Reservoir report

Oregon reservoirs & dams

Every documented dam and reservoir in Oregon — with normal storage capacity, dam height, max discharge, hazard classification, and drainage area. Sourced from USACE NID and state water-resource agencies.

Dams in Oregon

890

Total storage

10,582,770ac·ft

High-hazard dams

173

Updated

May 17

Open the Oregon reservoir layer on the map Every dam and reservoir filtered to Oregon on the interactive map.

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May

2026

Reservoir report

Oregon has over 1,200 reservoirs and dams, with the largest being the Owyhee Reservoir, which can hold up to 1.1 million acre-feet of water. Other major reservoirs include the Detroit Reservoir, Wickiup Reservoir, and Crane Prairie Reservoir. The sources of water for these reservoirs include the Columbia River, Snake River, Deschutes River, and their tributaries. The snowpack in the mountains is a crucial factor in filling these reservoirs, with the Cascades and Blue Mountains being the primary sources.

Record levels for reservoirs and dams vary depending on location, but generally occur during periods of heavy precipitation or snowmelt. Drought conditions are also a concern, as low snowpack and reduced streamflow can impact water availability for irrigation and recreation. Seasonal trends in precipitation and snowpack influence water levels in reservoirs, with lower levels typically seen in late summer and early fall. Overall, the hydrology in Oregon is heavily influenced by the state's topography, with water sources being mainly mountain-fed and dependent on snowpack accumulation.

Oregon at a glance

Storage, hazard, and history

How the Oregon dam inventory breaks down -- aggregate stats computed across every documented dam in the state.

Hazard classification

High173
Significant172
Low545

USACE downstream-consequence rating, not failure likelihood.

Notable dams

Tallest Cougar Dam 473 ft
Oldest Willamette Falls Locks 1873
Total storage All Oregon dams 10,582,770 ac·ft

Built by decade

Most U.S. dams were built mid-20th century during the federal water-development era.

Full inventory

Oregon dams & reservoirs

Every documented dam in Oregon. Sortable by any column; quickly filterable by name. Numeric columns heat-mapped from light to deep based on value. Tap any dam for the full report.

