ditch | Baker | 3,566 ft (1,087 m) | 44°30′03″N 117°57′18″W | Brannan Gulch | 1119008 |
| Cleary Ditch | Baker | 5,289 ft (1,612 m) | 44°36′41″N 118°00′04″W | Hereford | 1131457 |
| Clement Ditch | Baker | 3,556 ft (1,084 m) | 44°29′53″N 117°51′05″W | Wendt Butte | 1119012 |
| Cleveland Ditch | Harney | 4,108 ft (1,252 m) | 43°59′40″N 118°41′30″W | Van | 1160907 |
| Cloverdale Ditch | Deschutes | 3,104 ft (946 m) | 44°18′00″N 121°27′55″W | Henkle Butte | 1139857 |
| Coates Drain | Malheur | 2,402 ft (732 m) | 43°37′11″N 117°02′05″W | Graveyard Point | 1119061 |
| Coker Butte Lateral | Jackson | 1,283 ft (391 m) | 42°23′54″N 122°52′50″W | Sams Valley | 1134760 |
| Cole Ditch | Malheur | 2,730 ft (830 m) | 44°15′43″N 117°32′43″W | Becker Creek | 1119130 |
| Colt Ware Ditch | Baker | 3,691 ft (1,125 m) | 44°29′36″N 118°07′41″W | Unity | 1153975 |
| Columbia Southern Canal | Deschutes | 3,481 ft (1,061 m) | 44°08′19″N 121°23′21″W | Tumalo Dam | 1140015 |
| Conn Ditch | Lake | 4,482 ft (1,366 m) | 42°41′50″N 120°34′14″W | Paisley | 1153796 |
| Consolidated Ditch | Wallowa | 4,485 ft (1,367 m) | 45°20′32″N 117°16′58″W | Chief Joseph Mountain | 1140048 |
| Cook Ditch | Baker | 3,697 ft (1,127 m) | 44°30′00″N 118°07′20″W | Beaverdam Creek | 1153974 |
| Corbell Ditch | Klamath | 4,265 ft (1,300 m) | 42°34′34″N 121°41′34″W | S'Ocholis Canyon | 1154826 |
| Cornstock Ditch | Jackson | 1,568 ft (478 m) | 42°09′34″N 123°02′59″W | Ruch | 1155053 |
| Corral Ditch | Baker | 3,405 ft (1,038 m) | 44°47′46″N 117°48′24″W | Baker City | 1164082 |
| Correll Ditch | Baker | 3,465 ft (1,056 m) | 44°46′30″N 117°51′22″W | Baker City | 1164083 |
| Cory Ditch | Harney | 4,101 ft (1,250 m) | 43°25′00″N 118°30′39″W | Crane | 1132056 |
| Coughanour Ditch | Union | 3,632 ft (1,107 m) | 45°01′39″N 118°00′46″W | Tucker Flat | 1140251 |
| Courtney Ditch | Umatilla | 574 ft (175 m) | 45°46′36″N 119°15′50″W | Hermiston | 1119401 |
| Coye Ditch | Wallowa | 4,272 ft (1,302 m) | 45°20′34″N 117°14′17″W | Joseph | 1140304 |
| Coyote Drain | Malheur | 2,146 ft (654 m) | 44°09′50″N 116°55′44″W | Weiser South | 1129769 |
| Coyote Gulch Siphon | Malheur | 2,461 ft (750 m) | 43°38′00″N 117°05′24″W | Adrian | 1131223 |
| Cram Ditch | Jefferson | 1,844 ft (562 m) | 44°47′58″N 120°55′53″W | Willowdale | 1119504 |
| Cranston Ditch | Baker | 2,700 ft (820 m) | 44°51′59″N 117°35′00″W | Keating | 1158185 |
| Crater Canal | Jackson | 1,348 ft (411 m) | 42°28′59″N 122°47′49″W | Eagle Point | 1135368 |
| Crater Creek Ditch | Deschutes | 6,850 ft (2,090 m) | 44°02′50″N 121°40′25″W | Broken Top | 1140395 |
| Cross Country Ditch | Wallowa | 3,323 ft (1,013 m) | 45°29′39″N 117°25′09″W | Lostine | 1140478 |
| Crump Ditch | Lake | 4,590 ft (1,400 m) | 42°11′00″N 119°53′29″W | Adel | 1131216 |
| Crutcher Ditch | Malheur | 3,796 ft (1,157 m) | 42°43′00″N 117°48′56″W | Anderson Reservoir | 1130446 |
| Cummings Ditch | Grant | 2,477 ft (755 m) | 44°26′55″N 119°32′04″W | Dayville | 1153770 |
| Curop Ditch | Baker | 3,970 ft (1,210 m) | 44°28′35″N 118°12′19″W | Unity | 1153981 |
| Curtis Ditch | Lake | 4,308 ft (1,313 m) | 42°30′45″N 120°18′24″W | Coglan Buttes SE | 1131004 |
| D Canal | Klamath | 4,075 ft (1,242 m) | 42°02′00″N 121°26′51″W | Malin | 1119652 |
| Danforth Ditch | Harney | 4,462 ft (1,360 m) | 43°39′35″N 118°54′19″W | Devine Ridge South | 1154187 |
| Danley Creek Canal | Jackson | 4,701 ft (1,433 m) | 42°17′54″N 122°21′24″W | Brown Mountain | 1116642 |
| Day Drainage Ditch | Lincoln | 23 ft (7.0 m) | 44°26′59″N 124°02′12″W | Waldport | 1135272 |
| Dead Ox Canal | Malheur | 2,123 ft (647 m) | 44°07′19″N 116°55′45″W | Payette | 1119746 |
| Dee Flat Ditch | Hood River | 1,322 ft (403 m) | 45°33′37″N 121°40′08″W | Dee | 1140781 |
| Diamond Canal | Harney | 4,153 ft (1,266 m) | 43°02′14″N 118°44′25″W | Diamond | 1119921 |
| Diamond Drain | Harney | 4,144 ft (1,263 m) | 43°03′58″N 118°47′54″W | Diamond Swamp | 1119923 |
| Dillon Ditch | Umatilla | 561 ft (171 m) | 45°47′16″N 119°16′15″W | Hermiston | 1119941 |
| Dobbin Ditch | Union | 2,785 ft (849 m) | 45°21′29″N 118°04′08″W | La Grande | 1164089 |
| Domby Ditch | Malheur | 2,110 ft (640 m) | 44°16′00″N 117°06′19″W | Porters Flat | 1158635 |
| Dork Canal | Malheur | 2,172 ft (662 m) | 44°01′00″N 117°02′17″W | Malheur Butte | 1158213 |
| Dorothy Ditch | Umatilla | 1,371 ft (418 m) | 45°53′44″N 118°18′24″W | Bowlus Hill | 1638732 |
| Drescher Ditch | Marion | 151 ft (46 m) | 45°07′04″N 122°45′29″W | Silverton | 1130466 |
| Drewsey Reclamation Company Ditch | Harney | 3,576 ft (1,090 m) | 43°49′29″N 118°26′07″W | Drewsey | 1120082 |
| Dry Gulch Ditch | Baker | 2,779 ft (847 m) | 44°48′49″N 117°12′41″W | Richland | 1141337 |
| Dufur Ditch | Wasco | 1,398 ft (426 m) | 45°26′32″N 121°09′05″W | Dufur West | 1130114 |
| Duncan Ditch | Baker | 2,762 ft (842 m) | 44°53′48″N 117°39′44″W | Keating NW | 1120209 |
| Duncan Ditch | Malheur | 3,819 ft (1,164 m) | 44°18′50″N 117°57′14″W | Ironside | 1131939 |
| E Canal | Klamath | 4,121 ft (1,256 m) | 42°11′44″N 121°35′58″W | Dairy | 1120252 |
| Eagle Point Irrigation Canal | Jackson | 2,274 ft (693 m) | 42°33′42″N 122°39′28″W | Obenchain Mountain | 1141486 |
| East Canal | Klamath | 4,163 ft (1,269 m) | 42°12′00″N 121°19′39″W | Lorella | 1133076 |
| East Canal | Lake | 4,797 ft (1,462 m) | 42°06′40″N 120°31′32″W | Fitzwater Point | 1141513 |
| East Fork Main Canal | Hood River | 1,657 ft (505 m) | 45°33′32″N 121°33′07″W | Parkdale | 1141581 |
| East Grain Camp Canal | Harney | 4,147 ft (1,264 m) | 43°01′51″N 118°49′40″W | Diamond Swamp | 1120334 |
| East Lateral | Jackson | 2,051 ft (625 m) | 42°15′18″N 122°44′33″W | Rio Canyon | 1141625 |
| East Lateral | Klamath | 4,183 ft (1,275 m) | 42°06′25″N 121°12′31″W | Langell Valley | 1158222 |
| East Malone Lateral | Klamath | 4,160 ft (1,270 m) | 42°01′07″N 121°13′08″W | Langell Valley | 1120342 |
| East Side Canal | Harney | 4,209 ft (1,283 m) | 42°49′29″N 118°51′43″W | Page Springs | 1116729 |
| East Side Ditch | Malheur | 2,621 ft (799 m) | 44°15′12″N 117°30′23″W | Becker Creek | 1133928 |
| Easterday Ditch | Malheur | 4,462 ft (1,360 m) | 43°30′45″N 118°00′19″W | Mosquito Mountain | 1129744 |
| Echave Ditch | Malheur | 4,895 ft (1,492 m) | 42°13′35″N 117°53′54″W | Oregon Canyon Ranch | 1134242 |
| Eddington Ditch | Grant | 2,690 ft (820 m) | 44°25′40″N 119°15′19″W | Shop Gulch | 1153717 |
| Elder Ditch | Klamath | 4,344 ft (1,324 m) | 42°27′10″N 121°06′44″W | Bly | 1155311 |
| Eldorado Ditch | Baker | 5,082 ft (1,549 m) | 44°23′03″N 118°20′55″W | Rail Gulch | 1141723 |
| Elliot Ditch | Baker | 3,422 ft (1,043 m) | 44°29′44″N 117°47′00″W | Wendt Butte | 1120483 |
| Ellis Ditch | Union | 3,392 ft (1,034 m) | 44°59′59″N 117°59′40″W | Haines | 1120486 |
| Elmer Ditch | Union | 3,583 ft (1,092 m) | 45°13′17″N 117°45′44″W | Union | 1158682 |
