Flood Control Dams in California

California has 151 flood control dams, of which 127 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Oroville	Butte	770	High	Fair	1968
2	Seven Oaks	San Bernardino	550	High	Satisfactory	1999
3	Pine Flat Dam	Fresno	440	High	Not Available	1954
4	Pacoima	Los Angeles	365	High	Satisfactory	1929
5	Warm Springs Dam	Sonoma	356	High	Not Available	1983
6	Cogswell	Los Angeles	266	High	Satisfactory	1935
7	Twitchell Dam	Santa Barbara	241	High	Not Available	1958
8	Big Santa Anita	Los Angeles	225	High	Satisfactory	1927
9	Del Valle	Alameda	222	High	Fair	1968
10	Big Tujunga No. 1	Los Angeles	220	High	Satisfactory	1931
11	Box Canyon	Siskiyou	220	High	Satisfactory	1970
12	Buchanan Dam	Madera	219	High	Not Available	1975
13	New Hogan Dam	Calaveras	210	High	Not Available	1963
14	San Antonio	Monterey	202	High	Fair	1965
15	Mojave River Dam - Saddle Dike 1	San Bernardino	200	High	Not Available	1971
16	Isabella Dam	Kern	185	High	Not Available	1953
17	Hidden Dam	Madera	184	High	Not Available	1975
18	Coyote Valley Dam	Mendocino	180	High	Not Available	1959
19	Los Banos Creek Detention Dam	Merced	167	High	Not Available	1965
20	San Antonio Dam	San Bernardino	160	High	Not Available	1956
21	Keswick Dam	Shasta	157	High	Not Available	1950
22	Big Dalton	Los Angeles	153	High	Satisfactory	1929
23	Little Panoche Detention	Fresno	151	High	Not Available	1966
24	Sawpit	Los Angeles	150	High	Satisfactory	1927
25	Puddingstone	Los Angeles	147	High	Satisfactory	1928
26	San Dimas	Los Angeles	131	High	Satisfactory	1922
27	Fairmont	Los Angeles	121	High	Satisfactory	1912
28	Villa Park	Orange	118	High	Satisfactory	1963
29	Martis Creek Dam	Nevada	113	High	Not Available	1972
30	Devils Gate	Los Angeles	108	High	Satisfactory	1920
31	Ler Franklin	Los Angeles	103	High	Satisfactory	1922
32	Carbon Canyon Dam	Orange	99	High	Not Available	1961
33	Round Canyon Retarding Basin	Orange	98	Low	Satisfactory	1994
34	Hansen Dam	Los Angeles	97	High	Not Available	1940
35	Las Llajas	Ventura	96	High	Satisfactory	1981
36	Elmer J. Chesbro	Santa Clara	95	High	Satisfactory	1955
37	Matanzas Creek	Sonoma	95	High	Satisfactory	1963
38	Santa Fe Dam	Los Angeles	92	High	Not Available	1949
39	Bear Dam	Mariposa	92	High	Not Available	1954
40	Mariposa Dam	Mariposa	88	High	Not Available	1948
41	Dove Canyon	Orange	88	High	Poor	1989
42	Pine Creek	Contra Costa	87	High	Satisfactory	1956
43	Brea Dam - Saddle Dike 1	Orange	87	High	Not Available	1942
44	Spencer Lake	San Mateo	87	High	Satisfactory	1876
45	Wide Canyon	Riverside	84	High	Satisfactory	1968
46	Live Oak	Los Angeles	76	High	Satisfactory	1922
47	Hland Creek	Lake	75	High	Satisfactory	1962
48	Owens Dam	Mariposa	75	High	Not Available	1949
49	Gasburg Creek Dike	Tuolumne	75	High	Satisfactory	1971
50	Ward Creek	Alameda	71	High	Satisfactory	1963
51	Lang Creek Detention Basin	Ventura	67	High	Satisfactory	2004
52	Dry Canyon	Los Angeles	66	High	Satisfactory	1912
53	Thompson Creek	Los Angeles	66	High	Satisfactory	1928
54	Alessandro	Riverside	66	High	Satisfactory	1956
55	San Lorenzo Creek	Alameda	65	High	Satisfactory	1964
56	Amargosa Creek	Los Angeles	65	High	Satisfactory	1998
57	Burns Dam	Merced	65	High	Not Available	1950
58	Harbor View	Orange	65	High	Satisfactory	1964
59	Sycamore	Riverside	63	High	Satisfactory	1956
60	Bee Canyon Retention Basin	Orange	62	Low	Satisfactory	1994
61	Sand Creek	Fresno	60	High	Satisfactory	1980
62	Eagle Canyon Debris Basin	Riverside	60	High	Satisfactory	2015
63	Marsh Creek	Contra Costa	59	High	Satisfactory	1963
64	Farmington Dam	San Joaquin	58	High	Not Available	1951
65	Antelope	Kern	57	High	Satisfactory	1987
66	Sepulveda Dam	Los Angeles	57	High	Not Available	1941
67	Melrose Avenue	San Diego	57	High	Satisfactory	1998
68	Whittier Narrows Dam	Los Angeles	56	High	Not Available	1957
69	Cull Creek	Alameda	55	High	Satisfactory	1963
70	Mcvicker Canyon Debris Basin	Riverside	55	High	Fair
71	Ler Peters Canyon Retarding Basin	Orange	52	High	Satisfactory	1990
72	Etiwanda Debris Basin	San Bernardino	51	High	Satisfactory	2008
73	Big Dry Creek	Fresno	50	High	Satisfactory	1948
74	Harrison Street	Riverside	50	High	Satisfactory	1954
75	Cactus Basin #4	San Bernardino	50	High	Satisfactory	2022
76	Box Springs	Riverside	49	High	Satisfactory	1960
77	Blackburn	Kern	48	High	Satisfactory	1991
78	Chester Diversion	Plumas	47	High	Satisfactory	1975
79	Fancher Creek	Fresno	46	High	Satisfactory	1991
80	Fullerton Dam	Orange	46	High	Not Available	1941
81	Mabey Canyon	Riverside	46	High	Satisfactory	1974
82	Yorba	Orange	45	High	Satisfactory	1907
83	Amethyst Basin	San Bernardino	45	High	Satisfactory	2019
84	Prenda	Riverside	44	High	Satisfactory	1954
85	Woodcrest	Riverside	44	High	Satisfactory	1954
86	Bear Gulch Dam	San Benito	44	High	Not Available	1934
87	Laguna Regulating Basin	Los Angeles	43	Significant	Satisfactory	1970
88	Vista Del Mar Detention Basin	Contra Costa	42	High	Satisfactory	2011
89	Channel Diversion Dike	Los Angeles	42	Low	Satisfactory	1940
90	Richard L. Schafer Dam - Frazier Dike	Tulare	42	Significant	Not Available	1961
91	Runkle	Ventura	41	High	Satisfactory	1949
92	Upper Sand Creek Detention Basin	Contra Costa	40	High	Satisfactory	2014
93	Upper Franklin Dam	Los Angeles	40	Significant	Not Available	1915
94	Castle	Merced	40	High	Satisfactory	1991
95	Mary Street	Riverside	40	High	Satisfactory	1981
96	Pigeon Pass	Riverside	40	High	Satisfactory	1958
97	Laurel Creek	San Mateo	40	High	Satisfactory	1969
98	Sycamore Canyon	Ventura	40	High	Satisfactory	1981
99	Eastfoot Retarding Basin	Orange	39	High	Satisfactory	2007
100	Folsom Dike 7	Sacramento	38	High	Not Available	1956

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