List of dam removals in California

The 2011 breaching of the Dream Lake Dam in Lassen Volcanic National Park.

This is a list of dams in California that have been removed as physical impediments to free-flowing rivers or streams.

Completed removals

Dam [1]	Height	Year removed	Location	Watercourse	Watershed	Notes
Roy's Dam		2020		San Geronimo Creek	Tomales Bay	Farming stock pond owned by a private golf course.
Rogers Dam	40 ft (12 m)	1983	Point Reyes Station 38°02′49″N122°47′13″W / 38.0469°N 122.787°W / 38.0469; -122.787 (Rogers Dam)	Tributary to Olema Creek
North Debris Dam	20 ft (6.1 m)	2002		Tributary to Los Angeles River	Los Angeles River
Trancas Debris Dam	15 ft (4.6 m)	2002		Tributary to Trancas Creek	Trancas Creek
HJFD1	2.5 ft (0.76 m)	2018	Orange County 33°40′45″N117°31′02″W / 33.6793°N 117.5172°W / 33.6793; -117.5172 (HJFD1)	Holy Jim Creek	San Juan Creek	The Trabuco District Dam Removal Project is an initiative of the Cleveland National Forest to remove over 80 dams on four streams. The "fish check dams" were originally built to create pools for a stocked rainbow trout fishery and to store water for conservation and fire suppression. The removals are intended to improve passage of fish and other aquatic species. [2] [3]
HJFD2	4 ft (1.2 m)	2018	Orange County 33°40′50″N117°31′02″W / 33.6805°N 117.5173°W / 33.6805; -117.5173 (HJFD2)
HJFD3	3 ft (0.91 m)	2019	Orange County 33°40′58″N117°30′57″W / 33.6827°N 117.5159°W / 33.6827; -117.5159 (HJFD3)
HJFD4	2 ft (0.61 m)	2019	Orange County 33°40′58″N117°30′57″W / 33.6829°N 117.5159°W / 33.6829; -117.5159 (HJFD4)
HJFD5	5 ft (1.5 m)	2019	Orange County 33°40′59″N117°30′57″W / 33.683°N 117.5159°W / 33.683; -117.5159 (HJFD5)
HJFD6	2.3 ft (0.70 m)	2014	Orange County 33°41′00″N117°30′58″W / 33.6833°N 117.516°W / 33.6833; -117.516 (HJFD6)
HJFD7	2.5 ft (0.76 m)	2014	Orange County 33°41′00″N117°30′58″W / 33.6833°N 117.516°W / 33.6833; -117.516 (HJFD7)
HJFD8	5 ft (1.5 m)	2014	Orange County 33°41′01″N117°30′58″W / 33.6835°N 117.516°W / 33.6835; -117.516 (HJFD8)
HJFD9	2.3 ft (0.70 m)	2014	Orange County 33°41′01″N117°30′58″W / 33.6837°N 117.516°W / 33.6837; -117.516 (HJFD9)
HJFD10	1.5 ft (0.46 m)	2014	Orange County 33°41′01″N117°30′58″W / 33.6837°N 117.516°W / 33.6837; -117.516 (HJFD10)
HJFD11	1 ft (0.30 m)	2018	Orange County 33°41′02″N117°30′54″W / 33.6838°N 117.5151°W / 33.6838; -117.5151 (HJFD11)
HJFD15	9.3 ft (2.8 m)	2017	Orange County 33°41′17″N117°30′45″W / 33.6881°N 117.5125°W / 33.6881; -117.5125 (HJFD15)
HJFD16	2 ft (0.61 m)	2017	Orange County 33°41′20″N117°30′43″W / 33.6888°N 117.5119°W / 33.6888; -117.5119 (HJFD16)
HJFD17	4 ft (1.2 m)	2017	Orange County 33°41′20″N117°30′43″W / 33.6888°N 117.5119°W / 33.6888; -117.5119 (HJFD17)
HJFD18	3.5 ft (1.1 m)	2017	Orange County 33°41′20″N117°30′42″W / 33.689°N 117.5118°W / 33.689; -117.5118 (HJFD18)
HJFD19	2.5 ft (0.76 m)	2017	Orange County 33°41′21″N117°30′42″W / 33.6891°N 117.5117°W / 33.6891; -117.5117 (HJFD19)
HJFD21	7.5–4.0 ft (2.3–1.2 m)	2018	Orange County 33°41′27″N117°30′42″W / 33.6907°N 117.5118°W / 33.6907; -117.5118 (HJFD21)
HJFD22	5 ft (1.5 m)	2018	Orange County 33°41′27″N117°30′42″W / 33.6909°N 117.5118°W / 33.6909; -117.5118 (HJFD22)
