List of canals in Oregon (M-Z)

List of canals in Oregon and List of canals in Oregon (M-Z) 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).

name	county	elevation	coordinate	USGS Map	GNIS url
M Canal	Umatilla	&10000000000000486000000486 ft (148 m)	45°52′39″N 119°15′42″W	Umatilla	[1]
Main Canal	Marion	&10000000000000371000000371 ft (113 m)	44°47′37″N 122°52′55″W	Turner	[2]
Malheur Siphon	Malheur	&100000000000022570000002,257 ft (688 m)	43°58′52″N 117°03′27″W	Cairo	[3]
Mallett Drain	Malheur	&100000000000021950000002,195 ft (669 m)	43°59′40″N 117°06′58″W	Cairo	[4]
Mansfield Ditch	Baker	&100000000000035040000003,504 ft (1,068 m)	44°56′56″N 118°01′15″W	Rock Creek	[5]
Marion Ditch	Marion	&10000000000000348000000348 ft (106 m)	44°45′45″N 122°53′51″W	Turner	[6]
Marquam Dry Lake Canal	Multnomah	&1000000000000001300000013 ft (4.0 m)	45°39′54″N 122°48′14″W	Sauvie Island	[7]
Maxwell Canal	Umatilla	&10000000000000525000000525 ft (160 m)	45°49′32″N 119°17′33″W	Hermiston	[8]
Maxwell Ditch	Baker	&100000000000035010000003,501 ft (1,067 m)	44°55′49″N 118°00′30″W	Rock Creek	[9]
Maxwell Ditch	Deschutes	&100000000000034020000003,402 ft (1,037 m)	44°14′39″N 121°30′51″W	Three Creek Butte	[10]
May Park Ditch	Union	&100000000000027560000002,756 ft (840 m)	45°20′25″N 118°03′47″W	La Grande	[11]
Mayfield Ditch	Klamath	&100000000000043340000004,334 ft (1,321 m)	43°32′09″N 121°38′49″W	Cryder Butte	[12]
McAlister Ditch	Union	&100000000000027030000002,703 ft (824 m)	45°19′09″N 117°59′04″W	Conley	[13]
McBride Ditch	Malheur	&100000000000021620000002,162 ft (659 m)	44°16′18″N 117°13′04″W	Olds Ferry	[14]
McCord Ditch	Baker	&100000000000034250000003,425 ft (1,044 m)	44°47′03″N 117°51′59″W	Baker City	[15]
McDonald Ditch	Jackson	&100000000000040910000004,091 ft (1,247 m)	42°06′39″N 122°48′44″W	Siskiyou Peak	[16]
McEwen Valley Ditch	Baker	&100000000000042810000004,281 ft (1,305 m)	44°41′17″N 118°09′07″W	Sumpter	[17]
McKenzie Ditch	Lane	&10000000000000436000000436 ft (133 m)	44°04′24″N 123°02′34″W	Eugene East	[18]
McKenzie-Greeley Ditch	Malheur	&100000000000037630000003,763 ft (1,147 m)	43°20′17″N 117°05′09″W	Rockville	[19]
McMullen Ditch	Baker	&100000000000025200000002,520 ft (770 m)	44°51′05″N 117°03′54″W	Posy Valley	[20]
McPherson Ditch	Baker	&100000000000034550000003,455 ft (1,053 m)	44°29′45″N 117°49′41″W	Wendt Butte	[21]
Medford Aqueduct	Jackson	&100000000000025130000002,513 ft (766 m)	42°32′56″N 122°36′03″W	Butte Falls	[22]
Medford Irrigation District Canal	Jackson	&100000000000016400000001,640 ft (500 m)	42°26′59″N 122°43′45″W	Brownsboro	[23]
Melhase Ditch	Klamath	&100000000000041760000004,176 ft (1,273 m)	42°41′29″N 122°00′19″W	Mares Egg Spring	[24]
Middle Ditch	Malheur	&100000000000021880000002,188 ft (667 m)	44°09′50″N 116°57′09″W	Weiser South	[25]
Mill Creek Canal	Wasco	&100000000000026800000002,680 ft (820 m)	44°53′33″N 121°29′26″W	Hehe Butte	[26]
Mill Creek Lateral	Wasco	&100000000000028380000002,838 ft (865 m)	44°52′21″N 121°30′17″W	Sawmill Butte	[27]
Mill Ditch	Malheur	&100000000000022340000002,234 ft (681 m)	43°59′36″N 117°12′33″W	Vale East	[28]
Mill Ditch	Baker	&100000000000035730000003,573 ft (1,089 m)	44°29′22″N 117°51′48″W	Wendt Butte	[29]
Miller Ditch	Harney	&100000000000036220000003,622 ft (1,104 m)	43°51′02″N 118°27′32″W	Drewsey	[30]
Miller Ditch	Baker	&100000000000035070000003,507 ft (1,069 m)	44°55′33″N 118°00′37″W	Rock Creek	[31]
Milton Ditch	Umatilla	&100000000000010830000001,083 ft (330 m)	45°55′30″N 118°23′02″W	Milton-Freewater	[32]
Mining Channel	Baker	&100000000000027760000002,776 ft (846 m)	44°53′05″N 117°08′14″W	Jimtown	[33]
Mission Ditch	Marion	&10000000000000184000000184 ft (56 m)	44°55′27″N 123°00′49″W	Salem West	[34]
Mitchell Butte Lateral	Malheur	&100000000000023100000002,310 ft (700 m)	43°49′18″N 117°05′26″W	Owyhee	[35]
Modoc Point Main Canal	Klamath	&100000000000041630000004,163 ft (1,269 m)	42°32′36″N 121°52′32″W	Chiloquin	[36]
Moody Ditch	Union	&100000000000034250000003,425 ft (1,044 m)	45°02′44″N 117°58′39″W	North Powder	[37]
Moonshine Ditch	Wallowa	&100000000000044450000004,445 ft (1,355 m)	45°19′40″N 117°14′12″W	Joseph	[38]
Moore Pratt Ditch	Baker	&100000000000033230000003,323 ft (1,013 m)	44°56′32″N 117°57′10″W	Haines	[39]
Morfitt Ditch	Malheur	&100000000000034090000003,409 ft (1,039 m)	44°23′00″N 117°43′34″W	Bridgeport	[40]