Name	Year built	Normal storage	Dam height	Max discharge	Hazard	Drainage area
Bonneville Locks And Dam	1938	277,000	56	1,600,000	High	240,000
The Dalles Lock And Dam	1957	277,000	116	2,290,000	High	237,000
Big Cliff Dam	1954	2,630	131	176,000	High	452
Detroit Dam	1953	155,000	369	176,000	High	438
Cottage Grove Dam	1942	33,000	81	40,800	High	104
Dexter Dam	1955	22,200	65	270,000	High	996
Fall Creek Dam	1965	115,000	186	82,400	High	184
Dorena Dam	1949	77,500	135	97,500	High	265
Lookout Point Dam	1953	455,840	249	270,000	High	991
Green Peter Dam	1967	160,000	320	110,000	High	277
John Day Lock And Dam	1968	530,000	118	2,250,000	High	226,000
Foster Dam	1967	56,000	125	195,000	High	494
Blue River Dam	1968	83,000	270	53,200	High	88
Hills Creek Dam	1962	350,600	328	141,600	High	389
Cougar Dam	1963	208,000	473	76,000	High	208
Fern Ridge Dam	1941	102,200	46	45,000	High	275
Fern Ridge Dam - Dike 1	·	0	8	·	Low	·
Fern Ridge Dam - Dike 2	·	42,549	14	·	Low	·
Somerville, The Reservoir	1912	2,000	30	900	Low	34
Camp Creek Reservoir (Baker)	1932	1,700	45	900	Significant	90
Fish Lake	1907	7,897	46	1,700	High	24
Fourmile Lake	1921	15,600	25	500	Low	15
Whited Reservoir (Baker)	1921	700	45	2,750	Significant	73
Bolan Lake Dam	1972	140	12	100	Low	0
Morfitt Reservoir	1914	280	20	3	Low	1
Vanderveer Dam	1920	140	45	100	Low	6
Lyle Reservoir	1911	103	12	140	Low	50
Desert Meadows Reservoir Dam	1913	80	·	66	Low	1
Keene Creek Diversion	1959	339	67	2,650	Significant	20
Van Patton Lake Dam	1929	160	14	400	Low	0
Scott Dam	1911	146	18	130	Low	1
Kinney Lake	1913	315	22	15	Low	0
Sawmill Gulch Reservoir	1916	150	30	575	Low	0
Mccoy Reservoir	1915	1,045	15	333	Low	4
Simms Reservoir	1915	415	15	333	Low	6
Long Creek Reservoir	1918	70	20	144	Low	3
Crow - F. M. Reservoir	1916	140	15	17	Low	2
Butte	1918	500	14	670	Low	55
Drews	1914	62,500	60	2,900	High	212
Arritola Reservoir	1916	2,000	18	15	Low	1
Corliss	1919	75	10	155	Low	2
Anderson-Lower (Malheur)	1917	2,990	34	344	Low	78
Beer S Reservoir	1914	400	11	150	Low	4
Smith, C.A. Reservoir	1916	99	10	15	Low	0
Murray Reservoir	1927	467	21	199	Low	2
Beede South	1916	2,078	22	540	Significant	18
Beede North	1916	183	12	10	Significant	18
Williams-Sherman Reservoir	1919	300	25	666	Low	9
Minam Lake Reservoir Company	1922	400	14	175	Low	1
Fred Scott Reservoir	1921	800	24	960	Low	35
Pony Creek - Lower	1988	400	32	1,150	High	4
Oriana Reservoir	1931	480	16	167	Low	1
Lower Clark Reservoir	2004	64	·	579	Low	7
Shumway Reservoir	1921	590	10	593	Low	6
Echo Lake Reservoir	1922	300	10	205	Low	1
Traverse Lake Reservoir	1922	120	10	80	Low	3
South Arm Reservoir	1908	560	19	180	Low	5
Looking Glass Reservoir	1919	527	13	38	Low	0
Eagle Lake Dam	1920	844	33	212	Low	1
Stimmel Reservoir	1921	300	17	6	Low	0
Warm Springs	1918	192,400	100	9,800	High	1,100
Greely Dam	2004	0	·	5	Low	·
Deary Reservoir	1937	360	27	220	Low	100
Swamp Creek Reservoir (Harney)	1925	50	18	530	Low	4
Rock Lake	1928	452	28	108	Low	0
Salt Lick Reservoir	1933	300	23	4	Low	8
Becker	1927	150	10	50	Low	1
Pringle Flat Reservoir	1923	480	15	700	Low	8
Box Springs Reservoir	1928	155	13	290	Low	2
Upper Clark Reservoir	2004	62	·	0	Low	·
Clear Creek Reservoir-West Fork	1924	257	16	150	Significant	1
Ochoco	1920	45,024	136	13,500	High	295
Forcia And Larsen Log Pond	1923	90	19	191	Significant	8
Sitz Reservoir	1924	182	22	290	Low	1
Veterans Reservoir	1923	18	30	26	Significant	0
Van Raden	1975	96	27	750	High	3
Barry, Nick Reservoir	1927	1,244	27	550	Low	21
Hosler (Reeder Gulch	1928	820	114	1,434	High	20
Fishhole Creek Reservoir	1928	56	17	110	Low	8
Love Reservoir (Baker)	1952	920	30	425	Significant	20
Haskins Creek Dam	1930	704	85	2,100	Significant	7
Tarheel	1924	100	·	·	Significant	1
Brown Reservoir (Harney)	1923	800	32	25	Low	18
Maher Dam	1934	300	14	2,900	Low	1
Holbrook Reservoir	1930	740	25	106	Low	6
Mehlhorn And Bassett	1939	216	20	230	Low	1
Pine Creek Reservoir (Baker)	1933	115	18	230	Low	1
Antelope	1923	70,000	56	440	High	53
Lapham Reservoir	1920	178	16	100	Low	1
Thompson Valley Diversion (Slid)	1915	460	48	5,000	Significant	180
Green Point-Upper (No. 2)	1937	715	31	211	Significant	1
Green Point-Lower (No. 1)	1938	250	36	211	Significant	1
Three Creek	·	0	21	·	Significant	2
Little Three Creek	·	0	8	·	Low	1
Lloyd Gift Reservoir	1940	293	12	2,428	Low	2
Crowley	1938	3,700	90	420	High	48
Gulch Reservoir	1938	56	17	79	Low	12
Rink Creek Reservoir	1939	240	55	190	Significant	1
Middle	1940	168	39	50	High	4
Wickiup Lake (Astoria)	1940	340	30	39	High	11
Bryant Mt. Dam	1946	80	15	46	Low	4
Pierce Reservoir	1955	230	29	400	Low	1
Strong	1926	56	32	150	High	1
Hl Creek Reservoir	1943	130	10	67	Low	8
Pacific Plywood Log Pond	1944	132	15	0	Low	0
Thompson Valley Reservoir	1922	21,040	48	2,514	Significant	150
Badger Lake (Hood River)	1942	532	22	322	Low	2
Rock Creek (Wasco)	1947	1,280	51	904	High	10
Dailey Reservoir Log Pond	1944	365	22	691	Low	2
Camp Creek Reservoir (Crook)	1945	189	15	210	Low	6
Skull Creek Reservoir	1934	100	30	160	Low	18
White Line Reservoir	1959	2,692	21	1,200	Low	42
Dillard Lumber Co Dike	1946	285	15	50	Significant	0
Rock Creek-Upper (Harney)	1970	5,818	45	1,356	Low	4
Three Mile Creek Reservoir	1946	1,600	12	420	Low	50
Foster Log Pond	1946	375	17	133	High	0
Munn Reservoir	1947	120	23	1,450	Low	1
Dick Dam	1950	120	28	1,343	Significant	2
Lower Twelvemile (Buker Res)	1949	150	23	403	Low	10
Lillard Dam	1950	840	26	452	Low	12
Echave Reservoir (Malheur)	1954	55	34	292	Low	2
Georgia Pacific Log Pond	1949	237	11	0	Low	0
Miller Reservoir (Harney)	1947	362	48	293	Low	3
Oakridge Mill Log Pond	1947	380	13	80	Low	1
Rock Quarry Canyon Dam	1948	439	27	1,249	Low	21
Fitzgerald Reservoir	1941	104	25	42	Low	4
Easterday Reservoir	1948	1,044	14	350	Low	8
Mortimer Canyon Dam	1951	212	30	900	Low	8
Guano Canyon Dam (Harney)	1954	580	19	1,249	Low	29
Mosley Reservoir	1950	180	20	19	Low	0
Chapman Upper	1948	223	15	95	Low	3
Lofton Dam	1948	387	60	1,800	Low	23
Dickson Reservoir	1949	85	45	254	Low	2
Willards Pool	1949	388	39	1,463	Low	2
Wilson Lake Dam (Klamath)	1966	520	15	300	Low	1
Kern Brothers Dam (Harney)	1949	2,700	51	1,350	Low	14
Stallard Dam	1950	193	35	718	Low	7
Hult Pond Dam	1950	380	·	4,982	High	12
Withers Dam	1911	46	20	48	Low	0
Three Mile Flat Reservoir	1964	950	25	928	Low	4
Sugarloaf Reservoir	1950	260	27	320	Low	0
Vane Ranch Reservoir	1950	56	32	266	Low	0