HJFD23	3.0–0.0 ft (0.91–0.00 m)	2018	Orange County 33°41′28″N117°30′42″W / 33.6911°N 117.5118°W / 33.6911; -117.5118 (HJFD23)
HJFD25	4 ft (1.2 m)	2018	Orange County 33°41′29″N117°30′42″W / 33.6915°N 117.5116°W / 33.6915; -117.5116 (HJFD25)
HJFD26	6.0–0.0 ft (1.8–0.0 m)	2018	Orange County 33°41′30″N117°30′41″W / 33.6916°N 117.5115°W / 33.6916; -117.5115 (HJFD26)
HJFD29	6 ft (1.8 m)	2018	Orange County 33°41′32″N117°30′44″W / 33.6922°N 117.5121°W / 33.6922; -117.5121 (HJFD29)
HJFD30	4 ft (1.2 m)	2018	Orange County 33°41′32″N117°30′44″W / 33.6922°N 117.5121°W / 33.6922; -117.5121 (HJFD30)
HJFD31	6.0–0.0 ft (1.8–0.0 m)	2018	Orange County 33°41′32″N117°30′44″W / 33.6923°N 117.5123°W / 33.6923; -117.5123 (HJFD31)
HJFD32	9.5–4.0 ft (2.9–1.2 m)	2018	Orange County 33°41′33″N117°30′46″W / 33.6925°N 117.5127°W / 33.6925; -117.5127 (HJFD32)
HJFD33	6.8–0.0 ft (2.1–0.0 m)	2018	Orange County 33°41′34″N117°30′46″W / 33.6928°N 117.5129°W / 33.6928; -117.5129 (HJFD33)
HJFD34	7.0–3.0 ft (2.13–0.91 m)	2018	Orange County 33°41′34″N117°30′48″W / 33.6928°N 117.5132°W / 33.6928; -117.5132 (HJFD34)
HJFD34.1/35		2018	Orange County 33°41′34″N117°30′48″W / 33.6928°N 117.5132°W / 33.6928; -117.5132 (HJFD34.1/35)
HJFD37	3 ft (0.91 m)	2018	Orange County 33°41′35″N117°30′49″W / 33.693°N 117.5136°W / 33.693; -117.5136 (HJFD37)
HJFD40	2.6 ft (0.79 m)	2018	Orange County 33°41′36″N117°30′51″W / 33.6934°N 117.5142°W / 33.6934; -117.5142 (HJFD40)
HJFD41	2.8 ft (0.85 m)	2018	Orange County 33°41′37″N117°30′51″W / 33.6935°N 117.5142°W / 33.6935; -117.5142 (HJFD41)
SJFD1	9 ft (2.7 m)	2018	Orange County 33°35′25″N117°30′06″W / 33.5902°N 117.5018°W / 33.5902; -117.5018 (SJFD1)	San Juan Creek
SJFD2	2.5 ft (0.76 m)	2018	Orange County 33°35′25″N117°30′06″W / 33.5903°N 117.5018°W / 33.5903; -117.5018 (SJFD2)
SJFD3	2.5–6 ft (0.76–1.83 m)	2018	Orange County 33°35′25″N117°30′06″W / 33.5904°N 117.5017°W / 33.5904; -117.5017 (SJFD3)
SJFD4	5.0–9.0 ft (1.5–2.7 m)	2018	Orange County 33°35′26″N117°30′06″W / 33.5905°N 117.5017°W / 33.5905; -117.5017 (SJFD4)
SJFD5	4.0–5.0 ft (1.2–1.5 m)	2018	Orange County 33°35′27″N117°30′05″W / 33.5908°N 117.5015°W / 33.5908; -117.5015 (SJFD5)
SJFD6	0–3.4 ft (0.0–1.0 m)	2018	Orange County 33°35′27″N117°30′05″W / 33.5908°N 117.5015°W / 33.5908; -117.5015 (SJFD6)
SJFD7	4.8 ft (1.5 m)	2018	Orange County 33°35′27″N117°30′04″W / 33.5909°N 117.501°W / 33.5909; -117.501 (SJFD7)
SJFD9	3.0–4.5 ft (0.91–1.37 m)	2018	Orange County 33°35′27″N117°30′01″W / 33.5908°N 117.5002°W / 33.5908; -117.5002 (SJFD9)
SJFD10	2.0–3.0 ft (0.61–0.91 m)	2018	Orange County 33°35′27″N117°30′00″W / 33.5907°N 117.4999°W / 33.5907; -117.4999 (SJFD10)
SJFD11	1.0–5.0 ft (0.30–1.52 m)	2018	Orange County 33°35′26″N117°29′59″W / 33.5906°N 117.4998°W / 33.5906; -117.4998 (SJFD11)
SJFD12	10 ft (3.0 m)	2019	Orange County 33°35′26″N117°29′59″W / 33.5906°N 117.4996°W / 33.5906; -117.4996 (SJFD12)
SJFD13	2 ft (0.61 m)	2019	Orange County 33°35′27″N117°29′56″W / 33.5907°N 117.499°W / 33.5907; -117.499 (SJFD13)
SJFD14	12 ft (3.7 m)	2019	Orange County 33°35′33″N117°29′50″W / 33.5926°N 117.4973°W / 33.5926; -117.4973 (SJFD14)
SJFD15	4 ft (1.2 m)	2019	Orange County 33°35′34″N117°29′46″W / 33.5928°N 117.4962°W / 33.5928; -117.4962 (SJFD15)