Moroney Canal	Tillamook	&1000000000000002000000020 ft (6.1 m)	45°37′44″N 123°56′15″W	Nehalem	[41]
Moss Ditch	Lake	&100000000000047640000004,764 ft (1,452 m)	42°31′25″N 120°26′39″W	Tucker Hill	[42]
Mount Hood Canal Hood	Hood River	&100000000000015350000001,535 ft (468 m)	45°32′04″N 121°34′12″W	Parkdale	[43]
Murphy Ditch	Josephine	&100000000000010330000001,033 ft (315 m)	42°20′44″N 123°21′31″W	Murphy	[44]
Murray Ditch	Grant	&100000000000023030000002,303 ft (702 m)	44°29′45″N 119°34′49″W	Dayville	[45]
N Canal	Umatilla	&10000000000000499000000499 ft (152 m)	45°51′25″N 119°16′36″W	Hermiston	[46]
Neal Creek Lateral Hood	Hood River	&10000000000000961000000961 ft (293 m)	45°37′24″N 121°29′54″W	Ketchum Reservoir	[47]
Nelson Ditch	Baker	&100000000000039860000003,986 ft (1,215 m)	44°49′49″N 118°00′30″W	Elkhorn Peak	[48]
Nesley Ditch	Union	&100000000000027850000002,785 ft (849 m)	45°20′38″N 118°05′12″W	La Grande	[49]
Nevada Canal	Malheur	&100000000000022080000002,208 ft (673 m)	43°59′16″N 117°06′12″W	Cairo	[50]
New Berryman Ditch	Jackson	&100000000000012760000001,276 ft (389 m)	42°15′19″N 123°11′44″W	Applegate	[51]
New Home Ditch	Baker	&100000000000034220000003,422 ft (1,043 m)	44°47′20″N 117°49′00″W	Baker City	[52]
Newt Young Ditch	Baker	&100000000000023520000002,352 ft (717 m)	44°47′17″N 117°09′52″W	Richland	[53]
North Alkali Creek Siphon	Malheur	&100000000000024930000002,493 ft (760 m)	43°37′20″N 117°04′29″W	Graveyard Point	[54]
North Antelope Canal	Malheur	&100000000000042620000004,262 ft (1,299 m)	42°55′50″N 117°15′34″W	Danner	[55]
North Canal	Malheur	&100000000000025330000002,533 ft (772 m)	43°52′00″N 117°06′40″W	Owyhee	[56]
North Canal	Klamath	&100000000000041010000004,101 ft (1,250 m)	42°03′40″N 121°45′46″W	Worden	[57]
North Canal	Klamath	&100000000000041900000004,190 ft (1,280 m)	42°09′05″N 121°16′58″W	Lorella	[58]
North Canal	Lake	&100000000000048560000004,856 ft (1,480 m)	42°08′00″N 120°33′07″W	Drews Gap	[59]
North Canal Flume	Lake	&100000000000048390000004,839 ft (1,475 m)	42°11′25″N 120°30′52″W	Drews Gap	[60]
North Canal Lateral	Malheur	&100000000000025030000002,503 ft (763 m)	43°57′10″N 117°05′25″W	Cairo	[61]
North Dixie Ditch	Baker	&100000000000037110000003,711 ft (1,131 m)	44°28′25″N 117°29′59″W	Rye Valley	[62]
North Fork Ditch	Klamath	&100000000000044850000004,485 ft (1,367 m)	42°27′40″N 121°02′54″W	Bly	[63]
North Oakander Drain	Malheur	&100000000000022640000002,264 ft (690 m)	43°42′09″N 117°03′18″W	Adrian	[64]
North Side Canal	Malheur	&100000000000039890000003,989 ft (1,216 m)	42°56′44″N 117°30′17″W	Arock	[65]
North Unit Main Canal	Deschutes	&100000000000029590000002,959 ft (902 m)	44°18′19″N 121°06′39″W	O'Neil	[66]
Nouque Ditch	Malheur	&100000000000048260000004,826 ft (1,471 m)	42°00′55″N 117°37′39″W	Tenmile Ranch	[67]
Number One C-Drain	Klamath	&100000000000040980000004,098 ft (1,249 m)	42°11′00″N 121°44′44″W	Altamont	[68]
Number Six Canal	Lake	&100000000000048460000004,846 ft (1,477 m)	42°09′31″N 120°30′06″W	Drews Gap	[69]
Nye Ditch	Jackson	&100000000000024410000002,441 ft (744 m)	42°43′24″N 122°32′39″W	Cascade Gorge	[70]
Nyssa Drain	Malheur	&100000000000021820000002,182 ft (665 m)	43°53′46″N 117°00′32″W	Cairo	[71]
Nyssa-Arcadia Drain	Malheur	&100000000000021820000002,182 ft (665 m)	43°53′30″N 117°00′16″W	Cairo	[72]
O Canal	Umatilla	&10000000000000472000000472 ft (144 m)	45°54′32″N 119°16′44″W	Umatilla	[73]
O Pipe	Umatilla	&10000000000000466000000466 ft (142 m)	45°53′54″N 119°15′12″W	Umatilla	[74]
O V L Ditch	Lake	&100000000000043080000004,308 ft (1,313 m)	42°30′45″N 120°18′24″W	Coglan Buttes SE	[75]
OA Lateral	Umatilla	&10000000000000463000000463 ft (141 m)	45°54′02″N 119°16′27″W	Umatilla	[76]
OB Lateral	Umatilla	&10000000000000463000000463 ft (141 m)	45°54′35″N 119°17′19″W	Umatilla	[77]
Oak Grove Ditch	Hood River	&100000000000032910000003,291 ft (1,003 m)	45°37′06″N 121°42′07″W	Dee	[78]
Oakander Drain	Malheur	&100000000000022440000002,244 ft (684 m)	43°42′40″N 117°03′51″W	Adrian	[79]
Ochoco Distribution Canal	Crook	&100000000000029820000002,982 ft (909 m)	44°20′59″N 120°52′09″W	Prineville	[80]
Ochoco Main Canal	Crook	&100000000000030510000003,051 ft (930 m)	44°19′30″N 120°47′04″W	Prineville	[81]
Oliver Drain	Malheur	&100000000000043180000004,318 ft (1,316 m)	43°03′54″N 117°18′11″W	Cow Lakes	[82]
Ontario Nyssa Canal	Malheur	&100000000000022970000002,297 ft (700 m)	43°53′48″N 117°02′15″W	Cairo	[83]