Ketchum	1964	120	35	66	Low	0
Pine Creek Dam (Crook)	1950	67	35	650	Low	5
Mcfall, John Reservoir	1950	80	21	420	Low	4
N. Fk. Indian Creek Reservoir	1951	580	51	1,800	Low	19
Murphy Dam	1950	1,203	60	760	Low	1
Flynn Reservoir	1949	252	16	92	Low	6
Laird Reservoir	1950	67	21	265	Low	5
Sun Studs Log Pond	1950	80	16	60	Significant	0
Vaughn Log Pond	1951	132	12	2,500	Significant	11
Pony Creek - Upper	2001	6,245	77	1,700	High	3
Johnson Log Sorting Pond	1951	491	11	0	Low	0
Little River Log Pond	1950	253	17	0	Low	0
Gardener Reservoir	1952	124	65	266	Significant	0
Obenchain Reservoir	1958	861	26	362	Low	5
Logan Butte Reservoir	1953	330	36	314	Low	8
Miller Reservoir (Wasco)	1952	106	30	0	Low	1
Fish Lake (Baker)	1953	825	22	478	Low	1
Willow Creek	1953	7,500	54	4,634	High	21
Bonnie View Dam	1953	484	38	1,064	Significant	5
Corder Log Pond	1954	56	12	3	Low	0
Kuehne Dam	1952	90	38	79	Significant	1
Evans Reservoir (Wasco)	1953	90	13	320	Low	1
Grizzley Creek Reservoir No. 2	1955	273	10	91	Low	1
Kivett 3	1950	39	26	61	Low	3
Wolf Creek	1974	10,800	125	17,370	High	33
Jones Reservoir	1958	127	21	652	Low	1
Yankee	1951	925	55	1,418	High	7
Fort Creek Reservoir	1953	150	20	824	Low	1
Big Creek #1 (Lower)	1951	200	21	550	High	3
Widman Reservoir	1952	66	30	320	Low	2
Star Creek	1951	110	25	717	Low	2
Chickahominy Reservoir	1951	7,228	36	2,862	Significant	28
Cole And Forrester	1951	122	35	106	Low	2
Hickory Hill Farm	1952	47	29	36	Significant	1
Johnson Creek (Crook)	1951	369	44	696	High	7
Griffin Creek Dam	1953	475	44	824	Significant	14
Piute Reservoir	1953	1,051	40	798	Low	35
Little Willow Creek Reservoir	1954	96	43	425	Low	12
Fox Reservoir	1951	104	25	279	Low	1
Oswego Lake Dam	1921	9,800	32	1,400	Significant	6
Pole Creek	1944	1,525	58	·	High	1
Harpold Reservoir	1909	750	58	300	Low	2
Brewer Reservoir (Jefferson)	1952	1,580	30	385	Significant	23
Kluchman Creek Dam	1951	72	35	611	Low	4
Albertson Reservoir (Lake)	1954	1,430	28	269	Low	4
Faraday Forebay	1907	550	33	5,600	High	665
Walch Dam	1954	1,150	65	691	High	2
Stanley, Charles W. Reservoir	1962	293	41	250	Low	1
Joe Fisher	1953	508	51	669	High	6
Booth Kelly Lumber Pond (Lagoon)	1953	144	10	53	Low	0
Hells Canyon Dam	1968	183,000	320	210,000	High	73,300
Ford Farms Reservoir	1959	60	22	161	Significant	2
Burkhalter #2	1952	67	12	210	Significant	0
Blevin Dam	1954	457	23	770	Low	173
Rock House Reservoir (Malheur)	1956	391	22	930	Low	175
Odell, Ben	1954	254	14	131	Low	7
Fritz Reservoir	1956	164	18	28	Low	7
Oxbow	1961	58,386	204	150,000	High	73,000
Oxbow Fuse Plug	1961	58,386	27	150,000	High	73,000
Buether Upper Reservoir	1955	45	36	904	Low	5
Ettinger Pond	1954	56	16	25	Significant	1
Walton Lake Dam	1955	199	34	·	Significant	1
Dober Reservoir	1954	106	23	70	Significant	1
Winchester	1904	700	17	2,200	High	1,344
Rock Creek Lake (Wheeler)	1954	2,300	45	518	Low	5
Neil Creek Reservoir	1955	81	37	185	Significant	4
Walterville Storage Pond	1951	345	10	1,400	High	·
Smyth S Creek Dam	1955	160	24	1,320	Low	11
Wheaton Creek Reservoir	1948	82	12	80	Low	4
Bump Farm Reservoir	1956	89	38	130	Low	0
Silver Falls Log Pond (Marion)	1956	68	14	40	Low	0
Sutherlin Mill (Fords Pond)	1954	1,040	18	60	Low	0
Wickiup	1948	200,000	100	·	High	482
Wickiup East Dike	1949	200,000	29	5,000	High	482
Wickiup South Dike	1949	200,000	29	5,000	Low	482
Greaser Lake Reservoir	1963	12,000	10	1,440	Low	270
Nelson Reservoir No. 1	1957	80	34	80	Low	0
Crane Prairie	1939	55,330	36	800	High	183
Timber Lake	·	180	46	·	Significant	·
Hatfield (Spaulding)	1955	17	33	245	Low	1
Wilson Reservoir No. 1	1957	68	32	371	Low	2
Barnes Butte	1956	340	28	307	High	4
Oregon End Dam	1955	205	16	452	Low	8
Skou Reservoir	1955	108	20	131	Significant	0
Haystack	1956	5,635	105	·	High	10
Walker (Bryan Creek)	1956	209	35	598	Significant	2
Antelope Dam	1959	973	16	400	Low	10
Shaw Dam And Dikes (Union)	1955	504	48	1,140	Low	2
Thompson (Benton)	1956	362	41	505	Significant	3
Woolfolk Reservoir	1955	480	47	1,862	Significant	1
Dollar Mill Pond	1951	150	10	25	Significant	0
Vandehey Reservoir	1954	69	10	345	Low	1
Drain Plywood Log Pond	1956	136	13	50	Significant	0
Bull Run Lake Dam	1965	10,000	55	1,100	Low	4
Hartwick Reservoir	1956	170	28	114	Low	1
Hammel No. 2	1957	50	20	200	Significant	2
Keene Reservoir	1957	125	20	87	Low	6
Grohs Reservoir	1959	882	14	241	Low	10
Campbell Reservoir	1954	2,350	30	750	Low	3
Mud Flat Reservoir	1917	2,021	16	1,000	Low	43
Fopiano Reservoir	1960	200	36	1,500	Low	14
Allen Creek	1959	1,825	78	750	Low	12
Gehring Reservoir (Towery Dam)	1959	50	30	29	Low	1
Mckenzie Canyon Dam	1959	89	18	80	Significant	0
Powers Log Pond	1955	108	10	0	Significant	0
Development No. 2 Dam	1962	21,000	145	69,000	High	102
Spillway Dam	1962	21,000	180	73,000	High	102
Arntz Dam	1957	290	20	500	Low	6
Paris	1963	120	51	120	High	0
Vaughn Reservoir (Malheur)	1959	825	64	675	Low	13
Blann Meadows Dam	1959	269	29	475	Low	10
Wasco	1958	11,869	45	16,200	High	8
Development No. 1 Dam	1929	26,640	200	21,000	High	75
Smith Lake	1948	580	26	700	Low	3
Reimer, William Reservoir	1958	125	22	117	Low	1
Bumphead Reservoir	1957	1,450	25	988	Low	4
Dallas Lake Reservoir	1959	920	28	100	Low	2
Sutherlin Log Pond	1958	170	11	56	Significant	0
Denley Brothers Dam	1960	120	22	400	Low	1
Palmer Reservoir	1959	316	27	450	Low	2
Parsnip Creek Reservoir	1960	181	25	2,000	Low	4
Camp Creek No.2 (Crook)	1959	606	22	309	Low	6
Keno Reservoir	1959	115	12	200	Low	5
Olive Lake	1907	3,300	39	0	High	4
Fehrenbacker Reservoir 2	1959	350	16	925	Low	80
Little Park Dam	1958	280	31	80	Significant	0
Bryant Mt. Reservoir 2	1962	750	22	190	Low	2
Lester James Reservoir 3	1959	60	14	60	Significant	0
Sproul Reservoir	1962	320	24	380	Low	5
North Fork	1960	257	81	1,650	High	3
Waldo Lake	1960	56	13	335	Significant	1
Trillium Lake	1960	353	19	450	Low	1
East Lakes Creek	1963	132	15	30	Low	1
Fenimore, Clyde Reservoir	1960	62	15	145	Low	0
Andy Hill Reservoir	1961	106	21	45	Low	1
Kilgore Reservoir	1964	305	14	440	Low	3
Mays	1960	457	37	40	High	25
Willow Creek Reservoir (Lake)	1959	56	21	500	Low	5
Woodrat Knob	1960	1,789	90	240	High	1
Siltcoos Lake	1964	15,070	12	10,000	Low	50
Tahkenitch Lake	1964	16,580	10	10,000	Low	34
Lofton Reservoir (Lake)	1962	550	30	120	Low	2
Star Mountain Reservoir	1961	940	66	420	Significant	87
Wahkeena Rearing Reservoir	1961	180	19	151	Low	0
Bull Prairie Reservoir	1961	168	47	1,480	Low	4