| Elms Ditch | Baker | 4,124 ft (1,257 m) | 44°25′53″N 118°13′42″W | Unity | 1141841 |
| Emele Ditch | Baker | 2,789 ft (850 m) | 44°54′37″N 117°39′05″W | Keating NW | 1120491 |
| Enterprise Ditch | Grant | 2,894 ft (882 m) | 44°24′52″N 119°04′13″W | Mount Vernon | 1152796 |
| Erickson Ditch | Wheeler | 4,314 ft (1,315 m) | 44°27′00″N 119°47′19″W | Antone | 1158618 |
| Erwin Ditch | Baker | 2,756 ft (840 m) | 44°54′14″N 117°39′04″W | Keating NW | 1158225 |
| Estes Ditch | Baker | 3,363 ft (1,025 m) | 44°50′13″N 117°51′37″W | Baker City | 1164091 |
| Eugene Water & Electric Board Canal | Lane | 735 ft (224 m) | 44°06′45″N 122°39′16″W | Leaburg | 1120531 |
| Evans Creek Lateral | Jackson | 1,132 ft (345 m) | 42°25′46″N 123°11′34″W | Rogue River | 1135238 |
| Ewing Ditch | Morrow | 584 ft (178 m) | 45°38′44″N 119°57′19″W | Dalreed Butte | 1129824 |
| F Canal | Klamath | 4,114 ft (1,254 m) | 42°07′50″N 121°31′16″W | Dairy | 1120549 |
| F-1 Lateral | Klamath | 4,859 ft (1,481 m) | 42°09′00″N 121°34′49″W | Dairy | 1132677 |
| Farmers Ditch | Baker | 4,111 ft (1,253 m) | 44°41′05″N 118°06′19″W | Phillips Lake | 1120635 |
| Farmers Ditch | Malheur | 2,342 ft (714 m) | 43°56′50″N 117°21′15″W | Vale West | 1120636 |
| Farmers Ditch | Hood River | 850 ft (260 m) | 45°39′18″N 121°34′18″W | Hood River | 1142024 |
| Farmers Ditch | Wallowa | 4,213 ft (1,284 m) | 45°21′32″N 117°10′04″W | Joseph | 1142025 |
| Feed Canal | Umatilla | 636 ft (194 m) | 45°49′30″N 119°16′12″W | Hermiston | 1120657 |
| Feed Canal | Harney | 4,199 ft (1,280 m) | 43°08′00″N 118°37′59″W | Barton Lake | 1129720 |
| Fish Creek Canal | Douglas | 3,035 ft (925 m) | 43°14′29″N 122°27′01″W | Fish Creek Desert | 1134856 |
| Fister Ditch | Harney | 3,848 ft (1,173 m) | 43°20′45″N 118°25′39″W | Circle Bar | 1131825 |
| Fitzgerald Ditches | Lake | 5,321 ft (1,622 m) | 42°29′10″N 120°04′29″W | Drake Peak NE | 1131107 |
| Five and Seventenths Canal | Owyhee (ID) | 2,477 ft (755 m) | 43°38′19″N 117°02′34″W | Adrian | 372712 |
| Five and Seventenths Canal | Malheur | 2,526 ft (770 m) | 43°37′19″N 117°04′03″W | Graveyard Point | 1120798 |
| Foothill Ditch | Baker | 2,858 ft (871 m) | 44°53′10″N 117°08′54″W | Jimtown | 1153068 |
| Ford Ingram Ditch | Baker | 5,403 ft (1,647 m) | 44°53′40″N 118°05′47″W | Rock Creek | 1120877 |
| Fort Creek Ditch | Klamath | 4,147 ft (1,264 m) | 42°38′39″N 121°57′14″W | Fort Klamath | 1154978 |
| Fourmile Canal | Klamath | 4,147 ft (1,264 m) | 42°36′29″N 122°03′18″W | Crystal Spring | 1167675 |
| Frazier Creek Ditch | Benton | 213 ft (65 m) | 44°37′16″N 123°13′11″W | Riverside | 1120962 |
| Frederick Lateral | Jackson | 2,146 ft (654 m) | 42°13′22″N 122°46′57″W | Talent | 1142435 |
| Frog Creek Ditch | Wasco | 3,422 ft (1,043 m) | 45°10′06″N 121°38′29″W | Wapinitia Pass | 1121006 |
| Furnish Ditch | Umatilla | 682 ft (208 m) | 45°46′37″N 119°10′54″W | Stanfield | 1158253 |
| G Canal | Klamath | 4,091 ft (1,247 m) | 42°05′54″N 121°40′05″W | Lost River | 1121027 |
| G-Three Canal | Klamath | 4,085 ft (1,245 m) | 42°02′20″N 121°33′26″W | Merrill | 1121029 |
| Gardner Mill Race Ditch | Baker | 3,573 ft (1,089 m) | 44°59′39″N 118°03′04″W | Rock Creek | 1121061 |
| Gekeler Ditch | Union | 2,717 ft (828 m) | 45°19′13″N 118°01′33″W | La Grande | 1164094 |
| Gellerman Canal | Malheur | 2,277 ft (694 m) | 44°00′57″N 117°15′23″W | Willowcreek | 1166655 |
| Gerwick Ditch | Klamath | 4,518 ft (1,377 m) | 42°45′49″N 121°48′14″W | Fuego | 1154990 |
| Gibson Drain | Malheur | 2,244 ft (684 m) | 43°41′23″N 117°04′53″W | Adrian | 1121122 |
| Gill Ditch | Crook | 4,554 ft (1,388 m) | 44°22′04″N 120°11′26″W | Williams Prairie | 1157544 |
| Glacier Ditch | Hood River | 2,674 ft (815 m) | 45°27′59″N 121°35′36″W | Dog River | 1153202 |
| Gold Hill Irrigation District Canal | Jackson | 1,066 ft (325 m) | 42°25′34″N 123°06′19″W | Gold Hill | 1135237 |
| Golden Gate Canal | Malheur | 2,329 ft (710 m) | 43°42′51″N 117°01′52″W | Adrian | 1121220 |
| Goulden Canal | Harney | 4,108 ft (1,252 m) | 43°15′33″N 119°14′54″W | Northwest Harney Lake | 1133761 |
| Grande Ronde Ditch | Union | 2,717 ft (828 m) | 45°18′14″N 118°01′40″W | La Grande | 1164096 |
| Granger Ditch | Wallowa | 3,963 ft (1,208 m) | 45°23′13″N 117°14′11″W | Joseph NW | 1142910 |
| Gray Lateral | Lake | 4,770 ft (1,450 m) | 42°10′42″N 120°26′04″W | Lakeview Airport | 1153749 |
| Greener Ditch | Baker | 6,345 ft (1,934 m) | 45°02′17″N 117°03′40″W | Deadman Point | 1133854 |
| Grout Ditch | Union | 3,461 ft (1,055 m) | 45°08′27″N 117°58′46″W | Craig Mountain | 1130906 |
| H V I Company Ditch | Harney | 4,144 ft (1,263 m) | 43°37′40″N 118°44′56″W | Buchanan | 1154186 |
| Hall Ditch | Wheeler | 3,428 ft (1,045 m) | 44°32′19″N 120°08′39″W | Mitchell | 1157460 |
| Halliday Drain | Malheur | 2,182 ft (665 m) | 44°00′55″N 117°01′14″W | Malheur Butte | 1131830 |
| Hammel Lateral | Jackson | 1,614 ft (492 m) | 42°32′59″N 122°46′23″W | Shady Cove | 1121541 |
| Hanley North Canal | Jackson | 2,116 ft (645 m) | 42°25′26″N 122°33′27″W | Lakecreek | 1116588 |
| Hanley South Canal | Jackson | 2,090 ft (640 m) | 42°24′31″N 122°34′11″W | Lakecreek | 1116589 |
| Happy Valley Ditch | Malheur | 3,383 ft (1,031 m) | 42°50′32″N 117°37′54″W | Rome | 1143295 |
| Harper Southside Canal | Malheur | 2,507 ft (764 m) | 43°51′35″N 117°35′44″W | Harper | 1131817 |
| Hawley Ditch | Baker | 4,245 ft (1,294 m) | 44°43′01″N 118°09′00″W | Sumpter | 1143386 |
| Hendrix Siphon | Malheur | 2,444 ft (745 m) | 44°00′48″N 117°23′49″W | Hope Butte | 1121756 |
| Hereford Ditch | Baker | 3,665 ft (1,117 m) | 44°30′12″N 118°03′34″W | Beaverdam Creek | 1131456 |
| Hermiston Ditch | Umatilla | 443 ft (135 m) | 45°51′01″N 119°16′35″W | Hermiston | 1121772 |
| High Line Canal | Klamath | 4,117 ft (1,255 m) | 42°02′14″N 121°23′47″W | Malin | 1121804 |
| High Line Canal | Umatilla | 620 ft (190 m) | 45°46′33″N 119°22′20″W | Hermiston | 1121805 |
| High Line Ditch | Klamath | 4,219 ft (1,286 m) | 42°07′49″N 121°19′55″W | Lorella | 1121806 |
| High Line Ditch | Malheur | 2,861 ft (872 m) | 44°13′27″N 117°32′01″W | Brogan | 1121807 |
| High Line Ditch | Lake | 4,833 ft (1,473 m) | 42°25′40″N 120°15′19″W | Valley Falls | 1131007 |
| High Line Ditch | Baker | 3,747 ft (1,142 m) | 44°30′00″N 118°08′22″W | Unity Reservoir | 1153983 |
| Highberger Ditch | Marion | 364 ft (111 m) | 44°50′24″N 122°51′59″W | Stayton | 1130397 |
| Highland Ditch | Wasco | 2,028 ft (618 m) | 45°15′11″N 121°19′13″W | Friend | 1143587 |
| Highline Canal | Josephine | 1,030 ft (310 m) | 42°25′27″N 123°16′58″W | Grants Pass | 1143590 |
| Highline Ditch | Wasco | 1,161 ft (354 m) | 45°15′17″N 121°08′46″W | Postage Stamp Butte | 1121825 |
| Highline Ditch | Harney | 4,213 ft (1,284 m) | 43°07′20″N 118°40′39″W | Diamond | 1129719 |
| Highline Lateral | Hood River | 1,093 ft (333 m) | 45°37′06″N 121°33′45″W | Parkdale | 1136971 |