Orchard Ridge Ditch	Wasco	&100000000000022570000002,257 ft (688 m)	45°23′24″N 121°17′24″W	Wolf Run	[84]
Ordell Ditch	Union	&100000000000027130000002,713 ft (827 m)	45°23′04″N 118°02′03″W	Summerville	[85]
Oswego Canal	Clackamas	&10000000000000105000000105 ft (32 m)	45°23′37″N 122°43′10″W	Lake Oswego	[86]
Outside Canal	Lake	&100000000000043140000004,314 ft (1,315 m)	42°40′13″N 120°25′45″W	Coglan Buttes	[87]
Owens Ditch	Grant	&100000000000046490000004,649 ft (1,417 m)	44°03′15″N 118°58′34″W	Silvies	[88]
Owyhee Canal	Malheur	&100000000000023720000002,372 ft (723 m)	44°01′04″N 117°12′22″W	Henry Gulch	[89]
Owyhee Ditch	Malheur	&100000000000022340000002,234 ft (681 m)	43°47′24″N 117°04′59″W	Owyhee	[90]
Owyhee Siphon	Malheur	&100000000000023330000002,333 ft (711 m)	43°44′10″N 117°10′39″W	Owyhee Dam	[91]
P P & L Canal	Jackson	&100000000000026280000002,628 ft (801 m)	42°45′04″N 122°30′26″W	Whetstone Point	[92]
P1 Canal	Siskiyou (CA)	&100000000000040910000004,091 ft (1,247 m)	41°59′06″N 121°38′35″W	Lower Klamath Lake	[93]
Packwood Ditch	Baker	&100000000000036840000003,684 ft (1,123 m)	44°29′40″N 118°05′44″W	Hereford	[94]
Palmer Ditch	Crook	&100000000000039400000003,940 ft (1,200 m)	44°08′15″N 119°44′44″W	Powell Mountain	[95]
Panama Ditch	Grant	&100000000000028770000002,877 ft (877 m)	44°25′12″N 119°07′23″W	Mount Vernon	[96]
Parker Ditch	Malheur	&100000000000049020000004,902 ft (1,494 m)	42°38′48″N 117°03′58″W	Juniper Point	[97]
Patillo Ditches	Jackson	&100000000000015880000001,588 ft (484 m)	42°36′19″N 122°58′54″W	Boswell Mountain	[98]
Payton Ditch	Baker	&100000000000033460000003,346 ft (1,020 m)	44°52′08″N 117°54′04″W	Wingville	[99]
Pearson Ditch	Baker	&100000000000033400000003,340 ft (1,020 m)	45°00′12″N 117°57′54″W	North Powder	[100]
Pelican Cut Canal	Klamath	&100000000000041470000004,147 ft (1,264 m)	42°27′24″N 122°05′09″W	Pelican Bay	[101]
Peninsula Drainage Canal	Multnomah	&1000000000000001300000013 ft (4.0 m)	45°35′37″N 122°38′25″W	Portland	[102]
Penstock Olsen Ditch	Baker	&100000000000039960000003,996 ft (1,218 m)	44°55′15″N 118°03′04″W	Rock Creek	[103]
Peoples Irrigation Company Ditch	Crook	&100000000000028380000002,838 ft (865 m)	44°19′39″N 120°54′37″W	Houston Lake	[104]
Perkins Ditch	Baker	&100000000000027070000002,707 ft (825 m)	44°49′47″N 117°31′00″W	Keating	[105]
Perrin Lateral	Marion	&10000000000000328000000328 ft (100 m)	44°48′35″N 122°55′24″W	Turner	[106]
Peters Ditch	Linn	&10000000000000351000000351 ft (107 m)	44°41′48″N 122°48′56″W	Scio	[107]
Pettegrew Lateral	Jackson	&100000000000015260000001,526 ft (465 m)	42°31′04″N 122°47′14″W	Shady Cove	[108]
Philling-McFadden Ditch	Wheeler	&100000000000037430000003,743 ft (1,141 m)	44°27′30″N 119°48′38″W	Antone	[109]
Phillips Ditch	Baker	&100000000000050720000005,072 ft (1,546 m)	45°02′00″N 117°28′05″W	Bennet Peak	[110]
Phillips Ditch	Baker	&100000000000036840000003,684 ft (1,123 m)	44°49′50″N 117°58′44″W	Wingville	[111]
Phillips Ditch	Baker	&100000000000031400000003,140 ft (960 m)	44°53′12″N 117°28′31″W	Balm Creek Reservoir	[112]
Phoenix Canal	Jackson	&100000000000015120000001,512 ft (461 m)	42°18′04″N 122°54′16″W	Medford West	[113]
Pilot Butte Canal	Deschutes	&100000000000031270000003,127 ft (953 m)	44°12′32″N 121°14′02″W	Forked Horn Butte	[114]
Pilot Butte North Canal	Crook	&100000000000029530000002,953 ft (900 m)	44°23′06″N 121°04′41″W	Gray Butte	[115]
Pilot Butte South Canal	Crook	&100000000000028940000002,894 ft (882 m)	44°23′01″N 121°03′15″W	Gray Butte	[116]
Placer Ditch	Grant	&100000000000059380000005,938 ft (1,810 m)	44°43′08″N 118°28′32″W	Greenhorn	[117]
Plainview Ditch	Deschutes	&100000000000032740000003,274 ft (998 m)	44°13′20″N 121°28′29″W	Tumalo Dam	[118]
Pleasant View Canal	Umatilla	&10000000000000971000000971 ft (296 m)	45°56′38″N 118°24′27″W	Milton-Freewater	[119]
Plevna Ditch	Klamath	&100000000000041210000004,121 ft (1,256 m)	42°10′15″N 121°50′29″W	Klamath Falls	[120]
Pole Creek Ditch	Deschutes	&100000000000038980000003,898 ft (1,188 m)	44°14′15″N 121°36′18″W	Three Creek Butte	[121]
Poley-Allen Ditch	Wallowa	&100000000000034250000003,425 ft (1,044 m)	45°29′03″N 117°26′19″W	Lostine	[122]
Posy Valley Ditch	Baker	&100000000000031070000003,107 ft (947 m)	44°52′09″N 117°08′19″W	Richland	[123]