Renner Dam	1961	3,270	45	1,100	Low	5
Whistlers Bend	1960	350	33	450	Low	1
Dejong Dam	1961	81	35	75	Low	0
Hawn Creek Reservoir	1961	153	23	1,430	Low	11
Worden Reservoir 2	1962	370	42	510	Low	10
Priday Reservoir	1961	2,400	18	750	Low	34
Hemlock Meadows Dam	1962	1,150	61	180	Low	1
Bibby Dam	1962	154	35	620	Low	7
Cottonwood Meadows	1961	240	25	700	Significant	6
Goodrich Reservoir	1963	603	65	100	Significant	1
Willow Valley Reservoir	1961	2,038	34	4,050	Low	58
Muddy Creek Reservoir	1962	1,363	25	85	Significant	13
Antelope Flat (Crook)	1965	1,793	33	1,090	Low	7
Wade	1963	1,009	82	25	High	·
Upper Tumalo Reservoir	1961	1,100	11	523	Low	2
Crescent Lake	1956	86,050	38	1,500	High	61
Moore-Emory	1962	150	31	33	Low	0
Cob Creek Dam	1962	128	29	500	Low	6
Lorence Lake	1959	82	25	510	Significant	3
Star Lake	1964	290	53	50	Low	1
Marx Reservoir #1	1964	85	27	25	Low	0
Willow Creek 3 (Malheur)	1944	20,400	110	17,000	High	275
Buffalo Lake Dam	1963	234	20	1,000	Low	4
Barnes Bros. Reservoir	1963	63	32	250	Significant	2
Crater Lake	1964	190	31	575	Low	0
Kay Lake	1963	41	33	145	High	0
Lake Creek	1965	1,360	77	1,690	High	8
Pettit Reservoir	1963	223	24	1,030	Significant	2
Merwin Reservoir #2	1968	174	48	3,000	Low	28
Paiute Reservoir	1964	454	21	430	Low	7
Zoglmann Reservoir	1963	2,533	28	600	Low	25
Sams Valley	1956	890	60	500	High	2
Osborne Creek	1964	438	60	1,725	High	3
Smith Reservoir	1970	920	19	1,450	Low	1
Bauer Reservoir	1965	64	15	42	Low	0
Moores Hollow	1964	1,241	35	0	Significant	0
Empire Lake, Lower	1935	192	10	82	Low	1
Balm Creek Reservoir	1963	2,926	65	400	Significant	5
Waller No. 3	1965	510	64	35	Low	1
Calderwood Reservoir	1908	1,477	12	120	Low	8
Dixonville Log Pond	1956	1,163	30	116	Significant	2
Ruckmans Reservoir	1963	76	20	32	Low	0
Squaw Creek Id Reservoir	1965	500	18	43	Low	0
Lippert Reservoir 2 (Upper)	1965	365	30	330	Low	1
Croft	1968	137	43	140	High	1
S-M-S No. 1	1966	52	30	25	Low	0
Fishhawk Lake	1969	982	35	2,500	Significant	19
Grindstone Reservoir	1964	427	34	450	Low	6
Oxbow Dam (Klamath)	1919	309	22	250	Low	1
Vanderzanden Reservoir	1967	84	19	102	Low	12
Agate	1965	4,780	77	3,530	High	10
Marks Lake Dam	1968	52	20	425	Low	14
Campbell, John Reservoir	1965	310	23	600	Low	4
Clemens Reservoir	1967	331	35	300	Low	8
Pierson-Upper	1965	17	31	205	Low	1
Tall Timber Lake	1965	20	28	90	Low	1
Randall Reservoir	1960	725	38	580	Low	10
Bradshaw 2	1966	52	20	30	Significant	0
Pearson Reservoir	1971	45	64	125	Low	0
Kauer Reservoir	1968	116	35	105	Low	1
River Bend No. 2	1967	40	30	268	Low	1
Cottonwood (Drewsey)	1967	3,700	73	1,450	Significant	34
Osburn Reservoir	1967	44	34	115	Low	0
Ferry Creek	1966	167	65	90	High	1
Collins Dam (Wheeler)	1971	255	33	250	Low	4
Simpson Reservoir (Jackson)	1967	73	26	35	Low	0
Graham	1961	180	32	82	Low	1
Kinnan, Frank Reservoir	1968	395	45	1,500	Significant	8
Bradshaw	1966	785	47	900	Significant	3
Plat I	1967	870	28	770	High	9
Rohde Reservoir	1967	74	17	450	Low	3
Pons Lake Reservoir	1968	785	20	225	Low	17
Cyrus Reservoir	1968	113	17	8	Low	1
Weaver Reservoir	1970	55	22	450	Low	0
Mt. Springs Ranch Dam	1969	70	40	730	Significant	2
Bear Creek	1953	700	90	530	High	3
Sester, William H. Reservoir 1	1969	51	32	50	Significant	0
Clear Branch	1969	3,600	110	10,400	High	9
Mainline 1	1969	445	57	611	Significant	6
Jubilee Lake	1967	1,579	50	550	High	4
Bates Reservoir	1949	32	26	144	Low	18
Helms Reservoir	1968	91	25	140	Low	2
Lind Reservoir	1970	112	18	70	Significant	0
Big Miller Lake	1961	134	20	33	Low	0
Officer Reservoir	1970	317	34	230	Low	4
Frog Pond #1	1968	50	22	95	Significant	3
Harrison	1968	234	26	2,489	Significant	0
Unger-Bill Dam	1968	80	39	32	Significant	0
Spada Reservoir #1 (Champoeg)	1968	329	22	1,190	Low	17
Cooper Creek (Sutherlin)	1971	3,900	84	1,100	High	4
Crow Creek	1968	955	113	2,500	High	13
Wallowa Lake	1931	49,257	39	3,420	High	53
Wirth Reservoir	1966	59	36	100	Low	1
Werner (Upper)	1973	60	28	60	Low	0
Hunter Reservoir (Harney)	1968	1,096	40	360	Significant	4
Olalla	1968	3,650	83	355	High	1
Faye Canyon Reservoir	1968	300	13	1,331	Low	10
Mill Creek	1969	250	70	2,000	High	4
Big Creek #2 (Upper)	1970	970	56	2,000	High	3
Duggan	1965	50	23	200	High	0
Beyer Reservoir	1968	220	36	240	Significant	2
Stringer Reservoir	1969	78	26	375	Low	2
Kreder Reservoir	1970	120	22	320	Low	1
Schmidt, Howard Reservoir	1969	29	35	38	Low	0
Pine Hollow	1969	4,750	65	1,060	High	5
Oconnor Puddle	1969	94	12	50	Low	5
Bailey Reservoir (Aka Kalsch)	1968	50	12	248	Low	3
Moon Reservoir	1969	5,650	38	974	Significant	1
Mckay Acres Dam	1968	461	15	410	Low	16
Lillie Walker Irrigation Pond Dam	1969	98	10	0	Low	0
Martin Bros. Flashboard Dam	1973	71	10	97	Low	4
Morrow Brothers (Jefferson)	1970	115	23	700	Low	25
Teasel Creek	1972	53	21	750	Significant	4
Fidel Bros. Irr. Reservoir	1969	100	20	7	Low	0
Updegrave	1957	172	30	90	High	1
Rogers - Joseph Reservoir	1971	36	31	100	Significant	0
Mainline 3	1971	168	37	67	Significant	1
P.M. Delaubenfelds Dam	1970	89	30	144	Low	1
Walters, Glenn #1 - Large	1969	132	25	306	Significant	1
Wageman	1971	50	40	175	High	0
Deardorff, Betty Jane	1971	1,030	65	1,170	Significant	1
South Fork Reservoir	1968	536	28	418	Significant	14
Lostine Reservoir	1970	540	14	29	Low	0
Mompano	1971	780	39	1,400	High	13
Penland Lake Reservoir	1971	590	29	40	Low	2
Peterson Creek Reservoir	1954	110	25	387	Low	10
Case Creek Dam 1	1971	255	23	581	Low	5
Baker, Er	1970	225	56	115	High	1
Panther Creek Reservoir	1971	75	49	1,180	Significant	3
Sarvis	1970	36	36	766	Significant	2
Crowe Reservoir #2 (Polk)	1971	80	24	340	Low	1
Farnam Creek Reservoir	1970	132	25	300	Significant	1
Clark Lake	1971	89	15	67	Low	9
Mcmullen Creek	1961	1,675	45	751	High	14
Mcguire	2003	9,790	111	820	High	3
Fisher, James O Reservoir	1971	36	34	67	Low	4
Oberg Reservoir	1970	60	35	125	Low	0
Stinking Water Creek	1967	2,405	71	1,000	Significant	30
Hershiser Reservoir	1972	33	42	120	Low	0
Funrue	1972	85	29	200	Significant	1
Mission Creek Dam And Reservoir Company	1972	1,150	25	750	Low	6
Watson Reservoir	1970	2,102	32	1,250	Low	22
Langdon Lake Dam	1930	253	12	20	Low	1
Lester James #1	1953	106	22	100	Significant	0
Mercer	1961	1,550	79	8,700	High	18
Barney	1998	20,000	122	7,780	High	8
Iverson Reservoir (Douglas)	1960	51	32	160	Low	1
Whispering Winds	1973	60	25	1,400	Low	4
Hoover Pond 3	1962	109	14	350	Significant	0
Hoover Pond 2	1962	68	26	180	Significant	0