SJFD17	2 ft (0.61 m)	2019	Orange County 33°35′34″N117°28′18″W / 33.5927°N 117.4716°W / 33.5927; -117.4716 (SJFD17)
SJFD18	3 ft (0.91 m)	2019	Orange County 33°35′33″N117°28′24″W / 33.5925°N 117.4734°W / 33.5925; -117.4734 (SJFD18)
SJFD19	6 ft (1.8 m)	2019	Orange County 33°35′33″N117°28′30″W / 33.5925°N 117.4749°W / 33.5925; -117.4749 (SJFD19)
SJFD20	10 ft (3.0 m)	2019	Orange County 33°35′34″N117°28′31″W / 33.5929°N 117.4753°W / 33.5929; -117.4753 (SJFD20)
SJFD21	3 ft (0.91 m)	2019	Orange County 33°35′32″N117°28′15″W / 33.5921°N 117.4709°W / 33.5921; -117.4709 (SJFD21)
SJFD22	2 ft (0.61 m)	2019	Orange County 33°35′32″N117°28′15″W / 33.5921°N 117.4708°W / 33.5921; -117.4708 (SJFD22)
SJFD23	13 ft (4.0 m)	2019	Orange County 33°35′39″N117°28′05″W / 33.5942°N 117.4681°W / 33.5942; -117.4681 (SJFD23)
SJFD24	5 ft (1.5 m)	2019	Orange County 33°35′32″N117°28′15″W / 33.5921°N 117.4708°W / 33.5921; -117.4708 (SJFD24)
SJFD25	2 ft (0.61 m)	2019	Orange County 33°35′39″N117°28′05″W / 33.5942°N 117.4681°W / 33.5942; -117.4681 (SJFD25)
SJFD26	5 ft (1.5 m)	2019	Orange County 33°35′38″N117°28′00″W / 33.5938°N 117.4667°W / 33.5938; -117.4667 (SJFD26)
SJFD27	5 ft (1.5 m)	2019	Orange County 33°35′37″N117°27′59″W / 33.5937°N 117.4663°W / 33.5937; -117.4663 (SJFD27)
SJFD28	4.5–5.0 ft (1.4–1.5 m)	2018	Orange County 33°35′50″N117°27′45″W / 33.5973°N 117.4624°W / 33.5973; -117.4624 (SJFD28)
SJFD29	1.5–2.0 ft (0.46–0.61 m)	2018	Orange County 33°35′52″N117°27′42″W / 33.5978°N 117.4618°W / 33.5978; -117.4618 (SJFD29)
SJFD30	2.5 ft (0.76 m)	2018	Orange County 33°35′53″N117°27′41″W / 33.598°N 117.4615°W / 33.598; -117.4615 (SJFD30)
SJFD31	4.0–4.5 ft (1.2–1.4 m)	2018	Orange County 33°35′57″N117°27′41″W / 33.5993°N 117.4614°W / 33.5993; -117.4614 (SJFD31)
TCFD7	6 ft (1.8 m)	2014	Orange County 33°40′27″N117°31′34″W / 33.6742°N 117.526°W / 33.6742; -117.526 (TCFD7)	Trabuco Creek
TCFD9	9 ft (2.7 m)	2014	Orange County 33°40′28″N117°31′30″W / 33.6744°N 117.525°W / 33.6744; -117.525 (TCFD9)
TCFD10	2.5 ft (0.76 m)	2014	Orange County 33°40′28″N117°31′30″W / 33.6744°N 117.525°W / 33.6744; -117.525 (TCFD10)
TCFD11	6.5 ft (2.0 m)	2014	Orange County 33°40′28″N117°31′30″W / 33.6745°N 117.525°W / 33.6745; -117.525 (TCFD11)
TCFD11	6.5 ft (2.0 m)	2018	Orange County 33°40′28″N117°31′30″W / 33.6744°N 117.5251°W / 33.6744; -117.5251 (TCFD11)
SCFD4	10 ft (3.0 m)	2019	Orange County 33°45′07″N117°34′31″W / 33.75193°N 117.57539°W / 33.75193; -117.57539 (SCFD4)	Silverado Creek	Santa Ana River
SCFD5	3 ft (0.91 m)	2019	Orange County 33°45′08″N117°34′30″W / 33.75209°N 117.57513°W / 33.75209; -117.57513 (SCFD5)
SCFD7	6.5 ft (2.0 m)	2017	Orange County 33°45′05″N117°34′16″W / 33.7514°N 117.5711°W / 33.7514; -117.5711 (SCFD7)
SCFD8	6.5 ft (2.0 m)	2017	Orange County 33°45′06″N117°34′16″W / 33.7517°N 117.571°W / 33.7517; -117.571 (SCFD8)
SCFD10	7.5 ft (2.3 m)	2017	Orange County 33°45′07″N117°34′14″W / 33.7519°N 117.5705°W / 33.7519; -117.5705 (SCFD10)
SCFD12	4 ft (1.2 m)	2017	Orange County 33°45′08″N117°34′05″W / 33.7522°N 117.5681°W / 33.7522; -117.5681 (SCFD12)
Glenbrook Gulch Dam	10 ft (3.0 m)	2010	Mendocino County 39°15′55″N123°40′08″W / 39.2653°N 123.669°W / 39.2653; -123.669 (Glenbrook Gulch Dam)	Glenbrook Gulch	Albion River	Water diversion dam owned by a timber company.