Potter Ditch	Wheeler	&100000000000017850000001,785 ft (544 m)	44°49′20″N 119°44′34″W	Kimberly	[124]
Poujade Ditch	Harney	&100000000000041440000004,144 ft (1,263 m)	43°37′28″N 118°43′24″W	Carson Point	[125]
Power Canal	Hood River	&10000000000000203000000203 ft (62 m)	45°41′19″N 121°30′40″W	Hood River	[126]
Powers Ditch	Baker	&100000000000036810000003,681 ft (1,122 m)	44°59′51″N 118°04′38″W	Rock Creek	[127]
Prescott Ditch	Union	&100000000000028250000002,825 ft (861 m)	45°11′59″N 117°51′39″W	Union	[128]
Priday Ditch	Lake	&100000000000052430000005,243 ft (1,598 m)	42°26′15″N 120°05′34″W	Drake Peak NE	[129]
Pump Ditch	Malheur	&100000000000023460000002,346 ft (715 m)	43°58′52″N 117°16′11″W	Vale West	[130]
Purvis Drain	Malheur	&100000000000023130000002,313 ft (705 m)	43°55′50″N 117°22′04″W	Vale West	[131]
Q Street Canal	Lane	&10000000000000443000000443 ft (135 m)	44°03′39″N 123°02′54″W	Eugene East	[132]
R Canal	Umatilla	&10000000000000541000000541 ft (165 m)	45°52′34″N 119°18′43″W	Umatilla	[133]
R-3 Pipe	Umatilla	&10000000000000541000000541 ft (165 m)	45°52′27″N 119°16′53″W	Hermiston	[134]
Red Ditch	Jackson	&100000000000010930000001,093 ft (333 m)	42°31′05″N 123°10′16″W	Wimer	[135]
Red Drain	Malheur	&100000000000022540000002,254 ft (687 m)	43°42′18″N 117°04′27″W	Adrian	[136]
Red House Ditch	Lake	&100000000000043340000004,334 ft (1,321 m)	42°42′55″N 120°30′39″W	Paisley	[137]
Reed Ditch	Baker	&100000000000035560000003,556 ft (1,084 m)	44°30′11″N 117°56′42″W	Brannan Gulch	[138]
Reed Ditch	Deschutes	&100000000000032610000003,261 ft (994 m)	44°15′59″N 121°32′04″W	Sisters	[139]
Reeds Ditch	Baker	&100000000000035500000003,550 ft (1,080 m)	44°30′00″N 117°56′14″W	Devils Heel	[140]
Rehart-Salt Creek Ditch	Lake	&100000000000047770000004,777 ft (1,456 m)	42°18′50″N 120°17′59″W	Crooked Creek Valley	[141]
Rineman Ditch	Harney	&100000000000041040000004,104 ft (1,251 m)	43°15′33″N 118°53′26″W	The Narrows	[142]
Ringsmeyer Ditch	Grant	&100000000000023030000002,303 ft (702 m)	44°29′02″N 119°33′54″W	Dayville	[143]
Riverside Canal	Malheur	&100000000000022600000002,260 ft (690 m)	43°42′10″N 117°03′39″W	Adrian	[144]
Robbins Ditch	Harney	&100000000000037570000003,757 ft (1,145 m)	43°52′43″N 118°35′55″W	Moffit Table	[145]
Robbins Drain	Malheur	&100000000000023130000002,313 ft (705 m)	43°55′25″N 117°22′04″W	Vale West	[146]
Robertson Ditch	Union	&100000000000032810000003,281 ft (1,000 m)	45°00′27″N 117°38′54″W	Medical Springs	[147]
Rock Creek Ditch	Wasco	&100000000000019320000001,932 ft (589 m)	45°11′49″N 121°18′19″W	Wamic	[148]
Rock Spring Siphon	Malheur	&100000000000024930000002,493 ft (760 m)	43°45′48″N 117°11′37″W	Mitchell Butte	[149]
Russell Drain	Malheur	&100000000000022770000002,277 ft (694 m)	43°55′10″N 117°17′04″W	Vale West	[150]
Rutherford Ditch	Malheur	&100000000000036190000003,619 ft (1,103 m)	44°21′04″N 117°52′35″W	Ironside	[151]
Ryegrass Ditch	Crook	&100000000000028670000002,867 ft (874 m)	44°19′13″N 120°51′46″W	Prineville	[152]
S Canal	Umatilla	&10000000000000463000000463 ft (141 m)	45°53′33″N 119°15′52″W	Umatilla	[153]
Saint Clair Canal	Harney	&100000000000041080000004,108 ft (1,252 m)	43°16′46″N 119°14′04″W	Northwest Harney Lake	[154]
Salem Ditch	Marion	&10000000000000433000000433 ft (132 m)	44°48′22″N 122°49′14″W	Stayton	[155]
Sand Creek Canal	Klamath	&100000000000046360000004,636 ft (1,413 m)	42°52′24″N 121°53′29″W	Sun Pass	[156]
Scott Ditch	Malheur	&100000000000035830000003,583 ft (1,092 m)	42°47′39″N 117°44′53″W	Rome	[157]
Scott Ditch	Wasco	&100000000000033830000003,383 ft (1,031 m)	45°07′44″N 117°57′46″W	Craig Mountain	[158]
Scotts Ditch	Malheur	&100000000000045640000004,564 ft (1,391 m)	42°41′25″N 117°19′53″W	Skull Creek	[159]
Seely Ditch	Clackamas	&10000000000000144000000144 ft (44 m)	45°18′59″N 122°47′04″W	Sherwood	[160]
Segundo Ditch	Malheur	&100000000000049510000004,951 ft (1,509 m)	42°12′00″N 117°53′51″W	Oregon Canyon Ranch	[161]
Sevenmile Canal	Klamath	&100000000000041440000004,144 ft (1,263 m)	42°34′59″N 121°58′04″W	Agency Lake	[162]
Sevenmile Ditch	Klamath	&100000000000041830000004,183 ft (1,275 m)	42°41′55″N 122°03′34″W	Mares Egg Spring	[163]
Sharp Ditch	Malheur	&100000000000043210000004,321 ft (1,317 m)	42°59′20″N 117°09′51″W	Antelope Reservoir	[164]
Shaw Brant Ditch	Union	&100000000000035140000003,514 ft (1,071 m)	45°04′32″N 117°58′31″W	North Powder	[165]