Hoover Pond 1	1962	139	17	460	Significant	0
Alder Creek	1973	640	55	575	Low	11
Spring Lake Estates	1972	104	34	50	Significant	1
Pitt Lake Dam	1920	122	11	118	Low	1
Cottonwood	1962	8,800	60	2,800	High	30
Delintment Lake	1953	415	21	·	Low	2
Squaw Lake Dam	1957	·	34	·	Significant	·
Carmen Diversion	1963	260	17	6,000	Low	114
Trail Bridge	1963	2,263	90	29,000	High	184
Trail Bridge Saddle Dike	1963	2,263	35	·	High	184
Smith	1963	15,000	215	13,920	High	19
Clearwater No 1 Forebay	1953	170	17	·	Low	·
Lake Roslyn	1959	2,011	45	800	Significant	5
Frog Lake Dam A	1955	460	50	1,500	Significant	131
Frog Lake Dam B	1955	460	70	1,500	Significant	131
Timothy Lake	1956	66,000	100	16,000	High	54
Harriet Lake	1923	152	68	11,200	Low	131
Pelton Regulating	1958	3,500	40	30,000	High	7,636
Pelton	1957	31,800	204	23,500	High	7,800
Round Butte	1964	535,000	440	28,000	High	7,514
North Fork	1958	18,630	207	150,000	High	671
Faraday Diversion	1965	1,200	55	177,000	Significant	671
River Mill	1911	2,300	85	150,000	High	671
Leaburg	1930	345	20	67,000	Low	1,038
Leaburg Canal And Forebay	1930	459	15	2,850	High	1,050
Toketee	1949	880	58	28,000	High	258
Soda Springs	1952	412	125	17,500	High	438
Lemolo No 1	1955	11,079	120	16,300	High	175
Link River Diversion	1921	735,000	22	8,500	High	3,800
Keno	1967	18,500	41	25,000	Low	3,920
John C Boyle	1958	3,380	68	31,500	High	4,080
North Fork Diversion Dam	1928	250	45	27,325	High	312
Slide Creek	1951	43	30	15,000	Low	340
Fish Creek Diversion Dam	1990	71	14	13,500	Significant	65
Clearwater No 2 Forebay	1953	71	13	·	High	·
Lemolo No 2 Forebay	1956	231	30	·	Low	·
Stump Lake Dam	1953	152	17	9,500	Low	42
North Canal Diversion	1906	30	33	10,000	High	1,900
Duncan Reservoir - Dam	1973	284	·	3,017	Low	·
Big Rock Res. Dam	1969	41	·	3,252	Low	·
Mud Lake	1962	1,813	·	1,236	Low	·
Morrison Dam	1911	115	38	919	Low	3
S. Fork Squaw Creek Dam	1970	33	·	381	Low	·
Round Valley	1956	1,380	·	1,137	Low	·
Upper Midway	1959	286	·	6,903	Low	·
Dog Hollow	1959	444	·	488	Low	·
Krumbo Dam	1957	2,224	35	966	Low	33
Morgan Brothers Dam	1962	500	25	393	Low	1
Mason	1967	78,500	167	1,210	High	165
Bully Creek	1962	30,000	121	10,000	High	550
Arthur R. Bowman	1960	150,216	245	8,120	High	2,635
Howard Prairie	1957	62,100	100	1,710	High	28
Emigrant	1960	39,000	204	·	High	62
Emigrant Coaxial Dike	1960	39,000	22	·	High	62
Emigrant Highway Dike	1960	39,000	90	·	High	62
Emigrant Spillway Dike	1960	39,000	14	·	Low	62
Owyhee	1931	1,120,000	417	40,000	High	10,706
Mckay	1926	67,800	165	·	High	186
Gerber	1925	94,270	88	900	High	220
Anderson-Rose Diversion	1921	450	16	10,000	Low	·
Lost River Diversion	1912	2,300	41	13,000	Low	·
Malone Diversion	1923	500	32	4,000	Low	350
Three Mile Falls Diversion	1913	300	28	38,000	Low	1,280
Agency Valley	1934	59,212	110	12,100	High	444
Cold Springs	1907	50,000	100	6,600	High	188
Hyatt	1921	16,200	47	·	High	12
Keene Creek	1958	340	67	·	High	20
Thief Valley	1931	17,600	66	34,000	High	914
Unity	1937	24,970	82	13,900	High	309
Bend Hydro (Mirrorpond)	1905	100	16	3,000	Significant	1,900
Willamette Falls	1923	17,000	20	400,000	Significant	10,000
Willamette Falls Locks	1873	17,000	0	0	Low	0
Walterville Forebay	1911	275	24	3,380	High	1,085
Indian Lake	1969	1,214	·	·	High	·
Big Swamp Reservoir	1908	350	10	33	Low	0
Mahon Reservoir	1904	3,456	25	90	Low	30
Altnow Reservoir	1908	122	20	184	Low	1
Elms Reservoir	1908	190	14	54	Low	2
Bennett Dam	1908	206	22	45	Low	2
Spaulding-Vaughn Reservoir	1908	106	10	306	Low	2
Killamacue Reservoir	1908	312	11	660	Significant	0
Twin Lake-Upper	1908	150	10	51	Low	1
Twin Lake-Lower	1908	75	22	115	Low	1
Beaver Creek (Union)	1915	510	33	167	Low	14
William L. Jess Dam	1976	465,000	342	158,000	High	674
William L. Jess Dam - Lost Creek Lake Fish Structure	1976	0	28	14,000	Significant	0
Franzen	1952	300	31	375	High	9
Bear Creek 3	1973	300	55	2,750	High	5
Marvin Fast Dam	1979	330	16	2,037	Low	25
Mcnary Lock And Dam	1954	1,350,000	0	2,200,000	High	214,000
Mcnary Lock And Dam - Kennewick Levee 5d	1952	0	30	0	High	0
Mcnary Lock And Dam - Kennewick Levee 6b	1952	·	30	·	High	·
Mcnary Lock And Dam - Kennewick Levee 7	1952	·	·	·	High	·
Mcnary Lock And Dam - Kennewick Levees 15c, 15d, 15e	1952	·	30	·	High	·
Mcnary Lock And Dam - Kennewick Levee 17b	1952	·	30	·	High	·
Mcnary Lock And Dam - Kennewick Levee 20	1952	·	30	·	High	·
Mcnary Lock And Dam - Pasco Levee 12-1	1952	0	30	0	High	0
Mcnary Lock And Dam - Pasco Levee 12-2	1952	·	30	·	High	·
Mcnary Lock And Dam - Pasco Levee 17a	1952	·	30	·	High	·
Mcnary Lock And Dam - Richland Levee 2a	1952	0	30	0	High	0
Mcnary Lock And Dam - Richland Levee 2c	1952	·	30	·	High	·
Mcnary Lock And Dam - Richland Levee 4a	1952	·	30	·	High	·
Kennel Reservoir	1977	122	27	124	Significant	0
Walker Reservoir 2	1977	152	10	29	Low	0
Carty Reservoir	1976	129,000	80	22,000	Significant	65
Fredericks Pond	1974	28	26	318	Significant	0
Koinenia Lake Dam	1976	87	40	188	Significant	3
Silver Creek	1975	1,300	65	16,000	High	46
Rock Creek Dam	1939	834	·	690	High	29
Applegate Dam	1980	82,200	242	93,800	High	223
Parsnip Creek Diversion	1980	475	38	250	Significant	10
Albertson S Reservoir (Malheur) (Lagoon)	1976	105	19	185	Low	0
Sherlock Gulch	1974	60	·	3,987	Low	·
Sevan Lake	1977	789	40	1,116	Low	20
White Rock Reservoir	1974	940	31	164	Low	4
Walchli Reservoir	1980	182	30	500	Low	0
Randall Reservoir #3	1980	420	40	1,130	Low	11
Buck Butte Reservoir	1976	114	25	188	Low	4
Cherry Creek	1980	86	43	553	Low	14
Medford Forest Nursery	1978	103	15	29	Low	16
Owen	1975	42	31	526	Low	1
Radio Springs	1974	105	·	2,799	Low	·
Oxbow Ranch Dam (Grant)	1980	61	40	226	Low	3
Berry Creek	1980	11,250	140	12,000	High	17
Layton #2 Reservoir	1978	169	20	1,120	Low	90
Petes Slough	1980	1,040	14	849	Low	0
Porter Cc Reservoir (Clackamas)	1977	57	21	12	Low	0
Aamodt Flashboard Dam	1977	90	10	0	Low	59
Elmer Stoplog Dam (Union)	1975	298	10	291	Low	0
Fleet Reservoir 2	1977	78	12	10	Low	0
Elmer Reservoir 3 (Union)	1977	58	14	54	Low	0
Elgin Mill Trmt. Lagoon #1	1976	131	14	0	Low	0
Morgan Lake	1976	780	23	8	High	0
Pyles Canyon 2	1977	221	39	164	Low	6
Howell	1980	56	15	2	Low	1
Dierickx	1980	50	20	437	Significant	0
Maple Headquarters Reservoir	1986	72	19	80	Significant	0
Painted Hills Reservoir	1979	800	42	2,884	Low	0
Olson Flashboard Dam	1975	93	14	5,000	Significant	36
Turner Creek Reservoir	1978	30	26	136	Low	1