Unknown		2014	Irmulco 39°25′14″N123°30′07″W / 39.4205°N 123.502°W / 39.4205; -123.502 (Unknown)	Olds Creek	Noyo River
D.B. Fields/Johnson Dam		1946	Mendocino County 39°17′42″N123°23′56″W / 39.2951°N 123.399°W / 39.2951; -123.399 (D.B. Fields/Johnson Dam)	Rice Creek	Big River
McGowan Dam	6 ft (1.8 m)	1998		Butte Creek	Butte Creek	Irrigation dam.
Western Canal East Dam	10 ft (3.0 m)	1998
Western Canal Main Dam	10 ft (3.0 m)	1998
McPherrin Dam	12 ft (3.7 m)	1998	Biggs 39°26′48″N121°52′26″W / 39.4467°N 121.874°W / 39.4467; -121.874 (McPherrin Dam)
Old Carmel River Dam	32 ft (9.8 m)	2016	Monterey 36°26′20″N121°42′17″W / 36.4388°N 121.7048°W / 36.4388; -121.7048 (Old Carmel River Dam)	Carmel River	Carmel River	Owned by California American Water.
San Clemente Dam	106 ft (32 m)	2015	Monterey County 36°26′09″N121°42′32″W / 36.4359°N 121.7088°W / 36.4359; -121.7088 (San Clemente Dam)			Owned by California American Water, the dam was deemed unsafe in 1992 by the Department of Water Resources. It was no longer serving its use by supplying water to the Monterey Peninsula and blocked steelhead from spawning upstream. [4]
Pennington Creek Dam		2018	San Luis Obispo 35°20′37″N120°43′58″W / 35.3436°N 120.7328°W / 35.3436; -120.7328 (Pennington Creek Dam)	Pennington Creek	Morro Bay
Upper Dam (Lost Man Dam)	7 ft (2.1 m)	1989	41°19′45″N124°01′19″W / 41.3291°N 124.0219°W / 41.3291; -124.0219 (Upper Dam (Lost Man Dam))	Lost Man Creek	Redwood Creek
Sweasey Dam	55 ft (17 m)	1970	Arcata 40°49′11″N123°57′22″W / 40.8196°N 123.956°W / 40.8196; -123.956 (Sweasey Dam)	Mad River	Mad River
East Mill Creek Barrier	12 ft (3.7 m)	2008	Humboldt County 40°19′17″N124°16′23″W / 40.3215°N 124.273°W / 40.3215; -124.273 (East Mill Creek Barrier)	East Mill Creek	Mattole River
Cahill Dam	8 ft (2.4 m)	2013	Santa Cruz 37°02′17″N121°59′10″W / 37.038°N 121.986°W / 37.038; -121.986 (Cahill Dam)	Branciforte Creek	Monterey Bay	Water supply, recreation, and fire protection dam.
Tucker Road Ford	5 ft (1.5 m)	2006	Los Gatos 37°06′00″N121°57′29″W / 37.0999°N 121.958°W / 37.0999; -121.958 (Tucker Road Ford)	Soquel Creek	Monterey Bay
Crocker Creek Dam	30 ft (9.1 m)	2002	Cloverdale 38°46′38″N122°57′32″W / 38.7771°N 122.959°W / 38.7771; -122.959 (Crocker Creek Dam)	Crocker Creek	Russian River	Dam built for recreation.
Camp Meeker Dam	12 ft (3.7 m)	2009	Occidental 38°25′29″N122°57′32″W / 38.4247°N 122.959°W / 38.4247; -122.959 (Camp Meeker Dam)	Dutch Bill Creek
Fife Creek Check Dam		2010	Guerneville 38°32′00″N123°00′14″W / 38.5334°N 123.004°W / 38.5334; -123.004 (Fife Creek Check Dam)	Fife Creek
Dempster Vineyard Dam	6.6 ft (2.0 m)	2018	Forestville 38°29′10″N122°55′06″W / 38.4861°N 122.9183°W / 38.4861; -122.9183 (Dempster Vineyard Dam)	Green Valley Creek		Irrigation and frost protection dam.
Iron Horse Dam	10 ft (3.0 m)	2019	Sonoma County 38°27′48″N122°53′48″W / 38.4632°N 122.8968°W / 38.4632; -122.8968 (Iron Horse Dam)			Water supply dam.