Shaw Ditch	Union	&100000000000034120000003,412 ft (1,040 m)	45°00′52″N 117°58′23″W	North Powder	[166]
Shaw Stewart Ditch	Baker	&100000000000035920000003,592 ft (1,095 m)	44°41′48″N 117°51′23″W	Bowen Valley	[167]
Sheep Creek Siphon	Malheur	&100000000000025160000002,516 ft (767 m)	43°54′29″N 117°05′01″W	Cairo	[168]
Sheep L Ditch	Harney	&100000000000044360000004,436 ft (1,352 m)	43°32′55″N 119°45′09″W	Potato Hills	[169]
Sheep Ridge Ditch	Wallowa	&100000000000036090000003,609 ft (1,100 m)	45°28′16″N 117°24′39″W	Lostine	[170]
Shelton Ditch	Marion	&10000000000000184000000184 ft (56 m)	44°55′33″N 123°00′34″W	Salem West	[171]
Shoemaker Ditch	Wheeler	&100000000000035140000003,514 ft (1,071 m)	44°31′34″N 120°08′39″W	Mitchell	[172]
Short Low Ditch	Umatilla	&10000000000000584000000584 ft (178 m)	46°00′19″N 118°34′24″W	Lowden	[173]
Sidney Ditch	Marion	&10000000000000279000000279 ft (85 m)	44°44′02″N 122°57′53″W	Crabtree	[174]
Sidney Power Ditch	Marion	&10000000000000200000000200 ft (61 m)	44°46′57″N 123°04′16″W	Sidney	[175]
Siegle Ditch	Baker	&100000000000023200000002,320 ft (710 m)	44°43′50″N 117°07′54″W	Daly Creek	[176]
Silver Grange Ditch	Wallowa	&100000000000074470000007,447 ft (2,270 m)	45°22′01″N 117°21′57″W	Chief Joseph Mountain	[177]
Silver L Canal	Lake	&100000000000044390000004,439 ft (1,353 m)	43°06′20″N 121°03′44″W	Hager Mountain	[178]
Silver Lake Ditch	Wallowa	&100000000000042550000004,255 ft (1,297 m)	45°21′16″N 117°08′25″W	Joseph	[179]
Singer Drain	Malheur	&100000000000022010000002,201 ft (671 m)	43°42′43″N 117°04′36″W	Adrian	[180]
Sitz Ditch	Harney	&100000000000036550000003,655 ft (1,114 m)	43°50′10″N 118°29′04″W	Drewsey	[181]
Skipanon Waterway	Clatsop	&100000000000000070000007 ft (2.1 m)	46°10′35″N 123°54′38″W	Warrenton	[182]
Skunk Farm Canal	Harney	&100000000000041400000004,140 ft (1,260 m)	43°05′25″N 118°50′11″W	Diamond Swamp	[183]
Slide Ditch	Malheur	&100000000000021000000002,100 ft (640 m)	44°14′10″N 117°00′44″W	Moores Hollow	[184]
Slusher Canal	Umatilla	&10000000000000738000000738 ft (225 m)	45°40′54″N 119°05′39″W	Nolin	[185]
Smith Ditch	Morrow	&100000000000048590000004,859 ft (1,481 m)	45°09′55″N 119°19′22″W	Arbuckle Mountain	[186]
Smith Ditch	Deschutes	&100000000000031920000003,192 ft (973 m)	44°17′24″N 121°33′04″W	Sisters	[187]
Smith Ditch	Crook	&100000000000033630000003,363 ft (1,025 m)	44°18′24″N 120°36′24″W	Cadle Butte	[188]
Smith Ditch	Baker	&100000000000036150000003,615 ft (1,102 m)	44°44′10″N 117°49′45″W	Bowen Valley	[189]
Smith McPhee Ditch	Baker	&100000000000033300000003,330 ft (1,010 m)	44°59′06″N 117°55′59″W	Haines	[190]
Snively Siphon	Malheur	&100000000000023390000002,339 ft (713 m)	43°43′00″N 117°10′59″W	Owyhee Dam	[191]
Snow Creek Ditch	Deschutes	&100000000000038980000003,898 ft (1,188 m)	44°08′34″N 121°29′39″W	Tumalo Dam	[192]
Sodom Ditch	Linn	&10000000000000269000000269 ft (82 m)	44°26′52″N 123°03′22″W	Halsey	[193]
South Alkali Drain	Malheur	&100000000000022740000002,274 ft (693 m)	43°43′03″N 117°02′25″W	Adrian	[194]
South Antelope Canal	Malheur	&100000000000042620000004,262 ft (1,299 m)	42°55′04″N 117°17′08″W	Danner	[195]
South Canal	Owyhee (ID)	&100000000000024930000002,493 ft (760 m)	43°31′42″N 116°57′47″W	Homedale	[196]
South Canal	Malheur	&100000000000025430000002,543 ft (775 m)	43°39′47″N 117°05′51″W	Adrian	[197]
South Canal	Lake	&100000000000047830000004,783 ft (1,458 m)	42°02′24″N 120°33′00″W	Fitzwater Point	[198]
South Catherine Ditch	Union	&100000000000063290000006,329 ft (1,929 m)	45°05′44″N 117°30′47″W	Flagstaff Butte	[199]
South Diamond Canal	Harney	&100000000000041440000004,144 ft (1,263 m)	43°01′38″N 118°47′28″W	Diamond Swamp	[200]
South Ditch	Umatilla	&10000000000000548000000548 ft (167 m)	45°59′50″N 118°38′38″W	Smeltz	[201]
South Dixie Ditch	Baker	&100000000000034380000003,438 ft (1,048 m)	44°26′35″N 117°28′34″W	Rye Valley	[202]
South Fork Canal	Jackson	&100000000000046650000004,665 ft (1,422 m)	42°18′29″N 122°22′14″W	Brown Mountain	[203]
South Highline Canal	Josephine	&100000000000010430000001,043 ft (318 m)	42°24′44″N 123°19′04″W	Grants Pass	[204]
South Main Canal	Josephine	&10000000000000961000000961 ft (293 m)	42°25′04″N 123°19′04″W	Grants Pass	[205]
South Side Canal	Malheur	&100000000000040290000004,029 ft (1,228 m)	42°52′44″N 117°28′11″W	Threemile Hill	[206]
Southworth Ditch	Grant	&100000000000046920000004,692 ft (1,430 m)	44°09′20″N 118°57′19″W	Seneca	[207]