Blue Heron Reservoir	1979	82	12	0	Low	0
Wallace Ingebrand	1979	76	11	506	Low	40
Chevally Reservoir	1933	406	22	0	Low	50
Hickey Reservoir	1967	630	35	130	Low	3
Portland #1 (Mt.Tabor)	1894	37	30	21,000	High	4
Portland #3 (Washington Park)	1894	50	53	300	High	0
Portland #5 (Mt.Tabor)	1911	150	55	26	High	0
Portland #6 (Mt.Tabor)	1911	230	28	30	High	0
Freeman Reservoir #3	1979	74	18	81	Low	0
Isakson Reservoir	1972	29	27	54	Low	0
Promise Reservoir	1980	160	35	77	Low	1
Mc Corral	1972	70	·	275	Low	·
Jimmy Creek Reservoir	1981	675	42	1,858	Significant	40
Lancefield Reservoir	1967	72	10	309	Low	22
Turnbull Peak Reservoir	1983	754	13	30	Low	53
Smith-Bybee Lakes	1981	4,100	14	81	Low	6
Yoncalla Reservoir	1983	112	16	28	Low	0
Canyonville Reservoir	1983	300	58	3,783	Significant	7
Redmond Sewage Pond (Lagoon)	1983	286	19	50	Low	0
Scoggins	1974	59,910	151	14,030	High	41
Salmon Creek Reservoir	1984	255	41	2,044	Significant	5
Tribbett Reservoir	1969	31	27	35	Low	0
Pilcher Creek	1984	5,910	110	514	High	3
Bear Creek (Crook)	1984	610	63	554	Significant	19
Deadman Creek Reservoir	1984	386	55	51	Low	4
Hillsboro West (Lagoon)	1984	120	12	0	Low	0
Center	1981	153	·	170	Low	3
Happy Valley	1938	360	·	225	High	13
Shipler Reservoir	1984	250	23	1,640	Low	11
Currant Creek	1984	1,020	82	2,000	High	36
Younglife Waste A (Lower)	1986	59	41	163	High	0
Snyder Reservoir	1984	280	25	501	Low	1
Walters, Glenn #5	1984	102	29	152	Significant	0
Boardman Sewage Lagoons	1984	115	12	0	Low	0
Taylor Reservoir	1985	300	33	26	Low	6
Bounds Reservoir	1984	93	26	730	Significant	2
South Cottonwood Creek Reservoir	1961	18	·	131	Low	·
Mitchell - Stanley Reservoir	1960	42	25	260	Low	1
Briscoe Reservoir	1966	36	25	43	Low	0
Rose Reservoir	1974	550	40	303	Significant	1
Sandy Farms No. 1-A	1977	49	33	150	Significant	0
Anderson - Roy Reservoir	1970	28	25	950	Low	6
Zielinski Farm Reservoir	1974	41	26	49	Significant	0
Crates Point Reservoir	1977	491	22	220	Low	2
North Fork Diversion Dam	1965	309	50	275	Significant	508
South Fork Diversion Dam	1932	5	25	·	Low	79
Layton Reservoir 1	1977	93	25	898	Low	10
Suttle	1961	17,700	6	0	Significant	22
Gillworth Reservoir	1980	178	29	345	Significant	9
Sowell Dam	1960	47	26	52	Significant	0
Hyde Lake Dam	1973	2,870	33	100	Low	29
Lockett Reservoir	1917	44	25	190	Low	2
Olson Reservoir (Mark)	1988	46	25	50	Significant	0
Binford Dam	1958	30	25	400	Significant	1
Belchers Dam	1965	30	28	1,120	Low	1
Corcoran	1949	1,630	39	518	Significant	4
Lucky	1966	220	·	7,929	Low	·
Heater Reservoir #2	1981	43	28	82	Significant	0
Prairie City Lagoon (Cell 3)	1981	54	18	0	Low	0
Prairie City Lagoon (Cell 2)	1981	56	16	0	Low	0
Marx Brothers Reservoir	1977	176	32	290	Low	0
Deraeve Reservoir #1 (Lower)	1978	325	18	1,459	Significant	1
Elmer Reservoir 1 (Union)	1966	123	16	0	Low	0
Elmer Reservoir 2 (Union)	1966	91	16	0	Low	0
Fleets Loop	1967	246	18	40	Low	1
Dundee Sewer Project (Lagoon)	1979	47	37	186	Low	0
Thomas-Cavender	1985	175	32	40	Low	167
Justesen Reservoir #1	1985	148	21	544	Low	3
Santa Clara	1976	64	17	220	High	0
East Basin, Cell 1 And 2	1954	560	16	70	Low	0
Wampler-Werth	1983	90	20	5,149	Significant	4
Willow Creek Dam	1982	4,326	159	91,700	High	96
Vandervelde Lagoon	1985	67	10	0	Low	0
Galesville	1985	41,890	163	45,700	High	73
Dry Creek (Catlow Valley)	1960	178	12	0	Low	0
Gilchrist Log Pond	1937	51	14	0	Low	0
American Can Dams (Lagoon)	1977	46	14	0	Low	0
Amalgamated Sugar	1984	117	11	0	Low	0
Harris Reservoir	1986	59	26	280	Low	1
Big	1966	674	10	31	Low	·
Steer Canyon Dam	1954	67	·	3,724	Low	6
Big Foot Dam	1953	160	·	657	Low	5
Riley Horn Dam	1961	164	·	286	Low	·
Mud Creek #1 Reservoir	1957	103	·	544	Low	2
Copeland Reservoir	1917	265	12	126	Low	31
Iseli Nursery 4	1989	103	20	336	Low	0
Roy Farm	1989	100	14	193	Low	0
Buche (Clackamas)	1989	33	33	242	High	1
Haberlach Dam	1961	12	22	100	Significant	1
Jesse Enlargement	1998	177	32	0	Significant	0
Alfred Lewis	·	48	20	131	Low	0
New England Bolt And Thread Reservoir	·	270	15	0	Low	0
John F Wood	1971	13	28	81	Low	1
Davison, Dale	1971	32	23	4	Low	0
Carl Schmadeke	1971	49	18	11	Low	0
Abe Ediger	1957	48	18	276	Low	1
Beaver Pond Dam (Wheeler)	1988	120	31	10	Low	0
Berger Lake	1953	45	14	17	Significant	2
Botens Reservoir	·	54	17	0	Low	0
Carroll Reservoir	1955	45	25	140	Low	1
Cedar Grove Lake	·	14	11	0	Significant	0
Charley Horse Reservoir	1966	48	26	1,050	Low	1
Rainier City Reservoir	1954	14	25	0	Significant	0
Seaside City	1996	170	45	68	High	1
Cook Reservoir (Wash)	1972	14	28	73	Significant	1
Coquille Plywood Mill Pond	1957	180	11	0	Low	0
Crows Nest Reservoir	2004	2	·	873	Low	3
Deraeve Reservoir #2	1987	66	22	240	Low	1
Heart Lake Or Deep Lake	1898	185	10	40	Low	1
Devils Lake (Klamath)	1956	1,080	16	753	Low	8
Diack Reservoir	1955	20	26	191	Low	0
Drain Sewage Lagoon	1986	40	17	15	Significant	0
Drescher Reservoir	1958	21	21	254	Significant	2
Emmel Ranch Dam	1982	13	27	60	Low	1
Eola Hills Reservoir	1985	37	19	73	Significant	0
Fourth Creek Reservoir	1930	21	12	70	Significant	1
Frazier Seeding Reservoir (Blm)	·	22	25	0	Low	0
Gustav Krause	·	53	20	183	Low	0
Haskell Reservoir	1912	89	15	150	Low	4
Hawks Nest Reservoir	1961	32	25	0	Low	0
Hay Lake	1905	200	10	7	Low	24
Hayhurst Road	1958	70	30	236	High	0
Heater Dam	1959	32	25	25	Significant	0
Russell Hill	1963	44	19	23	Low	1
Hoefer-Pierson Reservoir	1970	16	23	652	Significant	1
Buether Lower Reservoir	1966	46	33	0	Low	6
Kinzua	1955	33	27	242	Low	4
Cynthia Lord 1	1964	0	0	0	Significant	0
Lake Camp Baldwin	1964	49	23	0	Low	1
Lester James Reservoir 2	1958	29	15	50	Significant	0
Little Hyatt Dam	·	59	·	1,850	Low	·
Mccormick Reservoir	1954	38	24	200	Significant	1
Mc Nulty Dam	2004	67	·	2,090	Low	9
Miller Dam	1990	19	32	120	Low	1
Mt. Hood Community College Dam	1968	25	58	1,340	Significant	1
Mulkey, Gryland Reservoir	1981	50	10	154	Low	0
Dragonfly Reservoir	2006	38	28	0	Low	0
Ruddenklau Dam	2006	84	18	0	Low	1
Noble Reservoir 1	1961	145	12	234	Low	5
Olson, Phillip 2-B	1977	50	18	61	Low	0
Opal Springs	1985	41	21	10,000	Low	3,800
Oscar Dam	1975	67	·	132	Low	3
Peterson, Floyd	1977	19	27	265	Significant	1
Peyralans Reservoir	·	12	23	0	Significant	0
O.E.Loe Dam 2 Porter Place	·	21	25	218	Low	0
Welch Reservoir (Widman #2)	1890	26	12	60	Low	1
Ritchey Farm Reservoir	1985	200	12	6	Low	1
Rickman Reservoir	·	34	15	0	Low	0
Rimrock Lake	1905	200	10	75	Low	5