| Hobbs Ditch | Klamath | 4,511 ft (1,375 m) | 42°45′44″N 121°49′44″W | Fuego | 1154989 |
| Hoffman Ditch | Crook | 2,976 ft (907 m) | 44°10′29″N 120°50′44″W | Stearns Butte | 1130935 |
| Holloway Ditch | Harney | 4,770 ft (1,450 m) | 42°05′55″N 118°26′57″W | Windy Point | 1157740 |
| Holly Drain | Malheur | 2,244 ft (684 m) | 43°42′09″N 117°04′02″W | Adrian | 1121922 |
| Hope Ditch | Malheur | 2,244 ft (684 m) | 44°00′25″N 117°13′57″W | Henry Gulch | 1133398 |
| Hope Drain | Malheur | 2,234 ft (681 m) | 43°59′58″N 117°12′22″W | Vale East | 1121975 |
| Hopkins Canal | Jackson | 1,332 ft (406 m) | 42°20′49″N 122°54′09″W | Medford West | 1121978 |
| Hotchkiss Ditch | Lake | 4,823 ft (1,470 m) | 42°17′00″N 120°24′09″W | Big Baldy | 1158693 |
| Howard Prairie Canal | Jackson | 4,521 ft (1,378 m) | 42°09′14″N 122°22′29″W | Little Chinquapin Mountain | 1160748 |
| Howell Ditch | Baker | 2,254 ft (687 m) | 44°46′15″N 117°11′34″W | Richland | 1158582 |
| Hubble Ditch | Malheur | 3,471 ft (1,058 m) | 42°51′21″N 117°43′35″W | Rome | 1122095 |
| Hudson Bay Canal | Umatilla | 820 ft (250 m) | 45°58′22″N 118°26′40″W | Milton-Freewater | 1122102 |
| Huff Ditch | Baker | 5,361 ft (1,634 m) | 45°01′00″N 117°01′11″W | Deadman Point | 1133859 |
| Hunt Ditch | Umatilla | 630 ft (190 m) | 45°44′26″N 119°16′37″W | Service Buttes | 1122141 |
| Hunter Ditch | Malheur | 4,229 ft (1,289 m) | 44°01′31″N 118°06′57″W | Hunter Mountain | 1637912 |
| Hurricane Ditch | Wallowa | 4,144 ft (1,263 m) | 45°21′50″N 117°16′36″W | Chief Joseph Mountain | 1143960 |
| Hutchinson Ditch | Baker | 3,691 ft (1,125 m) | 44°59′08″N 118°02′56″W | Rock Creek | 1122173 |
| I Canal | Umatilla | 499 ft (152 m) | 45°49′59″N 119°18′59″W | Hermiston | 1129829 |
| I N Young Ditch | Baker | 2,290 ft (700 m) | 44°47′20″N 117°11′04″W | Richland | 1158580 |
| Imbler Drain | Malheur | 2,224 ft (678 m) | 43°43′56″N 117°01′50″W | Adrian | 1122190 |
| Independence Creek Ditch | Baker | 3,914 ft (1,193 m) | 44°29′15″N 117°57′49″W | Devils Heel | 1131954 |
| Island Ditch | Wallowa | 3,875 ft (1,181 m) | 45°23′55″N 117°15′32″W | Enterprise | 1144133 |
| J Canal | Klamath | 4,045 ft (1,233 m) | 42°00′15″N 121°27′21″W | Malin | 1122308 |
| J-1 Canal | Klamath | 4,052 ft (1,235 m) | 42°00′13″N 121°32′31″W | Merrill | 1122314 |
| J-H Canal | Malheur | 2,323 ft (708 m) | 43°54′15″N 117°18′08″W | Vale West | 1122313 |
| Jacobsen Ditch | Baker | 3,268 ft (996 m) | 44°58′12″N 117°52′49″W | Haines | 1122369 |
| Jefferson Ditch | Marion | 256 ft (78 m) | 44°42′38″N 122°59′21″W | Crabtree | 1156648 |
| Jerome Prairie Lateral | Josephine | 1,050 ft (320 m) | 42°23′16″N 123°24′24″W | Wilderville | 1135423 |
| Johnson Ditch | Harney | 3,842 ft (1,171 m) | 43°54′25″N 118°34′24″W | Moffit Table | 1163977 |
| Jones Canal | Lake | 4,311 ft (1,314 m) | 42°39′51″N 120°30′40″W | Paisley | 1144373 |
| Jones Ditch | Marion | 157 ft (48 m) | 45°03′09″N 122°55′27″W | Gervais | 1122511 |
| Jonesboro Canal | Malheur | 2,821 ft (860 m) | 43°47′45″N 117°56′04″W | Jonesboro | 1131800 |
| Jordan Drain | Malheur | 2,195 ft (669 m) | 43°59′47″N 117°05′56″W | Cairo | 1122530 |
| Juntura Investment Company Canal | Malheur | 3,081 ft (939 m) | 43°45′45″N 118°07′04″W | Stemler Ridge | 1131763 |
| Kanehinke Ditch | Malheur | 3,881 ft (1,183 m) | 42°40′51″N 117°53′41″W | Flat Top Mountain | 1130449 |
| Kelly Lateral | Wasco | 2,064 ft (629 m) | 45°07′23″N 121°15′01″W | Maupin SW | 1153132 |
| Kelsey Wilson Ditch | Baker | 3,383 ft (1,031 m) | 44°59′00″N 117°56′10″W | Haines | 1122679 |
| Kennedy Ditch | Baker | 3,169 ft (966 m) | 44°59′15″N 117°38′49″W | Keating NW | 1122683 |
| Keno Canal | Klamath | 4,127 ft (1,258 m) | 42°13′37″N 121°47′52″W | Klamath Falls | 1135524 |
| Kerby Ditch | Josephine | 1,276 ft (389 m) | 42°10′33″N 123°39′31″W | Cave Junction | 1144565 |
| King Drain | Malheur | 2,218 ft (676 m) | 43°59′08″N 117°09′25″W | Vale East | 1122749 |
| Kingman Drain | Malheur | 2,215 ft (675 m) | 43°45′58″N 117°03′33″W | Owyhee | 1122759 |
| Kingman Lateral | Malheur | 2,526 ft (770 m) | 43°43′51″N 117°08′42″W | Owyhee Dam | 1122760 |
| Kittredge Canal | Klamath | 4,524 ft (1,379 m) | 42°56′59″N 121°36′59″W | Wildhorse Ridge | 1155000 |
| Klamath Strait | Klamath | 4,098 ft (1,249 m) | 42°04′43″N 121°49′49″W | Worden | 1161407 |
| Klamath Strait Drain | Klamath | 4,091 ft (1,247 m) | 42°01′57″N 121°47′25″W | Worden | 226642 |
| Krumbo Canal | Harney | 4,160 ft (1,270 m) | 42°58′46″N 118°51′03″W | Krumbo Reservoir | 1122846 |
| Kueny Ditch | Harney | 4,098 ft (1,249 m) | 42°27′01″N 118°36′40″W | Andrews | 1122856 |
| L Canal | Umatilla | 492 ft (150 m) | 45°51′49″N 119°12′34″W | Stanfield | 1129796 |
| La Grande Aqueduct | Union | 4,383 ft (1,336 m) | 45°13′44″N 118°10′09″W | La Grande Reservoir | 1130988 |
| Lacomb Irrigation Canal | Linn | 915 ft (279 m) | 44°35′29″N 122°39′34″W | Lacomb | 1122882 |
| Ladd Creek Pickup Ditch | Union | 2,697 ft (822 m) | 45°15′37″N 117°57′56″W | Conley | 1122886 |
| Lake Labish Ditch | Marion | 138 ft (42 m) | 45°01′57″N 122°55′54″W | Gervais | 1157945 |
| Lateral 197 | Malheur | 2,395 ft (730 m) | 43°59′12″N 117°21′40″W | Vale West | 1166670 |
| Lateral B | Deschutes | 3,081 ft (939 m) | 44°14′18″N 121°13′18″W | Forked Horn Butte | 1144853 |
| Lateral C | Deschutes | 3,005 ft (916 m) | 44°16′26″N 121°11′59″W | Redmond | 1122971 |
| Lateral E | Deschutes | 3,008 ft (917 m) | 44°17′24″N 121°09′24″W | Redmond | 1129581 |
| Lateral F | Deschutes | 2,802 ft (854 m) | 44°20′20″N 121°11′32″W | Redmond | 1122972 |
| Lateral H | Deschutes | 2,861 ft (872 m) | 44°21′46″N 121°10′30″W | Redmond | 1144854 |
| Lateral J | Deschutes | 2,746 ft (837 m) | 44°20′59″N 121°14′59″W | Redmond | 1129579 |
| Laycock Long Ditch | Grant | 3,005 ft (916 m) | 44°25′24″N 119°01′32″W | Mount Vernon | 1152795 |
| Lebanon Santiam Canal | Linn | 364 ft (111 m) | 44°30′45″N 122°52′42″W | Lebanon | 1123016 |
| Lemolo Canal Number 1 | Douglas | 4,140 ft (1,260 m) | 43°20′19″N 122°12′49″W | Lemolo Lake | 1134866 |
| Lemolo Number 2 Canal | Douglas | 3,278 ft (999 m) | 43°19′24″N 122°20′24″W | Potter Mountain | 1155264 |
| Lemons Ditch | Grant | 2,825 ft (861 m) | 44°24′55″N 119°08′04″W | Wolfinger Butte | 1153716 |
| Lenz Lateral | Umatilla | 673 ft (205 m) | 45°49′52″N 119°08′15″W | Stanfield | 1123044 |
| Lewis Ditch | Wheeler | 3,642 ft (1,110 m) | 44°31′14″N 120°19′14″W | Lawson Mountain | 1153832 |
| Lillard Ditch | Baker | 3,373 ft (1,028 m) | 44°55′20″N 117°51′25″W | Magpie Peak | 1145006 |
| Little Butte Creek Siphon | Jackson | 1,378 ft (420 m) | 42°28′36″N 122°44′59″W | Brownsboro | 1123145 |
| Little Valley Lateral | Malheur | 2,589 ft (789 m) | 43°52′37″N 117°29′07″W | Vines Hill | 1123305 |
| Littlefield Ditch | Baker | 4,311 ft (1,314 m) | 44°41′54″N 117°54′19″W | Blue Canyon | 1123322 |