Spence Ditch	Umatilla	&100000000000012600000001,260 ft (380 m)	45°54′09″N 118°20′34″W	Bowlus Hill	[208]
Spring Creek Ditch	Baker	&100000000000031500000003,150 ft (960 m)	44°50′25″N 117°12′39″W	Richland	[209]
Springer Ditch	Wasco	&100000000000044850000004,485 ft (1,367 m)	45°21′04″N 121°27′26″W	Flag Point	[210]
Stacey Ditch	Malheur	&100000000000023360000002,336 ft (712 m)	43°56′50″N 117°24′59″W	Vines Hill	[211]
Stallard Ditch	Harney	&100000000000035700000003,570 ft (1,090 m)	43°50′35″N 118°18′49″W	Drinkwater Pass	[212]
Stanfield Branch Furnish Ditch	Umatilla	&10000000000000653000000653 ft (199 m)	45°48′08″N 119°10′56″W	Stanfield	[213]
Stanfield Drain	Umatilla	&10000000000000623000000623 ft (190 m)	45°47′19″N 119°10′49″W	Stanfield	[214]
Star Creek Ditch	Malheur	&100000000000049050000004,905 ft (1,495 m)	43°25′45″N 117°56′51″W	Star Creek Reservoir	[215]
State Ditch	Union	&100000000000026840000002,684 ft (818 m)	45°23′25″N 117°55′51″W	Imbler	[216]
Stearns Ditch	Crook	&100000000000029070000002,907 ft (886 m)	44°13′19″N 120°52′29″W	Stearns Butte	[217]
Sterling Ditch	Jackson	&100000000000024770000002,477 ft (755 m)	42°11′53″N 122°56′49″W	Sterling Creek	[218]
Steward Ditch	Baker	&100000000000031070000003,107 ft (947 m)	44°52′20″N 117°29′04″W	Glasgow Butte	[219]
Steward Ditch	Grant	&100000000000024800000002,480 ft (760 m)	44°27′35″N 119°25′34″W	Aldrich Mountain North	[220]
Stewart Carter Ditch	Malheur	&100000000000021780000002,178 ft (664 m)	44°01′03″N 116°59′30″W	Payette	[221]
Stewart Ditch	Grant	&100000000000024800000002,480 ft (760 m)	44°27′35″N 119°25′34″W	Aldrich Mountain North	[222]
Stock Ditch	Lake	&100000000000043080000004,308 ft (1,313 m)	42°39′35″N 120°28′37″W	Coglan Buttes	[223]
Stockwater Ditch	Harney	&100000000000045500000004,550 ft (1,390 m)	42°24′45″N 118°55′14″W	Garrison Lake	[224]
Stradley Drain	Malheur	&100000000000022600000002,260 ft (690 m)	43°41′48″N 117°03′52″W	Adrian	[225]
Strode Ditch	Malheur	&100000000000038620000003,862 ft (1,177 m)	43°18′05″N 117°04′02″W	Rockville	[226]
Stubblefield Canal	Harney	&100000000000041170000004,117 ft (1,255 m)	43°11′28″N 118°56′36″W	Coyote Buttes	[227]
Succor Creek Siphon	Malheur	&100000000000025230000002,523 ft (769 m)	43°35′10″N 117°04′24″W	Graveyard Point	[228]
Summer Lake I D Canal	Lake	&100000000000042750000004,275 ft (1,303 m)	42°56′40″N 120°47′49″W	Summer Lake	[229]
Sunnyslope Ditch	Union	&100000000000033170000003,317 ft (1,011 m)	45°03′18″N 117°55′26″W	North Powder	[230]
Swalley Canal	Deschutes	&100000000000034380000003,438 ft (1,048 m)	44°06′46″N 121°17′18″W	Bend	[231]
Swayne Ditch	Jackson	&100000000000015910000001,591 ft (485 m)	42°08′49″N 123°03′24″W	Ruch	[232]
Swinger Ditch	Baker	&100000000000034050000003,405 ft (1,038 m)	44°54′50″N 117°52′20″W	Magpie Peak	[233]
T Canal	Klamath	&100000000000041370000004,137 ft (1,261 m)	42°02′35″N 121°23′57″W	Malin	[234]
T Canal	Umatilla	&10000000000000472000000472 ft (144 m)	45°53′34″N 119°14′38″W	Hat Rock	[235]
Table Rock Canal	Jackson	&100000000000012170000001,217 ft (371 m)	42°27′19″N 122°54′39″W	Sams Valley	[236]
Talent Lateral	Jackson	&100000000000017190000001,719 ft (524 m)	42°16′13″N 122°51′58″W	Medford East	[237]
Talent Middle Canal	Jackson	&100000000000016960000001,696 ft (517 m)	42°15′29″N 122°50′01″W	Medford East	[238]
Taylor Ditch	Baker	&100000000000042810000004,281 ft (1,305 m)	44°40′25″N 117°24′59″W	Lawrence Creek	[239]
Taylor Ditch	Umatilla	&10000000000000682000000682 ft (208 m)	45°42′49″N 119°10′34″W	Echo	[240]
The Drain	Josephine	&10000000000000876000000876 ft (267 m)	42°25′47″N 123°25′34″W	Wilderville	[241]
The Mill Ditch	Grant	&100000000000036090000003,609 ft (1,100 m)	44°26′54″N 118°42′20″W	Prairie City	[242]
Thompson Ditch	Baker	&100000000000040030000004,003 ft (1,220 m)	44°31′42″N 118°13′41″W	Unity Reservoir	[243]
Three Sisters Canal	Deschutes	&100000000000028180000002,818 ft (859 m)	44°20′18″N 121°23′27″W	Henkle Butte	[244]
Threemile Ditch	Wasco	&100000000000020900000002,090 ft (640 m)	45°14′11″N 121°19′49″W	Wamic	[245]
Throop Ditch	Grant	&100000000000023420000002,342 ft (714 m)	44°28′42″N 119°31′59″W	Dayville	[246]
Tiger Ditch	Baker	&100000000000039960000003,996 ft (1,218 m)	44°28′30″N 118°13′59″W	Unity	[247]
Tobin Ditch	Baker	&100000000000026120000002,612 ft (796 m)	44°49′11″N 117°12′27″W	Richland	[248]