Mumford Dam		2003	Redwood Valley 39°16′39″N123°12′29″W / 39.2774°N 123.208°W / 39.2774; -123.208 (Mumford Dam)	West Fork Russian River
Shasta River Water Association Diversion Dam		2009	Shasta County 40°51′12″N122°20′49″W / 40.8534°N 122.347°W / 40.8534; -122.347 (Shasta River Water Association Diversion Dam)	Nelson Creek	Sacramento River	Irrigation dam.
Wildcat Dam		2009	Anderson 40°25′13″N121°57′40″W / 40.4202°N 121.961°W / 40.4202; -121.961 (Wildcat Dam)	North Fork Battle Creek		Hydropower dam owned by the Pacific Gas and Electric Company.
Double U Fish Ranch Dam [5]	27 ft (8.2 m)	2023	Modoc County 41°27′20″N120°54′03″W / 41.4555°N 120.9008°W / 41.4555; -120.9008 (Double U Fish Ranch Dam)	Howards Gulch
Beale Dam	12 ft (3.7 m)	2020	Beale Air Force Base 39°06′30″N121°20′19″W / 39.1084°N 121.3385°W / 39.1084; -121.3385 (Beale Dam)	Dry Creek		Recreation dam owned by the U.S. Air Force.
Dream Lake Dam		2011	Lassen Volcanic National Park 40°26′31″N121°24′30″W / 40.442°N 121.4084°W / 40.442; -121.4084 (Dream Lake Dam)	Hot Springs Creek
McCormick-Saeltzer Dam	18 ft (5.5 m)	2000	Redding 40°29′36″N122°28′16″W / 40.4932°N 122.471°W / 40.4932; -122.471 (McCormick-Saeltzer Dam)	Clear Creek
Hammer Diversion Dam		2014	Red Bluff 40°07′24″N122°43′19″W / 40.1234°N 122.722°W / 40.1234; -122.722 (Hammer Diversion Dam)	South Fork Cottonwood Creek		Domestic water and hydropower dam.
Percolation Dam		2009	Solano County 38°31′18″N121°57′54″W / 38.5216°N 121.965°W / 38.5216; -121.965 (Percolation Dam)	Putah Creek		Dam used to increase local groundwater elevations. Owned by the City of Winter.
Swim Dam #1		2001	Sunol 37°30′46″N121°49′37″W / 37.5129°N 121.827°W / 37.5129; -121.827 (Swim Dam #1)	Alameda Creek	San Francisco Bay
Swim Dam #2		2001	Sunol 37°30′39″N121°49′34″W / 37.5109°N 121.826°W / 37.5109; -121.826 (Swim Dam #2)
Sunol Dam		2006	Sunol 37°35′40″N121°54′07″W / 37.5944°N 121.902°W / 37.5944; -121.902 (Sunol Dam)
Niles Dam		2006	Union City 37°35′09″N121°57′47″W / 37.5859°N 121.963°W / 37.5859; -121.963 (Niles Dam)
Bear Creek Dam #3	7 ft (2.1 m)	2012	Woodside 37°24′54″N122°14′35″W / 37.4151°N 122.243°W / 37.4151; -122.243 (Bear Creek Dam #3)	Bear Creek
Columbine Dam	24 ft (7.3 m)	2021	Santa Clara 37°21′12″N121°47′37″W / 37.3534°N 121.7935°W / 37.3534; -121.7935 (Columbine Dam)	Flint Creek		Owned by the San Jose Water Company.
Bonde Weir	2.1 ft (0.64 m)	2013	Palo Alto 37°26′51″N122°10′12″W / 37.4474°N 122.17°W / 37.4474; -122.17 (Bonde Weir)	San Francisquito Creek		Erosion control dam.
Lagunita Diversion Dam	8 ft (2.4 m)	2018	Palo Alto 37°25′24″N122°10′27″W / 37.4234°N 122.1742°W / 37.4234; -122.1742 (Lagunita Diversion Dam)	San Francisquito Creek		Water storage dam owned by Stanford University.
Unnamed Small Dam #1		1998		Guadalupe River
Unnamed Small Dam #2		1998
Memorial Park Dam		2015	San Mateo County 37°16′26″N122°17′19″W / 37.2739°N 122.2885°W / 37.2739; -122.2885 (Memorial Park Dam)	Pescadero Creek	Pescadero Creek	Owned by the San Mateo County Resource Conservation District.
Waterman Dam	12 ft (3.7 m)	2009	Boulder Creek 37°12′52″N122°10′34″W / 37.2144°N 122.1761°W / 37.2144; -122.1761 (Waterman Dam)	Waterman Creek		Mill dam.
Lower Mill Creek Dam	15 ft (4.6 m)	2021	Santa Cruz 37°02′33″N122°10′07″W / 37.0426°N 122.1686°W / 37.0426; -122.1686 (Lower Mill Creek Dam)	Mill Creek	San Vicente River	Logging dam owned by the CEMEX Cement Plant.
Hall Wines Dam (Dry Creek Dam)		2008	Napa County 38°22′38″N122°18′58″W / 38.3771°N 122.316°W / 38.3771; -122.316 (Hall Wines Dam (Dry Creek Dam))	Dry Creek	Napa River	Vineyard frost protection dam.