| Locket Gulch Siphon | Malheur | 2,497 ft (761 m) | 43°53′13″N 117°05′49″W | Cairo | 1123334 |
| Lone Pine Ditch | Union | 3,724 ft (1,135 m) | 45°01′35″N 118°04′18″W | Tucker Flat | 1145356 |
| Lorella Drain | Klamath | 4,150 ft (1,260 m) | 42°08′15″N 121°15′30″W | Lorella | 1157069 |
| Lorella Lateral | Klamath | 4,160 ft (1,270 m) | 42°07′50″N 121°15′46″W | Lorella | 1157070 |
| Lost Boulder Ditch | Wasco | 3,133 ft (955 m) | 45°08′57″N 121°28′35″W | Rock Creek Reservoir | 1145494 |
| Lousignont Canal | Washington | 174 ft (53 m) | 45°34′22″N 123°08′29″W | Gales Creek | 1157972 |
| Love Ditch | Baker | 3,445 ft (1,050 m) | 44°45′47″N 117°30′17″W | Keating | 1158335 |
| Love Loney Ditch | Umatilla | 538 ft (164 m) | 45°59′19″N 118°34′54″W | Waterman | 1129686 |
| Low Line Canal | Klamath | 4,094 ft (1,248 m) | 42°01′22″N 121°22′51″W | Malin | 1135809 |
| Low Line Ditch | Klamath | 4,157 ft (1,267 m) | 42°09′24″N 121°20′40″W | Lorella | 1123544 |
| Low Line Ditch | Malheur | 2,713 ft (827 m) | 44°14′03″N 117°31′27″W | Brogan | 1158093 |
| Low Line Ditch | Hood River | 1,391 ft (424 m) | 45°36′38″N 121°38′15″W | Dee | 1158336 |
| Lower Alder Slope Ditch | Wallowa | 3,927 ft (1,197 m) | 45°24′13″N 117°18′41″W | Enterprise | 1123551 |
| Lower Ditch | Malheur | 2,188 ft (667 m) | 44°07′06″N 116°56′54″W | Payette | 1123561 |
| Lower East Lateral | Jackson | 1,706 ft (520 m) | 42°14′13″N 122°44′59″W | Ashland | 1145616 |
| Lower Fisher Long Ditch | Baker | 3,615 ft (1,102 m) | 44°55′20″N 118°01′27″W | Rock Creek | 1123563 |
| Lower Marsh Canal | Lake | 4,288 ft (1,307 m) | 42°34′05″N 120°22′59″W | Tucker Hill | 1153755 |
| Lower Pump Canal | Malheur | 2,241 ft (683 m) | 43°58′47″N 117°09′18″W | Vale East | 1123584 |
| Lower Sevenmile Ditch | Klamath | 4,157 ft (1,267 m) | 42°40′16″N 122°03′24″W | Mares Egg Spring | 1134811 |
| Lower Valley Ditch | Wallowa | 2,864 ft (873 m) | 45°36′33″N 117°33′01″W | Wallowa | 1145643 |
| Luce Ditch | Grant | 3,025 ft (922 m) | 44°25′16″N 118°59′31″W | John Day | 1157835 |
| Luce Ditch | Lake | 4,642 ft (1,415 m) | 42°47′30″N 120°06′34″W | Coleman Hills | 1158716 |
| Lynns Ditch | Malheur | 4,514 ft (1,376 m) | 44°25′15″N 117°50′25″W | Wendt Butte | 1123637 |
| Lynns Ditch | Malheur | 3,993 ft (1,217 m) | 44°25′18″N 117°44′14″W | Bridgeport | 1123638 |
| M Canal | Umatilla | 486 ft (148 m) | 45°52′39″N 119°15′42″W | Umatilla | 1123651 |
| Main Canal | Marion | 371 ft (113 m) | 44°47′37″N 122°52′55″W | Turner | 1166675 |
| Malheur Siphon | Malheur | 2,257 ft (688 m) | 43°58′52″N 117°03′27″W | Cairo | 1123713 |
| Mallett Drain | Malheur | 2,195 ft (669 m) | 43°59′40″N 117°06′58″W | Cairo | 1123717 |
| Mansfield Ditch | Baker | 3,504 ft (1,068 m) | 44°56′56″N 118°01′15″W | Rock Creek | 1123735 |
| Marion Ditch | Marion | 348 ft (106 m) | 44°45′45″N 122°53′51″W | Turner | 1123760 |
| Marquam Dry Lake Canal | Multnomah | 13 ft (4.0 m) | 45°39′54″N 122°48′14″W | Sauvie Island | 1123781 |
| Maxwell Canal | Umatilla | 525 ft (160 m) | 45°49′32″N 119°17′33″W | Hermiston | 1123855 |
| Maxwell Ditch | Baker | 3,501 ft (1,067 m) | 44°55′49″N 118°00′30″W | Rock Creek | 1123856 |
| Maxwell Ditch | Deschutes | 3,402 ft (1,037 m) | 44°14′39″N 121°30′51″W | Three Creek Butte | 1153109 |
| May Park Ditch | Union | 2,756 ft (840 m) | 45°20′25″N 118°03′47″W | La Grande | 1164112 |
| Mayfield Ditch | Klamath | 4,334 ft (1,321 m) | 43°32′09″N 121°38′49″W | Cryder Butte | 1153040 |
| McAlister Ditch | Union | 2,703 ft (824 m) | 45°19′09″N 117°59′04″W | Conley | 1164113 |
| McBride Ditch | Malheur | 2,162 ft (659 m) | 44°16′18″N 117°13′04″W | Olds Ferry | 1130921 |
| McCord Ditch | Baker | 3,425 ft (1,044 m) | 44°47′03″N 117°51′59″W | Baker City | 1164114 |
| McDonald Ditch | Jackson | 4,091 ft (1,247 m) | 42°06′39″N 122°48′44″W | Siskiyou Peak | 1145967 |
| McEwen Valley Ditch | Baker | 4,281 ft (1,305 m) | 44°41′17″N 118°09′07″W | Sumpter | 1145976 |
| McKenzie Ditch | Lane | 436 ft (133 m) | 44°04′24″N 123°02′34″W | Eugene East | 1639025 |
| McKenzie-Greeley Ditch | Malheur | 3,763 ft (1,147 m) | 43°20′17″N 117°05′09″W | Rockville | 1130438 |
| McMullen Ditch | Baker | 2,520 ft (770 m) | 44°51′05″N 117°03′54″W | Posy Valley | 1129555 |
| McPherson Ditch | Baker | 3,455 ft (1,053 m) | 44°29′45″N 117°49′41″W | Wendt Butte | 1124018 |
| Medford Aqueduct | Jackson | 2,513 ft (766 m) | 42°32′56″N 122°36′03″W | Butte Falls | 1146071 |
| Medford Irrigation District Canal | Jackson | 1,640 ft (500 m) | 42°26′59″N 122°43′45″W | Brownsboro | 1146072 |
| Melhase Ditch | Klamath | 4,176 ft (1,273 m) | 42°41′29″N 122°00′19″W | Mares Egg Spring | 1155324 |
| Middle Ditch | Malheur | 2,188 ft (667 m) | 44°09′50″N 116°57′09″W | Weiser South | 1124097 |
| Mill Creek Canal | Wasco | 2,680 ft (820 m) | 44°53′33″N 121°29′26″W | Hehe Butte | 1124167 |
| Mill Creek Lateral | Wasco | 2,838 ft (865 m) | 44°52′21″N 121°30′17″W | Sawmill Butte | 1124170 |
| Mill Ditch | Malheur | 2,234 ft (681 m) | 43°59′36″N 117°12′33″W | Vale East | 1124171 |
| Mill Ditch | Baker | 3,573 ft (1,089 m) | 44°29′22″N 117°51′48″W | Wendt Butte | 1124172 |
| Miller Ditch | Harney | 3,622 ft (1,104 m) | 43°51′02″N 118°27′32″W | Drewsey | 1124195 |
| Miller Ditch | Baker | 3,507 ft (1,069 m) | 44°55′33″N 118°00′37″W | Rock Creek | 1124196 |
| Milton Ditch | Umatilla | 1,083 ft (330 m) | 45°55′30″N 118°23′02″W | Milton-Freewater | 1124224 |
| Mining Channel | Baker | 2,776 ft (846 m) | 44°53′05″N 117°08′14″W | Jimtown | 1153705 |
| Mission Ditch | Marion | 184 ft (56 m) | 44°55′27″N 123°00′49″W | Salem West | 1163153 |
| Mitchell Butte Lateral | Malheur | 2,310 ft (700 m) | 43°49′18″N 117°05′26″W | Owyhee | 1124263 |
| Modoc Point Main Canal | Klamath | 4,163 ft (1,269 m) | 42°32′36″N 121°52′32″W | Chiloquin | 1146383 |
| Moody Ditch | Union | 3,425 ft (1,044 m) | 45°02′44″N 117°58′39″W | North Powder | 1116657 |
| Moonshine Ditch | Wallowa | 4,445 ft (1,355 m) | 45°19′40″N 117°14′12″W | Joseph | 1146430 |
| Moore Pratt Ditch | Baker | 3,323 ft (1,013 m) | 44°56′32″N 117°57′10″W | Haines | 1131473 |
| Morfitt Ditch | Malheur | 3,409 ft (1,039 m) | 44°23′00″N 117°43′34″W | Bridgeport | 1131887 |
| Moroney Canal | Tillamook | 20 ft (6.1 m) | 45°37′44″N 123°56′15″W | Nehalem | 1132399 |
| Moss Ditch | Lake | 4,764 ft (1,452 m) | 42°31′25″N 120°26′39″W | Tucker Hill | 1153754 |
| Mount Hood Canal Hood | Hood River | 1,535 ft (468 m) | 45°32′04″N 121°34′12″W | Parkdale | 1153230 |
| Murphy Ditch | Josephine | 1,033 ft (315 m) | 42°20′44″N 123°21′31″W | Murphy | 1157284 |
| Murray Ditch | Grant | 2,303 ft (702 m) | 44°29′45″N 119°34′49″W | Dayville | 1153771 |
| N Canal | Umatilla | 499 ft (152 m) | 45°51′25″N 119°16′36″W | Hermiston | 1124584 |
| Neal Creek Lateral Hood | Hood River | 961 ft (293 m) | 45°37′24″N 121°29′54″W | Ketchum Reservoir | 1146742 |