Tokay Canal	Josephine	&100000000000011090000001,109 ft (338 m)	42°26′34″N 123°18′04″W	Grants Pass	[249]
Townsite Ditch	Malheur	&100000000000030020000003,002 ft (915 m)	43°44′43″N 118°05′38″W	Juntura	[250]
Travillion-Koester ditch	Baker	&100000000000032550000003,255 ft (992 m)	45°00′00″N 117°52′51″W	North Powder	[251]
Trout Creek	Union	&100000000000062370000006,237 ft (1,901 m)	45°04′52″N 117°30′34″W	Flagstaff Butte	[252]
Trowbridge Ditch	Grant	&100000000000031200000003,120 ft (950 m)	44°25′28″N 118°56′54″W	John Day	[253]
Tudor Ditch	Malheur	&100000000000039240000003,924 ft (1,196 m)	42°41′25″N 117°54′34″W	Flat Top Mountain	[254]
Tumalo Canal	Deschutes	&100000000000033270000003,327 ft (1,014 m)	44°11′10″N 121°22′38″W	Tumalo Dam	[255]
Tumalo Feed Canal	Deschutes	&100000000000035370000003,537 ft (1,078 m)	44°07′06″N 121°22′59″W	Shevlin Park	[256]
Tunnel Millrace	Lane	&10000000000000561000000561 ft (171 m)	43°53′21″N 123°00′43″W	Creswell	[257]
U S B Line Canal	Umatilla	&10000000000000676000000676 ft (206 m)	45°47′59″N 119°14′49″W	Stanfield	[258]
Umatilla Drain	Umatilla	&10000000000000440000000440 ft (130 m)	45°53′59″N 119°18′02″W	Umatilla	[259]
Uncle Tom Slough	Columbia	&1000000000000001300000013 ft (4.0 m)	46°07′19″N 123°15′54″W	Marshland	[260]
Upper Ditch	Malheur	&100000000000022050000002,205 ft (672 m)	44°10′39″N 116°59′03″W	Weiser South	[261]
Upper Fisher Long Ditch	Baker	&100000000000036910000003,691 ft (1,125 m)	44°55′19″N 118°02′04″W	Rock Creek	[262]
Upper Hanley Canal	Harney	&100000000000041400000004,140 ft (1,260 m)	43°34′03″N 118°58′05″W	Poison Creek Slough	[263]
Upper Pump Canal	Malheur	&100000000000022640000002,264 ft (690 m)	43°58′30″N 117°08′54″W	Vale East	[264]
Upper West Lateral	Jackson	&100000000000021720000002,172 ft (662 m)	42°12′52″N 122°48′19″W	Talent	[265]
Upton Lateral	Jackson	&100000000000012860000001,286 ft (392 m)	42°23′29″N 122°53′22″W	Sams Valley	[266]
Urlezaga Ditch	Malheur	&100000000000043240000004,324 ft (1,318 m)	42°59′22″N 117°09′04″W	Antelope Reservoir	[267]
V Canal	Klamath	&100000000000041700000004,170 ft (1,270 m)	42°03′39″N 121°25′24″W	Malin	[268]
Vale Oregon Canal	Malheur	&100000000000025690000002,569 ft (783 m)	43°59′41″N 117°19′42″W	Vale West	[269]
Valley View Drain	Malheur	&100000000000021820000002,182 ft (665 m)	43°58′20″N 116°59′44″W	Nyssa	[270]
Van Brimmer Canal	Klamath	&100000000000040810000004,081 ft (1,244 m)	42°00′06″N 121°36′05″W	Merrill	[271]
Vines Ditch	Malheur	&100000000000023650000002,365 ft (721 m)	43°56′19″N 117°26′32″W	Vines Hill	[272]
Visher Feed Canal	Malheur	&100000000000036120000003,612 ft (1,101 m)	43°26′00″N 118°11′24″W	McEwen Butte	[273]
Volmer Ditch	Hood River	&100000000000027230000002,723 ft (830 m)	45°28′27″N 121°37′14″W	Dog River	[274]
Vroman Ditch	Jackson	&100000000000011480000001,148 ft (350 m)	42°31′49″N 123°09′24″W	Wimer	[275]
W A Lateral	Klamath	&100000000000042780000004,278 ft (1,304 m)	43°36′47″N 121°33′49″W	Masten Butte	[276]
W R Lateral	Deschutes	&100000000000042720000004,272 ft (1,302 m)	43°36′49″N 121°32′54″W	Masten Butte	[277]
Wade Ditch	Wallowa	&100000000000034380000003,438 ft (1,048 m)	45°28′27″N 117°22′55″W	Lostine	[278]
Walker Basin Canal	Klamath	&100000000000042880000004,288 ft (1,307 m)	43°35′29″N 121°34′09″W	Masten Butte	[279]
Walker Ditch	Marion	&10000000000000135000000135 ft (41 m)	45°04′02″N 122°49′34″W	Silverton	[280]
Walker Drain	Malheur	&100000000000022440000002,244 ft (684 m)	43°40′58″N 117°04′00″W	Adrian	[281]
Wallowa Valley Improvement Canal	Wallowa	&100000000000049340000004,934 ft (1,504 m)	45°18′10″N 117°06′32″W	Kinney Lake	[282]
Walterville Canal	Lane	&10000000000000551000000551 ft (168 m)	44°04′04″N 122°50′28″W	Walterville	[283]
Wapinitia Canal	Wasco	&100000000000019230000001,923 ft (586 m)	45°09′14″N 121°13′09″W	Tygh Valley	[284]
Ward Drain	Malheur	&100000000000021820000002,182 ft (665 m)	43°52′05″N 117°00′19″W	Owyhee	[285]
Warm Springs Canal	Harney	&100000000000041830000004,183 ft (1,275 m)	42°50′39″N 118°54′54″W	Frenchglen	[286]
Warm Springs Pump Canal	Malheur	&100000000000023130000002,313 ft (705 m)	44°02′08″N 117°16′21″W	Willowcreek	[287]
Waterbury Ditch	Baker	&100000000000024440000002,444 ft (745 m)	44°47′55″N 117°12′00″W	Richland	[288]
Watts and Topping Ditch	Josephine	&100000000000011910000001,191 ft (363 m)	42°17′24″N 123°14′36″W	Applegate	[289]