Milliken Creek Dam	13 ft (4.0 m)	2017	Napa County 38°20′56″N122°15′49″W / 38.349°N 122.2635°W / 38.349; -122.2635 (Milliken Creek Dam)	Milliken Creek		Golf course irrigation dam.
York Creek Diversion Structure		2004	St. Helena 38°30′34″N122°29′46″W / 38.5095°N 122.496°W / 38.5095; -122.496 (York Creek Diversion Structure)	York Creek
York Dam	24 ft (7.3 m)	2020	St. Helena 38°30′32″N122°29′46″W / 38.509°N 122.496°W / 38.509; -122.496 (York Dam)			Water storage dam owned by the City of St. Helena.
Maria Ygnacio Debris Basin Dam East Branch	20 ft (6.1 m)	2019	Santa Barbara County 34°27′38″N119°47′28″W / 34.4606°N 119.7912°W / 34.4606; -119.7912 (Maria Ygnacio Debris Basin Dam East Branch)	East Branch Maria Ygnacio Creek	Atascadero Creek	Debris retention basin owned by the Santa Barbara County Flood Control District.
Maria Ygnacio Aijian Barrier	5 ft (1.5 m)	2014	Santa Barbara 34°27′59″N119°47′39″W / 34.4664°N 119.7943°W / 34.4664; -119.7943 (Maria Ygnacio Aijian Barrier)	Maria Ygnacio Creek
Maria Ygnacio Debris Basin Dam Main Branch	20 ft (6.1 m)	2019	Santa Barbara County 34°28′31″N119°47′31″W / 34.4752°N 119.7919°W / 34.4752; -119.7919 (Maria Ygnacio Debris Basin Dam Main Branch)			Debris retention basin owned by the Santa Barbara County Flood Control District.
Lion Creek Diversion Dam	3 ft (0.91 m)	2014	Ojai 34°32′40″N119°09′50″W / 34.5444°N 119.164°W / 34.5444; -119.164 (Lion Creek Diversion Dam)	Lion Creek	Santa Clara River	Water supply dam for the Middle Lion Creek Campground.
Horse Creek Dam	12 ft (3.7 m)	2006	Los Padres National Forest 34°50′15″N120°01′01″W / 34.8376°N 120.017°W / 34.8376; -120.017 (Horse Creek Dam)	Horse Creek	Santa Maria River
Rodeo Grounds Berm	12 to 18 ft (3.7 to 5.5 m)	2008	Los Angeles County 34°02′31″N118°34′47″W / 34.0419°N 118.5796°W / 34.0419; -118.5796 (Rodeo Grounds Berm)	Topanga Creek	Santa Monica Bay
Trout Haven Dam			Six Rivers National Forest 41°53′26″N123°48′54″W / 41.8905°N 123.815°W / 41.8905; -123.815 (Trout Haven Dam)	Monkey Creek	Smith River
Benbow Dam	20 ft (6.1 m)	2016	Eureka 40°04′00″N123°47′46″W / 40.0666°N 123.7961°W / 40.0666; -123.7961 (Benbow Dam)	South Fork Eel River	Eel River	Owned by California State Parks.
Cedar Creek Hatchery Dam	20 ft (6.1 m)	2022	Leggett 39°50′23″N123°42′27″W / 39.8398°N 123.7075°W / 39.8398; -123.7075 (Cedar Creek Hatchery Dam)	Cedar Creek
Salt Creek Dam	10 ft (3.0 m)		Mendocino National Forest 39°17′35″N122°47′42″W / 39.2931°N 122.795°W / 39.2931; -122.795 (Salt Creek Dam)	Salt Creek
Bear Valley Dam	15 ft (4.6 m)	1982	Point Reyes National Seashore 37°59′36″N122°48′50″W / 37.9933°N 122.814°W / 37.9933; -122.814 (Bear Valley Dam)		Drakes Bay
Lower Murphy Dam	6 ft (1.8 m)		Inverness 38°04′10″N122°55′05″W / 38.0694°N 122.918°W / 38.0694; -122.918 (Lower Murphy Dam)	Home Bay
Upper Murphy Dam	25 ft (7.6 m)		Point Reyes National Seashore 38°05′07″N122°54′14″W / 38.0853°N 122.904°W / 38.0853; -122.904 (Upper Murphy Dam)	Home Ranch Creek
Haypress Pond Dam	20 ft (6.1 m)	2003	Golden Gate National Recreation Area 37°51′46″N122°32′49″W / 37.8629°N 122.547°W / 37.8629; -122.547 (Haypress Pond Dam)	Tributary to Tennessee Valley	Tennessee Cove	Water supply dam for grazing stock.