| Nelson Ditch | Baker | 3,986 ft (1,215 m) | 44°49′49″N 118°00′30″W | Elkhorn Peak | 1124651 |
| Nesley Ditch | Union | 2,785 ft (849 m) | 45°20′38″N 118°05′12″W | La Grande | 1164119 |
| Nevada Canal | Malheur | 2,208 ft (673 m) | 43°59′16″N 117°06′12″W | Cairo | 1124657 |
| New Berryman Ditch | Jackson | 1,276 ft (389 m) | 42°15′19″N 123°11′44″W | Applegate | 1135266 |
| New Home Ditch | Baker | 3,422 ft (1,043 m) | 44°47′20″N 117°49′00″W | Baker City | 1164120 |
| Newt Young Ditch | Baker | 2,352 ft (717 m) | 44°47′17″N 117°09′52″W | Richland | 1146816 |
| North Alkali Creek Siphon | Malheur | 2,493 ft (760 m) | 43°37′20″N 117°04′29″W | Graveyard Point | 1131221 |
| North Antelope Canal | Malheur | 4,262 ft (1,299 m) | 42°55′50″N 117°15′34″W | Danner | 1130455 |
| North Canal | Malheur | 2,533 ft (772 m) | 43°52′00″N 117°06′40″W | Owyhee | 1124724 |
| North Canal | Klamath | 4,101 ft (1,250 m) | 42°03′40″N 121°45′46″W | Worden | 1124725 |
| North Canal | Klamath | 4,190 ft (1,280 m) | 42°09′05″N 121°16′58″W | Lorella | 1124726 |
| North Canal | Lake | 4,856 ft (1,480 m) | 42°08′00″N 120°33′07″W | Drews Gap | 1146887 |
| North Canal Flume | Lake | 4,839 ft (1,475 m) | 42°11′25″N 120°30′52″W | Drews Gap | 1160988 |
| North Canal Lateral | Malheur | 2,503 ft (763 m) | 43°57′10″N 117°05′25″W | Cairo | 1124728 |
| North Dixie Ditch | Baker | 3,711 ft (1,131 m) | 44°28′25″N 117°29′59″W | Rye Valley | 1131861 |
| North Fork Ditch | Klamath | 4,485 ft (1,367 m) | 42°27′40″N 121°02′54″W | Bly | 1155309 |
| North Oakander Drain | Malheur | 2,264 ft (690 m) | 43°42′09″N 117°03′18″W | Adrian | 1124831 |
| North Side Canal | Malheur | 3,989 ft (1,216 m) | 42°56′44″N 117°30′17″W | Arock | 1124841 |
| North Unit Main Canal | Deschutes | 2,959 ft (902 m) | 44°18′19″N 121°06′39″W | O'Neil | 1147071 |
| Nouque Ditch | Malheur | 4,826 ft (1,471 m) | 42°00′55″N 117°37′39″W | Tenmile Ranch | 1130443 |
| Number One C-Drain | Klamath | 4,098 ft (1,249 m) | 42°11′00″N 121°44′44″W | Altamont | 1134733 |
| Number Six Canal | Lake | 4,846 ft (1,477 m) | 42°09′31″N 120°30′06″W | Drews Gap | 1146850 |
| Nye Ditch | Jackson | 2,441 ft (744 m) | 42°43′24″N 122°32′39″W | Cascade Gorge | 1116718 |
| Nyssa Drain | Malheur | 2,182 ft (665 m) | 43°53′46″N 117°00′32″W | Cairo | 1124872 |
| Nyssa-Arcadia Drain | Malheur | 2,182 ft (665 m) | 43°53′30″N 117°00′16″W | Cairo | 1166863 |
| O Canal | Umatilla | 472 ft (144 m) | 45°54′32″N 119°16′44″W | Umatilla | 1124873 |
| O Pipe | Umatilla | 466 ft (142 m) | 45°53′54″N 119°15′12″W | Umatilla | 1124874 |
| O V L Ditch | Lake | 4,308 ft (1,313 m) | 42°30′45″N 120°18′24″W | Coglan Buttes SE | 1131005 |
| OA Lateral | Umatilla | 463 ft (141 m) | 45°54′02″N 119°16′27″W | Umatilla | 1124875 |
| OB Lateral | Umatilla | 463 ft (141 m) | 45°54′35″N 119°17′19″W | Umatilla | 1124876 |
| Oak Grove Ditch | Hood River | 3,291 ft (1,003 m) | 45°37′06″N 121°42′07″W | Dee | 1147115 |
| Oakander Drain | Malheur | 2,244 ft (684 m) | 43°42′40″N 117°03′51″W | Adrian | 1124920 |
| Ochoco Distribution Canal | Crook | 2,982 ft (909 m) | 44°20′59″N 120°52′09″W | Prineville | 1153122 |
| Ochoco Main Canal | Crook | 3,051 ft (930 m) | 44°19′30″N 120°47′04″W | Prineville | 1147144 |
| Oliver Drain | Malheur | 4,318 ft (1,316 m) | 43°03′54″N 117°18′11″W | Cow Lakes | 1124984 |
| Ontario Nyssa Canal | Malheur | 2,297 ft (700 m) | 43°53′48″N 117°02′15″W | Cairo | 1125004 |
| Orchard Ridge Ditch | Wasco | 2,257 ft (688 m) | 45°23′24″N 121°17′24″W | Wolf Run | 1157088 |
| Ordell Ditch | Union | 2,713 ft (827 m) | 45°23′04″N 118°02′03″W | Summerville | 1147257 |
| Oswego Canal | Clackamas | 105 ft (32 m) | 45°23′37″N 122°43′10″W | Lake Oswego | 1125055 |
| Outside Canal | Lake | 4,314 ft (1,315 m) | 42°40′13″N 120°25′45″W | Coglan Buttes | 1147297 |
| Owens Ditch | Grant | 4,649 ft (1,417 m) | 44°03′15″N 118°58′34″W | Silvies | 1152973 |
| Owyhee Canal | Malheur | 2,372 ft (723 m) | 44°01′04″N 117°12′22″W | Henry Gulch | 1166691 |
| Owyhee Ditch | Malheur | 2,234 ft (681 m) | 43°47′24″N 117°04′59″W | Owyhee | 1125095 |
| Owyhee Siphon | Malheur | 2,333 ft (711 m) | 43°44′10″N 117°10′39″W | Owyhee Dam | 1131225 |
| P P & L Canal | Jackson | 2,628 ft (801 m) | 42°45′04″N 122°30′26″W | Whetstone Point | 1159373 |
| P1 Canal | Siskiyou (CA) | 4,091 ft (1,247 m) | 41°59′06″N 121°38′35″W | Lower Klamath Lake | 267150 |
| Packwood Ditch | Baker | 3,684 ft (1,123 m) | 44°29′40″N 118°05′44″W | Hereford | 1125120 |
| Palmer Ditch | Crook | 3,940 ft (1,200 m) | 44°08′15″N 119°44′44″W | Powell Mountain | 1157567 |
| Panama Ditch | Grant | 2,877 ft (877 m) | 44°25′12″N 119°07′23″W | Mount Vernon | 1152797 |
| Parker Ditch | Malheur | 4,902 ft (1,494 m) | 42°38′48″N 117°03′58″W | Juniper Point | 1131219 |
| Patillo Ditches | Jackson | 1,588 ft (484 m) | 42°36′19″N 122°58′54″W | Boswell Mountain | 1135443 |
| Payton Ditch | Baker | 3,346 ft (1,020 m) | 44°52′08″N 117°54′04″W | Wingville | 1125252 |
| Pearson Ditch | Baker | 3,340 ft (1,020 m) | 45°00′12″N 117°57′54″W | North Powder | 1131532 |
| Pelican Cut Canal | Klamath | 4,147 ft (1,264 m) | 42°27′24″N 122°05′09″W | Pelican Bay | 1135152 |
| Peninsula Drainage Canal | Multnomah | 13 ft (4.0 m) | 45°35′37″N 122°38′25″W | Portland | 1125284 |
| Penstock Olsen Ditch | Baker | 3,996 ft (1,218 m) | 44°55′15″N 118°03′04″W | Rock Creek | 1125294 |
| Peoples Irrigation Company Ditch | Crook | 2,838 ft (865 m) | 44°19′39″N 120°54′37″W | Houston Lake | 1129578 |
| Perkins Ditch | Baker | 2,707 ft (825 m) | 44°49′47″N 117°31′00″W | Keating | 1158416 |
| Perrin Lateral | Marion | 328 ft (100 m) | 44°48′35″N 122°55′24″W | Turner | 1125308 |
| Peters Ditch | Linn | 351 ft (107 m) | 44°41′48″N 122°48′56″W | Scio | 1125317 |
| Pettegrew Lateral | Jackson | 1,526 ft (465 m) | 42°31′04″N 122°47′14″W | Shady Cove | 1125336 |
| Philling-McFadden Ditch | Wheeler | 3,743 ft (1,141 m) | 44°27′30″N 119°48′38″W | Antone | 1157824 |
| Phillips Ditch | Baker | 5,072 ft (1,546 m) | 45°02′00″N 117°28′05″W | Bennet Peak | 1125346 |
| Phillips Ditch | Baker | 3,684 ft (1,123 m) | 44°49′50″N 117°58′44″W | Wingville | 1132506 |
| Phillips Ditch | Baker | 3,140 ft (960 m) | 44°53′12″N 117°28′31″W | Balm Creek Reservoir | 1147638 |
| Phoenix Canal | Jackson | 1,512 ft (461 m) | 42°18′04″N 122°54′16″W | Medford West | 1125349 |
| Pilot Butte Canal | Deschutes | 3,127 ft (953 m) | 44°12′32″N 121°14′02″W | Forked Horn Butte | 1147673 |
| Pilot Butte North Canal | Crook | 2,953 ft (900 m) | 44°23′06″N 121°04′41″W | Gray Butte | 1147675 |
| Pilot Butte South Canal | Crook | 2,894 ft (882 m) | 44°23′01″N 121°03′15″W | Gray Butte | 1147676 |
| Placer Ditch | Grant | 5,938 ft (1,810 m) | 44°43′08″N 118°28′32″W | Greenhorn | 1147787 |
| Plainview Ditch | Deschutes | 3,274 ft (998 m) | 44°13′20″N 121°28′29″W | Tumalo Dam | 1147791 |