Rincon Ranch Reservoir	·	250	20	0	Low	0
Rivers End Dam	1997	1,839	23	0	Low	590
Round Barn Reservoir	1943	7,500	12	630	Low	90
Beaverdam Pond	1902	50	10	180	Low	5
Salmonberry Reservoir	1960	61	35	330	Significant	0
Robert Scharf 2	1980	36	16	84	Low	1
Schwartz Reservoir	1958	20	20	0	Significant	0
Shaffer Reservoir	1987	13	15	160	Significant	1
Sheep Lake	·	50	10	·	Low	·
Sherman Stock Reservoir #1	1952	36	28	288	Low	0
Sherwood Creek Reservoir	1965	38	27	125	Low	9
Macedo Dairy Lagoon	1998	33	17	170	Low	1
Spada Farms #2 (Ryan)	·	139	26	0	Low	0
Metropolitan Sludge Ponds (Lagoon)	1987	160	15	0	Low	0
Stewart Reservoir (Polk)	·	70	21	0	Low	0
Stinking Water Reservoir	·	70	10	0	Low	0
Conservative Baptist Association	1973	27	23	59	High	0
Tualatin Park	1970	28	22	111	Significant	1
Twin Springs Dam	2004	55	·	598	Low	2
Schaefer, Ray Reservoir	1965	18	25	68	Low	0
Norman Stadeli	1969	47	23	192	Low	1
Day Reservoir	1971	12	26	48	Significant	0
Yokom Reservoir	1947	45	25	1,224	Low	15
Hicks Canyon Dam	1979	17	·	6,069	Low	2
Ritter (Large)	1903	293	30	942	Low	16
Mud Creek Dam	1961	126	·	76	Low	10
Fish Creek Forebay	1951	110	14	·	High	·
Sparks	·	2,000	9	·	Low	36
Spalding Dam	1990	25	37	69	Low	0
Fairview Lake	1919	235	18	40	Low	7
Weston Eda Wwt Lagoon	1986	123	19	0	Low	0
Freezeout Reservoir	1950	185	24	410	Low	7
Lacroute	1991	50	19	15	Low	0
Midway Nursery	1992	55	31	0	Low	1
Fred Creek Lake Dam	1906	43	22	0	Low	2
Milton-Freewater Lagoon N-3	1988	161	12	0	Low	0
Meridian Reservoir	1994	95	38	0	Low	0
Katz Farm	1994	675	17	0	Significant	1
Gardiner	·	90	25	0	Significant	1
Hendrickson	1991	25	25	0	Low	0
Moss Flat	·	993	11	0	Low	0
Rickreall Dairy Lagoon	1989	158	12	0	Low	0
Lakewood Estates	·	78	30	0	Low	0
Twigg Reservoir	1957	65	16	0	Low	0
Love Reservoir (Malheur)	1907	2,560	44	0	Significant	0
Castro Reservoir	1982	69	·	5,295	Low	·
Clover Creek Reservoir (Baker)	1989	68	30	0	Low	0
Van Conklin Dam #5	1995	127	26	0	Low	0
Jaca Dam	·	3,400	34	0	Low	78
Koning "E" Reservoir	1995	90	24	0	Significant	0
Koning "F" Reservoir	1995	99	23	0	Low	0
Blaine #1	1993	70	15	0	Low	0
Port Of Morrow Wwt Lagoon	1994	436	20	0	Low	0
Dry Creek Diversion Dam	1974	50	13	0	Low	33
Iverson (Clackamas)	1994	186	15	0	Low	0
Dowell Reservoir	1989	200	17	0	Low	4
Hope Reservoir	·	715	19	0	Low	29
Camp Creek #2 (Curry)	1995	136	28	0	Low	0
Maple Grove	1995	210	38	0	Low	0
Gillen Reservoir	·	90	26	0	Low	11
Black Snag Reservoir	1998	273	38	0	Low	8
Bullard Creek F.R.S. ( Lake)	·	50	35	0	High	4
Kraemer Farms Dam	1998	125	16	0	Low	7
Jackson Farms Dam	1998	90	60	0	Significant	0
Baker West Nursery Dam	1998	17	26	0	Low	0
Sunriver Effluent Lagoon	1998	202	30	·	High	·
Lonesome Lake	·	186	35	0	High	0
Kelly Creek Regional Detention Pond	·	67	20	0	Low	0
Ennis Creek Dam	·	27	27	0	Low	0
Konyn Dairy Lagoon	·	50	10	0	Low	0
Westbrook Dam	·	141	25	0	Low	0
Fuston Ranch Dam	·	250	30	0	Significant	0
Poison Creek Dam	1999	112	·	7,923	Low	6
Simplot Hermiston #2 (Lagoon)	2002	353	32	0	Low	0
Spada Nursery Runoff #2	·	20	25	0	Low	0
Spring Lake	·	31	26	0	High	0
Muhs Quarry Dam	·	203	40	0	Significant	0
Gildersleeve	·	50	18	0	Low	0
Oregon Pride Nursery Dam	·	59	39	0	Low	0
Duck Pond Dam	2001	95	35	0	Low	0
Riverbend Landfill Lagoon	·	63	27	0	Low	0
Multnomanh Channel Dam #2	·	240	12	0	Low	0
Van Conklin Dam #4	1999	81	18	0	Low	0
Van Conklin Dam #6	2004	197	50	0	Low	0
Hochstein Dam #3	·	65	45	0	Low	0
Coos Ctry Club 15th Hole Dam	·	27	25	0	Low	0
Tualatin Refuge	·	579	14	0	Low	0
Boggy Lake Dam	1997	50	23	0	Low	0
Cackler Marsh Dam	1995	277	11	1,092	Low	5
Dusky Marsh Dam	1998	148	10	56	Low	8
Desert Creek Dam	·	318	46	0	Low	0
Clausen Dam	1995	64	15	0	Low	0
Momtazi - Reservoir #2	2000	81	39	0	Low	0
Jacobs Reservoir Dam	1938	294	15	1,600	Low	31
Taverner Marsh Dam	1998	87	9	227	Low	3
Willow Reservoir	·	81	21	·	Low	1
Simplot Waste Lagoon #1	·	535	46	0	Significant	0
Meacham Lake Dam	·	160	14	0	Significant	8
Woodburn Nursery	·	40	33	0	Low	0
Vandecoevering	·	87	15	0	Low	0
Ditch Creek Reservoir	·	90	26	0	Low	0
Stoller Road Dam	2004	30	25	0	Low	0
Patsys Pond	·	31	26	0	Low	0
Turner Dam	·	110	19	·	Low	·
Iott Dam	·	59	20	0	Low	0
Amity Hills Dam	·	125	32	0	Significant	0
Blaine Dam #2	·	258	27	0	Low	0
Shady Creek	·	490	32	0	Low	0
Skookum Pond Dam	1972	80	20	·	Low	0
Arock Diversion Dam	·	222	20	0	Low	0
Carlton Hills Pond G	2008	73	24	0	Low	0
Davis Lake Dam	·	55	23	0	Low	0
Hidden Lake (Sluice Can.)	·	27	36	·	Low	·
Mallories Dairy Lagoon #2	·	84	22	·	Low	·
Stoney Mountain	·	184	77	·	Low	·
Johan Vineyard Reservoir H	·	65	35	0	Low	0
Creekside Development Dam No. 1	·	0	·	·	High	·
Creekside Development Dam No. 3	2007	0	·	·	High	·
Windhurst	·	470	43	0	Significant	0
Crown Zellerbach (Lagoon)	·	276	15	·	Low	·
Wastewater Lagoon #4	·	324	15	0	Low	0
4-B Farms	·	147	17	0	Low	0
Delaubenfels	1970	84	31	258	Low	1
Metolius (Lagoon)	·	81	13	·	Low	·
Madras Wwt Lagoon	·	20	25	·	Low	·
City Of Mt. Angel Lagoon	·	267	11	0	Low	0
Shaniko Ranch	·	32	44	0	Low	0
Whitmore	·	500	24	0	Low	0
Rock Creek Hatchery	·	1,500	14	0	Low	0
Dejong, The Reservoir	1961	72	35	25	Low	0
Taft Miller Homestead	·	122	12	0	Low	0
Mallories Lagoon #1	·	92	13	0	Low	0
Ra Murphy Dam	·	45	28	·	Low	·
Micke	·	75	20	·	Significant	·
Stoller Dam	·	55	13	·	Low	·
John Vanden Brink Dairy	·	50	10	·	Low	·
Green Spot	·	58	16	·	Low	·
Bradetich Reservoir	·	84	11	0	Low	0
Younglife Waste B (Middle)	·	25	15	0	High	0
Younglife Waste C (Upper)	·	25	15	0	High	0
Six Shooter Ranch	·	60	22	0	Low	0
Eagle Crest	1920	23	16	212	Low	1
Guano Slough (Blm)	1934	300	14	2,900	Low	1
Willow Butte	2004	1	·	816	Low	1
Remembrance Lake	·	76	19	0	Low	0
Twin Springs Dam	1982	41	·	3,235	Low	·
Wineland	·	166	10	0	Low	0
Moffitti Marsh Dam	1995	48	10	1,694	Low	1
Parvipes Marsh Dam	1995	42	10	974	Low	2
Willow-Skull Dam	1970	75	·	1,903	Low	4
Paul Chobin Dam	·	0	16	0	Significant	0
Lebanon Dam	1925	81	8	·	Low	640
Canal Intake	1924	81	20	·	Significant	·
Yamhill Vista Dam #5	·	·	27	·	Significant	·
Elgin Mill Trmt. Lagoon #2	2017	82	36	·	Significant	·
Sand Dunes Wastewater Lagoon Dam	·	1,109	35	·	Significant	·
Jensen (Yamhill Farm)	2017	90	24	·	Significant	·
Sullivan Pond 3	2009	65	30	·	Significant	·
Fern Creek	2019	45	21	·	Significant	·
Sparks	2002	35	19	·	Significant	·
Three Creeks Natural Area	·	57	14	·	Significant	·
Long	2003	120	30	·	Low	·
Dog River North	·	48	32	·	Low	·
Walls Lake Dam	2004	773	·	3,015	Low	3