Copco Number 2 Dam	33 ft (10 m) [6]	2023	Siskiyou County 41°58′44″N122°20′24″W / 41.9789°N 122.3400°W / 41.9789; -122.3400 (Copco Number 2 Dam)	Klamath River	Klamath River	After more than 20 years of advocacy from the Un-Dam the Klamath movement, the first of the four dams on the Lower Klamath River was removed in fall 2023. [7]
East Weaver Creek Dam [5]	12 ft (3.7 m)	2023	Weaverville 40°46′37″N122°55′47″W / 40.777°N 122.9298°W / 40.777; -122.9298 (East Weaver Creek Dam)	East Weaver Creek		Water supply dam owned by the Weaverville Community Services District.
Hostler Creek Dam	14 ft (4.3 m)	2012	Hoopa 41°04′43″N123°40′05″W / 41.0787°N 123.668°W / 41.0787; -123.668 (Hostler Creek Dam)	Hostler Creek		Owned by the Hoopa Tribe.
Minnie Reeves Dam	20 ft (6.1 m)	2002	Douglas City 40°38′17″N122°54′29″W / 40.6381°N 122.908°W / 40.6381; -122.908 (Minnie Reeves Dam)	Indian Creek
Little Shasta River Flashboard Dam		2019	Siskiyou County	Little Shasta River		Irrigation dam.
Araujo Dam		2007	Siskiyou County 41°41′15″N122°31′48″W / 41.6876°N 122.53°W / 41.6876; -122.53 (Araujo Dam)	Shasta River		Flashboard diversion dam installed every summer.
Grenada Irrigation District Dam	12 ft (3.7 m)	2012	Siskiyou County 41°43′37″N122°33′27″W / 41.727°N 122.5575°W / 41.727; -122.5575 (Grenada Irrigation District Dam)			Irrigation dam.
Quinn Dam	14 ft (4.3 m)	1951		East Fork North Fork Trinity River
Lone Jack Dam	24 ft (7.3 m)
Todd Dam	14 ft (4.3 m)	1949
Trinity Cty. Water & Power Co. Dam	10 ft (3.0 m)	1946		East Fork Trinity River
North Fork Placers Dam	15 ft (4.6 m)	1950		North Fork Trinity River
Whites Gulch Upper Dam		2008	Etna 41°16′54″N123°04′33″W / 41.2818°N 123.0757°W / 41.2818; -123.0757 (Whites Gulch Upper Dam)	Whites Gulch
White Gulch Dam #1 (Whites Gulch Lower Dam)		2008	Siskiyou County 41°17′27″N123°04′59″W / 41.2909°N 123.083°W / 41.2909; -123.083 (White Gulch Dam #1 (Whites Gulch Lower Dam))			2 diversion dams.
Smith Dam	8 ft (2.4 m)	1949
Bonally Mining Co. Dam	11 ft (3.4 m)	1946		North Fork Salmon River
Bennett-Smith Dam	10 ft (3.0 m)	1950		South Fork Salmon River
Barton Dam	12 ft (3.7 m)	1950		South Fork Scott River
Rooney Bros Dam		2008	Sacramento County 38°21′30″N121°20′35″W / 38.3582°N 121.343°W / 38.3582; -121.343 (Rooney Bros Dam)	Cosumnes River	Mokelumne River
Murphy Creek Dam (Sparrow Dam)	12 ft (3.7 m)	2003	Clements 38°14′02″N121°01′35″W / 38.234°N 121.0264°W / 38.234; -121.0264 (Murphy Creek Dam (Sparrow Dam))	Murphy Creek
East Panther Creek Dam	12 ft (3.7 m)	2016	Amador County 38°29′24″N120°23′51″W / 38.49°N 120.3975°W / 38.49; -120.3975 (East Panther Creek Dam)	East Panther Creek		Owned by the Pacific Gas and Electric Company.
West Panther Creek Dam	14 ft (4.3 m)	2003	Amador County 38°29′34″N120°23′36″W / 38.4929°N 120.3933°W / 38.4929; -120.3933 (West Panther Creek Dam)	West Panther Creek
Camp Nine Dam		2012	Vallecito 38°08′09″N120°22′37″W / 38.1358°N 120.377°W / 38.1358; -120.377 (Camp Nine Dam)	Stanislaus River	San Joaquin River
Cascade Diversion Dam	18 ft (5.5 m)	2003	El Portal 37°43′06″N119°40′55″W / 37.7183°N 119.682°W / 37.7183; -119.682 (Cascade Diversion Dam)	Merced River
Dennett Dam	10 ft (3.0 m)	2018	Modesto 37°37′38″N120°59′16″W / 37.6273°N 120.9878°W / 37.6273; -120.9878 (Dennett Dam)	Tuolumne River		Dam built for recreation.