| Pleasant View Canal | Umatilla | 971 ft (296 m) | 45°56′38″N 118°24′27″W | Milton-Freewater | 1125487 |
| Plevna Ditch | Klamath | 4,121 ft (1,256 m) | 42°10′15″N 121°50′29″W | Klamath Falls | 1162442 |
| Pole Creek Ditch | Deschutes | 3,898 ft (1,188 m) | 44°14′15″N 121°36′18″W | Three Creek Butte | 1147849 |
| Poley-Allen Ditch | Wallowa | 3,425 ft (1,044 m) | 45°29′03″N 117°26′19″W | Lostine | 1147860 |
| Posy Valley Ditch | Baker | 3,107 ft (947 m) | 44°52′09″N 117°08′19″W | Richland | 1147926 |
| Potter Ditch | Wheeler | 1,785 ft (544 m) | 44°49′20″N 119°44′34″W | Kimberly | 1116527 |
| Poujade Ditch | Harney | 4,144 ft (1,263 m) | 43°37′28″N 118°43′24″W | Carson Point | 1166779 |
| Power Canal | Hood River | 203 ft (62 m) | 45°41′19″N 121°30′40″W | Hood River | 1129666 |
| Powers Ditch | Baker | 3,681 ft (1,122 m) | 44°59′51″N 118°04′38″W | Rock Creek | 1125644 |
| Prescott Ditch | Union | 2,825 ft (861 m) | 45°11′59″N 117°51′39″W | Union | 1129460 |
| Priday Ditch | Lake | 5,243 ft (1,598 m) | 42°26′15″N 120°05′34″W | Drake Peak NE | 1131106 |
| Pump Ditch | Malheur | 2,346 ft (715 m) | 43°58′52″N 117°16′11″W | Vale West | 1125701 |
| Purvis Drain | Malheur | 2,313 ft (705 m) | 43°55′50″N 117°22′04″W | Vale West | 1129752 |
| Q Street Canal | Lane | 443 ft (135 m) | 44°03′39″N 123°02′54″W | Eugene East | 1129647 |
| R Canal | Umatilla | 541 ft (165 m) | 45°52′34″N 119°18′43″W | Umatilla | 1125758 |
| R-3 Pipe | Umatilla | 541 ft (165 m) | 45°52′27″N 119°16′53″W | Hermiston | 1125760 |
| Red Ditch | Jackson | 1,093 ft (333 m) | 42°31′05″N 123°10′16″W | Wimer | 1125876 |
| Red Drain | Malheur | 2,254 ft (687 m) | 43°42′18″N 117°04′27″W | Adrian | 1125877 |
| Red House Ditch | Lake | 4,334 ft (1,321 m) | 42°42′55″N 120°30′39″W | Paisley | 1148310 |
| Reed Ditch | Baker | 3,556 ft (1,084 m) | 44°30′11″N 117°56′42″W | Brannan Gulch | 1125922 |
| Reed Ditch | Deschutes | 3,261 ft (994 m) | 44°15′59″N 121°32′04″W | Sisters | 1153106 |
| Reeds Ditch | Baker | 3,550 ft (1,080 m) | 44°30′00″N 117°56′14″W | Devils Heel | 1131953 |
| Rehart-Salt Creek Ditch | Lake | 4,777 ft (1,456 m) | 42°18′50″N 120°17′59″W | Crooked Creek Valley | 1130997 |
| Rineman Ditch | Harney | 4,104 ft (1,251 m) | 43°15′33″N 118°53′26″W | The Narrows | 1159208 |
| Ringsmeyer Ditch | Grant | 2,303 ft (702 m) | 44°29′02″N 119°33′54″W | Dayville | 1153769 |
| Riverside Canal | Malheur | 2,260 ft (690 m) | 43°42′10″N 117°03′39″W | Adrian | 1126064 |
| Robbins Ditch | Harney | 3,757 ft (1,145 m) | 43°52′43″N 118°35′55″W | Moffit Table | 1148534 |
| Robbins Drain | Malheur | 2,313 ft (705 m) | 43°55′25″N 117°22′04″W | Vale West | 1129751 |
| Robertson Ditch | Union | 3,281 ft (1,000 m) | 45°00′27″N 117°38′54″W | Medical Springs | 1131546 |
| Rock Creek Ditch | Wasco | 1,932 ft (589 m) | 45°11′49″N 121°18′19″W | Wamic | 1153170 |
| Rock Spring Siphon | Malheur | 2,493 ft (760 m) | 43°45′48″N 117°11′37″W | Mitchell Butte | 1126218 |
| Russell Drain | Malheur | 2,277 ft (694 m) | 43°55′10″N 117°17′04″W | Vale West | 1129750 |
| Rutherford Ditch | Malheur | 3,619 ft (1,103 m) | 44°21′04″N 117°52′35″W | Ironside | 1161052 |
| Ryegrass Ditch | Crook | 2,867 ft (874 m) | 44°19′13″N 120°51′46″W | Prineville | 1148882 |
| S Canal | Umatilla | 463 ft (141 m) | 45°53′33″N 119°15′52″W | Umatilla | 1126396 |
| Saint Clair Canal | Harney | 4,108 ft (1,252 m) | 43°16′46″N 119°14′04″W | Northwest Harney Lake | 1133760 |
| Salem Ditch | Marion | 433 ft (132 m) | 44°48′22″N 122°49′14″W | Stayton | 1126505 |
| Sand Creek Canal | Klamath | 4,636 ft (1,413 m) | 42°52′24″N 121°53′29″W | Sun Pass | 1154994 |
| Scott Ditch | Malheur | 3,583 ft (1,092 m) | 42°47′39″N 117°44′53″W | Rome | 1126687 |
| Scott Ditch | Wasco | 3,383 ft (1,031 m) | 45°07′44″N 117°57′46″W | Craig Mountain | 1130904 |
| Scotts Ditch | Malheur | 4,564 ft (1,391 m) | 42°41′25″N 117°19′53″W | Skull Creek | 1157305 |
| Seely Ditch | Clackamas | 144 ft (44 m) | 45°18′59″N 122°47′04″W | Sherwood | 1162796 |
| Segundo Ditch | Malheur | 4,951 ft (1,509 m) | 42°12′00″N 117°53′51″W | Oregon Canyon Ranch | 1133156 |
| Sevenmile Canal | Klamath | 4,144 ft (1,263 m) | 42°34′59″N 121°58′04″W | Agency Lake | 1154302 |
| Sevenmile Ditch | Klamath | 4,183 ft (1,275 m) | 42°41′55″N 122°03′34″W | Mares Egg Spring | 1134810 |
| Sharp Ditch | Malheur | 4,321 ft (1,317 m) | 42°59′20″N 117°09′51″W | Antelope Reservoir | 1130453 |
| Shaw Brant Ditch | Union | 3,514 ft (1,071 m) | 45°04′32″N 117°58′31″W | North Powder | 1149295 |
| Shaw Ditch | Union | 3,412 ft (1,040 m) | 45°00′52″N 117°58′23″W | North Powder | 1149298 |
| Shaw Stewart Ditch | Baker | 3,592 ft (1,095 m) | 44°41′48″N 117°51′23″W | Bowen Valley | 1126807 |
| Sheep Creek Siphon | Malheur | 2,516 ft (767 m) | 43°54′29″N 117°05′01″W | Cairo | 1126821 |
| Sheep L Ditch | Harney | 4,436 ft (1,352 m) | 43°32′55″N 119°45′09″W | Potato Hills | 1129714 |
| Sheep Ridge Ditch | Wallowa | 3,609 ft (1,100 m) | 45°28′16″N 117°24′39″W | Lostine | 1149335 |
| Shelton Ditch | Marion | 184 ft (56 m) | 44°55′33″N 123°00′34″W | Salem West | 1163266 |
| Shoemaker Ditch | Wheeler | 3,514 ft (1,071 m) | 44°31′34″N 120°08′39″W | Mitchell | 1158711 |
| Short Low Ditch | Umatilla | 584 ft (178 m) | 46°00′19″N 118°34′24″W | Lowden | 1157399 |
| Sidney Ditch | Marion | 279 ft (85 m) | 44°44′02″N 122°57′53″W | Crabtree | 1163271 |
| Sidney Power Ditch | Marion | 200 ft (61 m) | 44°46′57″N 123°04′16″W | Sidney | 1126949 |
| Siegle Ditch | Baker | 2,320 ft (710 m) | 44°43′50″N 117°07′54″W | Daly Creek | 1129562 |
| Silver Grange Ditch | Wallowa | 7,447 ft (2,270 m) | 45°22′01″N 117°21′57″W | Chief Joseph Mountain | 1149497 |
| Silver L Canal | Lake | 4,439 ft (1,353 m) | 43°06′20″N 121°03′44″W | Hager Mountain | 1153864 |
| Silver Lake Ditch | Wallowa | 4,255 ft (1,297 m) | 45°21′16″N 117°08′25″W | Joseph | 1149502 |
| Singer Drain | Malheur | 2,201 ft (671 m) | 43°42′43″N 117°04′36″W | Adrian | 1126999 |
| Sitz Ditch | Harney | 3,655 ft (1,114 m) | 43°50′10″N 118°29′04″W | Drewsey | 1160500 |
| Skipanon Waterway | Clatsop | 7 ft (2.1 m) | 46°10′35″N 123°54′38″W | Warrenton | 1127030 |
| Skunk Farm Canal | Harney | 4,140 ft (1,260 m) | 43°05′25″N 118°50′11″W | Diamond Swamp | 1127046 |
| Slide Ditch | Malheur | 2,100 ft (640 m) | 44°14′10″N 117°00′44″W | Moores Hollow | 1131828 |
| Slusher Canal | Umatilla | 738 ft (225 m) | 45°40′54″N 119°05′39″W | Nolin | 1129670 |
| Smith Ditch | Morrow | 4,859 ft (1,481 m) | 45°09′55″N 119°19′22″W | Arbuckle Mountain | 1149752 |
| Smith Ditch | Deschutes | 3,192 ft (973 m) | 44°17′24″N 121°33′04″W | Sisters | 1153105 |
| Smith Ditch | Crook | 3,363 ft (1,025 m) | 44°18′24″N 120°36′24″W | Cadle Butte | 1153127 |
| Smith Ditch | Baker | 3,615 ft (1,102 m) | 44°44′10″N 117°49′45″W | Bowen Valley | 1164135 |
| Smith McPhee Ditch | Baker | 3,330 ft (1,010 m) | 44°59′06″N 117°55′59″W | Haines | 1127128 |