Reservoir FAQ

About Oregon dams & reservoirs

Where does the Oregon dam data come from?

The U.S. Army Corps of Engineers National Inventory of Dams (NID) plus state water-resource agencies. Snoflo joins these public records with live USGS streamgauge readings downstream where available. The NID is the canonical federal dam registry.

What does Hazard Potential mean?

USACE classifies every dam by what would happen if it failed: Low (no loss of life expected, minimal economic damage), Significant (no loss of life but economic, environmental, or lifeline damage), High (loss of life expected). It's a downstream-consequence rating, not a likelihood of failure.

What is Normal Storage in acre-feet?

The volume of water the reservoir holds at its normal operating level, measured in acre-feet. One acre-foot is about 325,851 gallons or 1,233 cubic meters — the amount needed to cover one acre to a depth of one foot.

Why are some Oregon dams missing storage or height data?

USACE NID records can have gaps for small or older dams that pre-date federal reporting requirements. Snoflo surfaces whatever the canonical record contains. If a dam you care about has incomplete data, contact the operating agency or USACE for updates.

Can I see live water levels?

Yes — tap any dam name to open its detail page, which pulls live storage data from USGS streamgauges or operating-agency feeds where available. Historical levels and seasonal averages are also shown.

Why does Oregon have so many dams?

The U.S. has over 90,000 dams — most built between 1930 and 1980 during the federal water-development era. Oregon's count reflects a combination of agricultural irrigation needs, flood control, hydropower, and recreation. The "Built by decade" chart above shows the timeline.