Ojai Valley Trail Ford		2011	Oak View 34°22′47″N119°18′25″W / 34.3798°N 119.307°W / 34.3798; -119.307 (Ojai Valley Trail Ford)	San Antonio Creek	Ventura River
Arco Pond Dam	10 ft (3.0 m)
Happy Isles Dam	8 ft (2.4 m)	1987
C-Lind Dam #1	56 ft (17 m)	1993
Three C. Picket Dam		1949		Beaver Creek
Big Creek Manufacturing Dam	14 ft (4.3 m)			Big Creek
A-Frame Dam	30 ft (9.1 m)	2003		Brandy Creek
Point Four Dam	6 ft (1.8 m)	1993		Butte Creek
Henry Danninbrink Dam		1927		Canyon Creek
Red Hill Mining Do. Dam	30 ft (9.1 m)	1951		Canyon Creek
Lake Christopher Dam	10 ft (3.0 m)	1994		Cold Creek
Unnamed dam	5 ft (1.5 m)	2002		Ferrari Creek
Russell Dam (Hinkley Dam)	11 ft (3.4 m)	1922		Hayfork Creek
Hessellwood Dam	10 ft (3.0 m)	1925		Hayfork Creek
Big Nugget Mine Dam	12 ft (3.7 m)	1949		Horse Creek
D.B. Fields Dam	6 ft (1.8 m)	1947		Indian Creek
Altoona Dam	12 ft (3.7 m)	1947		Kidder Creek
Clarissa V. Mining Dam	20 ft (6.1 m)	1950		Redding Creek
Anderline Dam	20 ft (6.1 m)	1936		Rush Creek
Unnamed Arizona Crossing		2002		Solstice Creek
Moser Dam		1949		Swillup Creek
Unnamed dam		2006		Ward Creek
Unnamed dam	6 ft (1.8 m)	1992		Wildcat Creek
Unnamed dam	6 ft (1.8 m)	1992

Planned and proposed removals

Dam	Height	Expected year	Location	Watercourse	Watershed	Notes
Copco Number 1 Dam	132 ft (40 m)	2024	Siskiyou County 41°58′48″N122°20′04″W / 41.98000°N 122.33444°W / 41.98000; -122.33444 (Copco Number 1 Dam)	Klamath River	Klamath River	After more than 20 years of advocacy from the Un-Dam the Klamath movement, three dams on the Klamath River in California are expected to be removed by November 2024. [8] Two remain as of November 2023 [update] . [7]
Iron Gate Dam	173 ft (53 m)		Siskiyou County 41°56′02″N122°26′07″W / 41.93389°N 122.43528°W / 41.93389; -122.43528 (Iron Gate Dam)
Matilija Dam	198 ft (60 m)		Ojai 34°29′06″N119°18′30″W / 34.4850°N 119.3082°W / 34.4850; -119.3082 (Matilija Dam)	Matilija Creek	Ventura River
Rindge Dam	100 ft (30 m)	2025–2035	Malibu Creek State Park 34°03′53″N118°41′57″W / 34.0646°N 118.6993°W / 34.0646; -118.6993 (Rindge Dam)	Malibu Creek	Santa Monica Bay
Scott Dam	138 ft (42 m)	2028 or later	Lake County 39°24′27″N122°57′33″W / 39.4075°N 122.9592°W / 39.4075; -122.9592 (Scott Dam)	Eel River	Eel River	The Pacific Gas and Electric Company has operated two hydroelectric dams on the Eel River as part of the Potter Valley Project. In 2023 the company applied to demolish the dams amid growing issues with maintenance, environmental compliance, and seismic liability. The project would drain Lake Pillsbury, make the Eel the longest free-flowing river in California, and restore hundreds of miles of habitat for endangered fish. [9]
Cape Horn Dam	63 ft (19 m)		Mendocino County 39°23′10″N123°07′00″W / 39.3862°N 123.1166°W / 39.3862; -123.1166 (Cape Horn Dam)

References

1. Rivers, American (13 February 2023). "American Rivers Dam Removal Database". Figshare . American Rivers. doi:10.6084/m9.figshare.5234068.v10 . Retrieved 25 August 2023.
2. "Trabuco District Dam Removal Project". www.fs.usda.gov. Cleveland National Forest . Retrieved 27 December 2023.
3. Hacker, Allison (9 September 2019). "A Programmatic Approach to Dam Removal and River Restoration: Cleveland National Forest, CA". American Rivers . Retrieved 27 December 2023.
4. "Carmel River diverted to demolish San Clemente Dam". SFGate. 15 December 2014. Retrieved 2016-03-02.
5. Rivers, American (12 February 2024). "American Rivers Dam Removal Database". Figshare . American Rivers. doi:10.6084/m9.figshare.5234068.v11 . Retrieved 20 February 2024.
6. "Klamath Dam Removal: Copco 2 History & Updates". Native Fish Society. November 2023. Retrieved 2 January 2024.
7. "Work on Copco No. 2 Dam Removal Comes to a Close". Klamath River Renewal. 2 November 2023. Retrieved 20 November 2023.
8. Flaccus, Gillian (26 February 2022). "Major hurdle cleared in plan to demolish 4 Klamath River dams". opb. Retrieved 16 January 2023.
9. Greenson, Thadeus (23 November 2023). "PG&E Moves Forward with Eel River Dam Removal". North Coast Journal. Retrieved 3 February 2024.

External links

• Media related to Removed dams in California at Wikimedia Commons