| Snively Siphon | Malheur | 2,339 ft (713 m) | 43°43′00″N 117°10′59″W | Owyhee Dam | 1131224 |
| Snow Creek Ditch | Deschutes | 3,898 ft (1,188 m) | 44°08′34″N 121°29′39″W | Tumalo Dam | 1149814 |
| Sodom Ditch | Linn | 269 ft (82 m) | 44°26′52″N 123°03′22″W | Halsey | 1127194 |
| South Alkali Drain | Malheur | 2,274 ft (693 m) | 43°43′03″N 117°02′25″W | Adrian | 1127227 |
| South Antelope Canal | Malheur | 4,262 ft (1,299 m) | 42°55′04″N 117°17′08″W | Danner | 1130454 |
| South Canal | Owyhee (ID) | 2,493 ft (760 m) | 43°31′42″N 116°57′47″W | Homedale | 375136 |
| South Canal | Malheur | 2,543 ft (775 m) | 43°39′47″N 117°05′51″W | Adrian | 1127236 |
| South Canal | Lake | 4,783 ft (1,458 m) | 42°02′24″N 120°33′00″W | Fitzwater Point | 1149908 |
| South Catherine Ditch | Union | 6,329 ft (1,929 m) | 45°05′44″N 117°30′47″W | Flagstaff Butte | 1127237 |
| South Diamond Canal | Harney | 4,144 ft (1,263 m) | 43°01′38″N 118°47′28″W | Diamond Swamp | 1127248 |
| South Ditch | Umatilla | 548 ft (167 m) | 45°59′50″N 118°38′38″W | Smeltz | 1158495 |
| South Dixie Ditch | Baker | 3,438 ft (1,048 m) | 44°26′35″N 117°28′34″W | Rye Valley | 1131840 |
| South Fork Canal | Jackson | 4,665 ft (1,422 m) | 42°18′29″N 122°22′14″W | Brown Mountain | 1116638 |
| South Highline Canal | Josephine | 1,043 ft (318 m) | 42°24′44″N 123°19′04″W | Grants Pass | 1135235 |
| South Main Canal | Josephine | 961 ft (293 m) | 42°25′04″N 123°19′04″W | Grants Pass | 1135236 |
| South Side Canal | Malheur | 4,029 ft (1,228 m) | 42°52′44″N 117°28′11″W | Threemile Hill | 1150080 |
| Southworth Ditch | Grant | 4,692 ft (1,430 m) | 44°09′20″N 118°57′19″W | Seneca | 1152972 |
| Spence Ditch | Umatilla | 1,260 ft (380 m) | 45°54′09″N 118°20′34″W | Bowlus Hill | 1638733 |
| Spring Creek Ditch | Baker | 3,150 ft (960 m) | 44°50′25″N 117°12′39″W | Richland | 1161770 |
| Springer Ditch | Wasco | 4,485 ft (1,367 m) | 45°21′04″N 121°27′26″W | Flag Point | 1158502 |
| Stacey Ditch | Malheur | 2,336 ft (712 m) | 43°56′50″N 117°24′59″W | Vines Hill | 1129746 |
| Stallard Ditch | Harney | 3,570 ft (1,090 m) | 43°50′35″N 118°18′49″W | Drinkwater Pass | 1160504 |
| Stanfield Branch Furnish Ditch | Umatilla | 653 ft (199 m) | 45°48′08″N 119°10′56″W | Stanfield | 1127526 |
| Stanfield Drain | Umatilla | 623 ft (190 m) | 45°47′19″N 119°10′49″W | Stanfield | 1129797 |
| Star Creek Ditch | Malheur | 4,905 ft (1,495 m) | 43°25′45″N 117°56′51″W | Star Creek Reservoir | 1164027 |
| State Ditch | Union | 2,684 ft (818 m) | 45°23′25″N 117°55′51″W | Imbler | 1150363 |
| Stearns Ditch | Crook | 2,907 ft (886 m) | 44°13′19″N 120°52′29″W | Stearns Butte | 1130932 |
| Sterling Ditch | Jackson | 2,477 ft (755 m) | 42°11′53″N 122°56′49″W | Sterling Creek | 1150410 |
| Steward Ditch | Baker | 3,107 ft (947 m) | 44°52′20″N 117°29′04″W | Glasgow Butte | 1129433 |
| Steward Ditch | Grant | 2,480 ft (760 m) | 44°27′35″N 119°25′34″W | Aldrich Mountain North | 1153956 |
| Stewart Carter Ditch | Malheur | 2,178 ft (664 m) | 44°01′03″N 116°59′30″W | Payette | 1127597 |
| Stewart Ditch | Grant | 2,480 ft (760 m) | 44°27′35″N 119°25′34″W | Aldrich Mountain North | 1161631 |
| Stock Ditch | Lake | 4,308 ft (1,313 m) | 42°39′35″N 120°28′37″W | Coglan Buttes | 1127618 |
| Stockwater Ditch | Harney | 4,550 ft (1,390 m) | 42°24′45″N 118°55′14″W | Garrison Lake | 1129759 |
| Stradley Drain | Malheur | 2,260 ft (690 m) | 43°41′48″N 117°03′52″W | Adrian | 1127646 |
| Strode Ditch | Malheur | 3,862 ft (1,177 m) | 43°18′05″N 117°04′02″W | Rockville | 1130436 |
| Stubblefield Canal | Harney | 4,117 ft (1,255 m) | 43°11′28″N 118°56′36″W | Coyote Buttes | 1127668 |
| Succor Creek Siphon | Malheur | 2,523 ft (769 m) | 43°35′10″N 117°04′24″W | Graveyard Point | 1131220 |
| Summer Lake I D Canal | Lake | 4,275 ft (1,303 m) | 42°56′40″N 120°47′49″W | Summer Lake | 1153851 |
| Sunnyslope Ditch | Union | 3,317 ft (1,011 m) | 45°03′18″N 117°55′26″W | North Powder | 1127736 |
| Swalley Canal | Deschutes | 3,438 ft (1,048 m) | 44°06′46″N 121°17′18″W | Bend | 1150727 |
| Swayne Ditch | Jackson | 1,591 ft (485 m) | 42°08′49″N 123°03′24″W | Ruch | 1155054 |
| Swinger Ditch | Baker | 3,405 ft (1,038 m) | 44°54′50″N 117°52′20″W | Magpie Peak | 1150788 |
| T Canal | Klamath | 4,137 ft (1,261 m) | 42°02′35″N 121°23′57″W | Malin | 1127851 |
| T Canal | Umatilla | 472 ft (144 m) | 45°53′34″N 119°14′38″W | Hat Rock | 1127852 |
| Table Rock Canal | Jackson | 1,217 ft (371 m) | 42°27′19″N 122°54′39″W | Sams Valley | 1134762 |
| Talent Lateral | Jackson | 1,719 ft (524 m) | 42°16′13″N 122°51′58″W | Medford East | 1161540 |
| Talent Middle Canal | Jackson | 1,696 ft (517 m) | 42°15′29″N 122°50′01″W | Medford East | 1134787 |
| Taylor Ditch | Baker | 4,281 ft (1,305 m) | 44°40′25″N 117°24′59″W | Lawrence Creek | 1129440 |
| Taylor Ditch | Umatilla | 682 ft (208 m) | 45°42′49″N 119°10′34″W | Echo | 1129888 |
| The Drain | Josephine | 876 ft (267 m) | 42°25′47″N 123°25′34″W | Wilderville | 1135455 |
| The Mill Ditch | Grant | 3,609 ft (1,100 m) | 44°26′54″N 118°42′20″W | Prairie City | 1151026 |
| Thompson Ditch | Baker | 4,003 ft (1,220 m) | 44°31′42″N 118°13′41″W | Unity Reservoir | 1153984 |
| Three Sisters Canal | Deschutes | 2,818 ft (859 m) | 44°20′18″N 121°23′27″W | Henkle Butte | 1150262 |
| Threemile Ditch | Wasco | 2,090 ft (640 m) | 45°14′11″N 121°19′49″W | Wamic | 1151192 |
| Throop Ditch | Grant | 2,342 ft (714 m) | 44°28′42″N 119°31′59″W | Dayville | 1153768 |
| Tiger Ditch | Baker | 3,996 ft (1,218 m) | 44°28′30″N 118°13′59″W | Unity | 1153978 |
| Tobin Ditch | Baker | 2,612 ft (796 m) | 44°49′11″N 117°12′27″W | Richland | 1151291 |
| Tokay Canal | Josephine | 1,109 ft (338 m) | 42°26′34″N 123°18′04″W | Grants Pass | 1135239 |
| Townsite Ditch | Malheur | 3,002 ft (915 m) | 43°44′43″N 118°05′38″W | Juntura | 1128180 |
| Travillion-Koester ditch | Baker | 3,255 ft (992 m) | 45°00′00″N 117°52′51″W | North Powder | 1131533 |
| Trout Creek | Union | 6,237 ft (1,901 m) | 45°04′52″N 117°30′34″W | Flagstaff Butte | 1128236 |
| Trowbridge Ditch | Grant | 3,120 ft (950 m) | 44°25′28″N 118°56′54″W | John Day | 1638244 |
| Tudor Ditch | Malheur | 3,924 ft (1,196 m) | 42°41′25″N 117°54′34″W | Flat Top Mountain | 1130448 |
| Tumalo Canal | Deschutes | 3,327 ft (1,014 m) | 44°11′10″N 121°22′38″W | Tumalo Dam | 1151489 |
| Tumalo Feed Canal | Deschutes | 3,537 ft (1,078 m) | 44°07′06″N 121°22′59″W | Shevlin Park | 1151494 |
| Tunnel Millrace | Lane | 561 ft (171 m) | 43°53′21″N 123°00′43″W | Creswell | 1128299 |
| U S B Line Canal | Umatilla | 676 ft (206 m) | 45°47′59″N 119°14′49″W | Stanfield | 1129811 |
| Umatilla Drain | Umatilla | 440 ft (130 m) | 45°53′59″N 119°18′02″W | Umatilla | 1128401 |
| Uncle Tom Slough | Columbia | 13 ft (4.0 m) | 46°07′19″N 123°15′54″W | Marshland | 1132301 |