Weatherspoon Ditch	Baker	&100000000000047640000004,764 ft (1,452 m)	45°40′00″N 117°16′44″W	Sled Springs	[290]
Welch Drain	Malheur	&100000000000022110000002,211 ft (674 m)	43°41′29″N 117°03′01″W	Adrian	[291]
Wendt Ditch	Baker	&100000000000034020000003,402 ft (1,037 m)	44°29′12″N 117°43′56″W	Bridgeport	[292]
West Canal	Klamath	&100000000000041500000004,150 ft (1,260 m)	42°04′48″N 121°15′23″W	Bryant Mountain	[293]
West Canal	Klamath	&100000000000040980000004,098 ft (1,249 m)	42°01′25″N 121°51′24″W	Worden	[294]
West Extension Irrigation Canal	Morrow	&10000000000000397000000397 ft (121 m)	45°54′04″N 119°25′55″W	Irrigon	[295]
West Lateral	Jackson	&100000000000019850000001,985 ft (605 m)	42°14′27″N 122°49′18″W	Talent	[296]
West Side Ditch	Grant	&100000000000045540000004,554 ft (1,388 m)	43°58′10″N 118°57′19″W	Trout Creek	[297]
Westland A Canal	Umatilla	&10000000000000561000000561 ft (171 m)	45°51′24″N 119°21′19″W	Hermiston	[298]
Westland F Canal	Umatilla	&10000000000000535000000535 ft (163 m)	45°50′19″N 119°21′29″W	Hermiston	[299]
Westside Ditch	Wallowa	&100000000000036250000003,625 ft (1,105 m)	45°28′50″N 117°26′54″W	Lostine	[300]
Wham Whited Ditch	Baker	&100000000000039110000003,911 ft (1,192 m)	44°29′30″N 118°12′44″W	Unity	[301]
Whitby Ditch	Benton	&10000000000000249000000249 ft (76 m)	44°28′16″N 123°18′23″W	Greenberry	[302]
White Ditch	Umatilla	&10000000000000640000000640 ft (200 m)	45°58′13″N 118°34′01″W	Waterman	[303]
Whiteline Ditch	Klamath	&100000000000044260000004,426 ft (1,349 m)	42°19′55″N 121°44′19″W	Whiteline Reservoir	[304]
Wilcox Ditch	Lake	&100000000000049510000004,951 ft (1,509 m)	42°15′25″N 120°21′04″W	Crooked Creek Valley	[305]
Wilcox Ditch	Baker	&100000000000039760000003,976 ft (1,212 m)	44°54′21″N 118°02′48″W	Rock Creek	[306]
Willamette Falls Locks and Canal	Clackamas	&1000000000000001000000010 ft (3.0 m)	45°21′18″N 122°37′3.47″W
Willams Ditch	Harney	&100000000000035300000003,530 ft (1,080 m)	43°48′10″N 118°19′54″W	Drinkwater Pass	[307]
Williams Ditch	Baker	&100000000000039760000003,976 ft (1,212 m)	44°50′55″N 118°00′34″W	Elkhorn Peak	[308]
Williams Ditch	Baker	&100000000000035040000003,504 ft (1,068 m)	44°57′10″N 118°01′07″W	Rock Creek	[309]
Williams Ditch	Baker	&100000000000044910000004,491 ft (1,369 m)	44°22′49″N 118°09′54″W	Unity	[310]
Williams Drain	Klamath	&100000000000043310000004,331 ft (1,320 m)	42°25′05″N 121°21′24″W	Beatty	[311]
Williams and Whalen Ditch	Jackson	&100000000000012070000001,207 ft (368 m)	42°32′59″N 123°07′33″W	McConville Peak	[312]
Williamson River Ditch	Klamath	&100000000000045540000004,554 ft (1,388 m)	42°59′24″N 121°31′29″W	Wildhorse Ridge	[313]
Willow Valley Canal	Klamath	&100000000000044230000004,423 ft (1,348 m)	42°00′50″N 121°08′34″W	Langell Valley	[314]
Wilson Ditch	Lake	&100000000000048850000004,885 ft (1,489 m)	42°19′20″N 120°22′26″W	Crooked Creek Valley	[315]
Wocus Drainage Canal	Klamath	&100000000000041310000004,131 ft (1,259 m)	42°14′54″N 121°54′19″W	Keno	[316]
Wolf Run Ditch	Wasco	&100000000000029130000002,913 ft (888 m)	45°24′59″N 121°20′47″W	Wolf Run	[317]
Wood River Canal	Klamath	&100000000000041440000004,144 ft (1,263 m)	42°37′39″N 121°58′28″W	Fort Klamath	[318]
Wrenn Dobbin Ditch	Wallowa	&100000000000041170000004,117 ft (1,255 m)	45°22′02″N 117°12′25″W	Joseph	[319]
Wright Ditch	Union	&100000000000033300000003,330 ft (1,010 m)	45°00′46″N 117°39′06″W	Medical Springs	[320]
Y J Canal	Klamath	&100000000000045310000004,531 ft (1,381 m)	42°57′29″N 121°35′54″W	Wildhorse Ridge	[321]
Yamsay Land and Cattle Company Ditch	Klamath	&100000000000045310000004,531 ft (1,381 m)	42°51′24″N 121°48′34″W	Fuego	[322]
Yankee Creek Siphon	Jackson	&100000000000015420000001,542 ft (470 m)	42°25′14″N 122°44′16″W	Brownsboro	[323]
Yonna Ditch	Klamath	&100000000000041530000004,153 ft (1,266 m)	42°13′29″N 121°26′52″W	Bonanza	[324]
Young Ditch	Malheur	&100000000000037340000003,734 ft (1,138 m)	44°20′10″N 117°56′34″W	Ironside	[325]
Z Canal	Umatilla	&10000000000000535000000535 ft (163 m)	45°52′10″N 119°16′58″W	Hermiston	[326]
ZX Brattain Ditch	Lake	&100000000000043140000004,314 ft (1,315 m)	42°38′43″N 120°30′39″W	Paisley	[327]
Zell Ditch	Umatilla	&100000000000011610000001,161 ft (354 m)	45°54′41″N 118°22′01″W	Bowlus Hill	[328]
Zimmerman Ditch	Malheur	&100000000000039470000003,947 ft (1,203 m)	42°58′05″N 117°39′34″W	Owyhee Butte	[329]