| Upper Ditch | Malheur | 2,205 ft (672 m) | 44°10′39″N 116°59′03″W | Weiser South | 1128445 |
| Upper Fisher Long Ditch | Baker | 3,691 ft (1,125 m) | 44°55′19″N 118°02′04″W | Rock Creek | 1128450 |
| Upper Hanley Canal | Harney | 4,140 ft (1,260 m) | 43°34′03″N 118°58′05″W | Poison Creek Slough | 1128454 |
| Upper Pump Canal | Malheur | 2,264 ft (690 m) | 43°58′30″N 117°08′54″W | Vale East | 1164024 |
| Upper West Lateral | Jackson | 2,172 ft (662 m) | 42°12′52″N 122°48′19″W | Talent | 1151710 |
| Upton Lateral | Jackson | 1,286 ft (392 m) | 42°23′29″N 122°53′22″W | Sams Valley | 1134759 |
| Urlezaga Ditch | Malheur | 4,324 ft (1,318 m) | 42°59′22″N 117°09′04″W | Antelope Reservoir | 1130452 |
| V Canal | Klamath | 4,170 ft (1,270 m) | 42°03′39″N 121°25′24″W | Malin | 1128490 |
| Vale Oregon Canal | Malheur | 2,569 ft (783 m) | 43°59′41″N 117°19′42″W | Vale West | 1639340 |
| Valley View Drain | Malheur | 2,182 ft (665 m) | 43°58′20″N 116°59′44″W | Nyssa | 1163881 |
| Van Brimmer Canal | Klamath | 4,081 ft (1,244 m) | 42°00′06″N 121°36′05″W | Merrill | 1128501 |
| Vines Ditch | Malheur | 2,365 ft (721 m) | 43°56′19″N 117°26′32″W | Vines Hill | 1128543 |
| Visher Feed Canal | Malheur | 3,612 ft (1,101 m) | 43°26′00″N 118°11′24″W | McEwen Butte | 1131823 |
| Volmer Ditch | Hood River | 2,723 ft (830 m) | 45°28′27″N 121°37′14″W | Dog River | 1154331 |
| Vroman Ditch | Jackson | 1,148 ft (350 m) | 42°31′49″N 123°09′24″W | Wimer | 1135415 |
| W A Lateral | Klamath | 4,278 ft (1,304 m) | 43°36′47″N 121°33′49″W | Masten Butte | 1153037 |
| W R Lateral | Deschutes | 4,272 ft (1,302 m) | 43°36′49″N 121°32′54″W | Masten Butte | 1153036 |
| Wade Ditch | Wallowa | 3,438 ft (1,048 m) | 45°28′27″N 117°22′55″W | Lostine | 1151795 |
| Walker Basin Canal | Klamath | 4,288 ft (1,307 m) | 43°35′29″N 121°34′09″W | Masten Butte | 1153038 |
| Walker Ditch | Marion | 135 ft (41 m) | 45°04′02″N 122°49′34″W | Silverton | 1161027 |
| Walker Drain | Malheur | 2,244 ft (684 m) | 43°40′58″N 117°04′00″W | Adrian | 1128592 |
| Wallowa Valley Improvement Canal | Wallowa | 4,934 ft (1,504 m) | 45°18′10″N 117°06′32″W | Kinney Lake | 1151866 |
| Walterville Canal | Lane | 551 ft (168 m) | 44°04′04″N 122°50′28″W | Walterville | 1128621 |
| Wapinitia Canal | Wasco | 1,923 ft (586 m) | 45°09′14″N 121°13′09″W | Tygh Valley | 1153136 |
| Ward Drain | Malheur | 2,182 ft (665 m) | 43°52′05″N 117°00′19″W | Owyhee | 1166866 |
| Warm Springs Canal | Harney | 4,183 ft (1,275 m) | 42°50′39″N 118°54′54″W | Frenchglen | 1128651 |
| Warm Springs Pump Canal | Malheur | 2,313 ft (705 m) | 44°02′08″N 117°16′21″W | Willowcreek | 1166718 |
| Waterbury Ditch | Baker | 2,444 ft (745 m) | 44°47′55″N 117°12′00″W | Richland | 1151942 |
| Watts and Topping Ditch | Josephine | 1,191 ft (363 m) | 42°17′24″N 123°14′36″W | Applegate | 1135261 |
| Weatherspoon Ditch | Baker | 4,764 ft (1,452 m) | 45°40′00″N 117°16′44″W | Sled Springs | 1129537 |
| Welch Drain | Malheur | 2,211 ft (674 m) | 43°41′29″N 117°03′01″W | Adrian | 1128781 |
| Wendt Ditch | Baker | 3,402 ft (1,037 m) | 44°29′12″N 117°43′56″W | Bridgeport | 1128802 |
| West Canal | Klamath | 4,150 ft (1,260 m) | 42°04′48″N 121°15′23″W | Bryant Mountain | 1128815 |
| West Canal | Klamath | 4,098 ft (1,249 m) | 42°01′25″N 121°51′24″W | Worden | 1162439 |
| West Extension Irrigation Canal | Morrow | 397 ft (121 m) | 45°54′04″N 119°25′55″W | Irrigon | 1128829 |
| West Lateral | Jackson | 1,985 ft (605 m) | 42°14′27″N 122°49′18″W | Talent | 1152132 |
| West Side Ditch | Grant | 4,554 ft (1,388 m) | 43°58′10″N 118°57′19″W | Trout Creek | 1154246 |
| Westland A Canal | Umatilla | 561 ft (171 m) | 45°51′24″N 119°21′19″W | Hermiston | 1129833 |
| Westland F Canal | Umatilla | 535 ft (163 m) | 45°50′19″N 119°21′29″W | Hermiston | 1129832 |
| Westside Ditch | Wallowa | 3,625 ft (1,105 m) | 45°28′50″N 117°26′54″W | Lostine | 1152160 |
| Wham Whited Ditch | Baker | 3,911 ft (1,192 m) | 44°29′30″N 118°12′44″W | Unity | 1153979 |
| Whitby Ditch | Benton | 249 ft (76 m) | 44°28′16″N 123°18′23″W | Greenberry | 1136901 |
| White Ditch | Umatilla | 640 ft (200 m) | 45°58′13″N 118°34′01″W | Waterman | 1128977 |
| Whiteline Ditch | Klamath | 4,426 ft (1,349 m) | 42°19′55″N 121°44′19″W | Whiteline Reservoir | 1132655 |
| Wilcox Ditch | Lake | 4,951 ft (1,509 m) | 42°15′25″N 120°21′04″W | Crooked Creek Valley | 1130999 |
| Wilcox Ditch | Baker | 3,976 ft (1,212 m) | 44°54′21″N 118°02′48″W | Rock Creek | 1158553 |
| Willamette Falls Locks and Canal | Clackamas | 10 ft (3.0 m) | 45°21′18″N 122°37′3.47″W | ||
| Willams Ditch | Harney | 3,530 ft (1,080 m) | 43°48′10″N 118°19′54″W | Drinkwater Pass | 1132009 |
| Williams Ditch | Baker | 3,976 ft (1,212 m) | 44°50′55″N 118°00′34″W | Elkhorn Peak | 1129117 |
| Williams Ditch | Baker | 3,504 ft (1,068 m) | 44°57′10″N 118°01′07″W | Rock Creek | 1129118 |
| Williams Ditch | Baker | 4,491 ft (1,369 m) | 44°22′49″N 118°09′54″W | Unity | 1152389 |
| Williams Drain | Klamath | 4,331 ft (1,320 m) | 42°25′05″N 121°21′24″W | Beatty | 1155315 |
| Williams and Whalen Ditch | Jackson | 1,207 ft (368 m) | 42°32′59″N 123°07′33″W | McConville Peak | 1135409 |
| Williamson River Ditch | Klamath | 4,554 ft (1,388 m) | 42°59′24″N 121°31′29″W | Wildhorse Ridge | 1155412 |
| Willow Valley Canal | Klamath | 4,423 ft (1,348 m) | 42°00′50″N 121°08′34″W | Langell Valley | 1133113 |
| Wilson Ditch | Lake | 4,885 ft (1,489 m) | 42°19′20″N 120°22′26″W | Crooked Creek Valley | 1130995 |
| Wocus Drainage Canal | Klamath | 4,131 ft (1,259 m) | 42°14′54″N 121°54′19″W | Keno | 1161598 |
| Wolf Run Ditch | Wasco | 2,913 ft (888 m) | 45°24′59″N 121°20′47″W | Wolf Run | 1152602 |
| Wood River Canal | Klamath | 4,144 ft (1,263 m) | 42°37′39″N 121°58′28″W | Fort Klamath | 1134239 |
| Wrenn Dobbin Ditch | Wallowa | 4,117 ft (1,255 m) | 45°22′02″N 117°12′25″W | Joseph | 1152658 |
| Wright Ditch | Union | 3,330 ft (1,010 m) | 45°00′46″N 117°39′06″W | Medical Springs | 1131547 |
| Y J Canal | Klamath | 4,531 ft (1,381 m) | 42°57′29″N 121°35′54″W | Wildhorse Ridge | 1154999 |
| Yamsay Land and Cattle Company Ditch | Klamath | 4,531 ft (1,381 m) | 42°51′24″N 121°48′34″W | Fuego | 1154991 |
| Yankee Creek Siphon | Jackson | 1,542 ft (470 m) | 42°25′14″N 122°44′16″W | Brownsboro | 1129353 |
| Yonna Ditch | Klamath | 4,153 ft (1,266 m) | 42°13′29″N 121°26′52″W | Bonanza | 1152741 |
| Young Ditch | Malheur | 3,734 ft (1,138 m) | 44°20′10″N 117°56′34″W | Ironside | 1131942 |
| Z Canal | Umatilla | 535 ft (163 m) | 45°52′10″N 119°16′58″W | Hermiston | 1129405 |
| ZX Brattain Ditch | Lake | 4,314 ft (1,315 m) | 42°38′43″N 120°30′39″W | Paisley | 1152790 |
| Zell Ditch | Umatilla | 1,161 ft (354 m) | 45°54′41″N 118°22′01″W | Bowlus Hill | 1638734 |
| Zimmerman Ditch | Malheur | 3,947 ft (1,203 m) | 42°58′05″N 117°39′34″W | Owyhee Butte | 1131801 |
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