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330,000 cu yd (250,000 m), on the dam's downstream face. In addition to bolstering its resistance to hydraulic uplift and earthquake forces, it also screened the dam from public view. This work was carried out in 1933–1934, after which the LADWP undertook a forceful program of re-vegetation on the new earth, which succeeded in screening the dam from most everyone's notice. More recent studies have revealed
Mulholland Dam to be within the state guidelines for dam safety.
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Engineers to evaluate
Mulholland Dam, was appointed in 1931 to examine the feasibility of abandoning Mulholland Dam. An external Geological Report of the Suitability of Foundations followed this in late 1931, appointed by the Board of Water & Power Commissioners. These believed design deficiencies, made by the engineering department while planning, employed in both the Mulholland and the St. Francis Dam, were brought to light, though given little public notice in 1931.
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Soon after the failure of the St. Francis Dam, a
Committee of Engineers & Geologists to Assess Mulholland Dam was appointed. This was followed in January 1930 by the External Review Panel to evaluate the structure, convened by the State of California. In March 1930, the City of Los Angeles Board
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Although the state's panel did not recommend modification of the dam, both panels came to a similar conclusion: that the dam lacked what was at the time considered sufficient uplift relief, which might possibly lead to destabilization, and that this was unacceptable. A fourth panel, the Board of
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Due to the St. Francis Dam disaster, the
California legislature created an updated dam safety program, and, in 1929, the Department of Public Works, under the oversight of the State Engineer, was given authority to review all non-federal dams over 25 feet high or which would hold more than 50
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The decision ultimately made was to keep the
Hollywood Reservoir permanently drawn down, its capacity at no more than 4,000 acre⋅ft (4,900,000 m)—the reservoir now is usually maintained at about 2,800 acre⋅ft (3,500,000 m)—and to place an enormous amount of earth,
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The area was first surveyed for use as a reservoir in 1912. In 1922, the area was again surveyed and designs for a masonry dam begun. Construction of the dam began in August 1923. Upon completion, in
December 1924, the Mulholland Dam became the first curved concrete
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and took the lives of more than an estimated 430 people. William
Mulholland ordered the Hollywood reservoir lowered shortly after the collapse of the St. Francis Dam as a precaution as well as to help ease public fears of a repeat disaster.
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acre-feet of water. The new legislation also allowed the State to employ consultants, as they deemed necessary. Additionally, the State was given full authority to supervise the maintenance and operation of all non-federal dams.
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was also designed and built by the Bureau of Water Works and Supply, and because its design was an adaptation of the
Mulholland Dam, it was nearly identical in size and shape. In March 1928, the St. Francis Dam experienced a
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347:, cleverly setting up a compare and contrast theme for the rest of the movie between the San Fernando Valley culture of the eighties versus the grittier culture of Hollywood and central Los Angeles.
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240:. Designed with a storage capacity of 7,900 acre⋅ft (9,700,000 m) of water at a maximum depth of 183 feet (56 m), the dam forms the
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The dam was originally named Weid Canyon Dam, then
Hollywood Dam. Finally, it was renamed Mulholland Dam in honor of
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It is located in what was originally called Holly Canyon and then Weid Canyon, after an immigrant from
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and much of the city's water system, including many of the early earthen dams and storage reservoirs.
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343:. As the scene continues, the camera pans over the Hollywood hills to a wide angle shot of the
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Memorialization and Memory of
Southern California's St. Francis Dam Disaster of 1928
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of Water & Power Commissioners appointed their own Board of Review for the dam.
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330:. It is also the location of the photograph "Man on Steps, Bowl (The Thinker)" by
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562:"Statutes and Regulations pertaining to Supervision of Dams and Reservoirs"
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The Mammoth Book of Superstition: From Rabbits' Feet to Friday the 13th
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The Mulholland Dam was prominently featured in the 1974 disaster film
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A view of Hollywood Reservoir and the upstream side of Mulholland Dam
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Historic – Cultural Monuments (HCM) Listing: City Declared Monuments
260:. Mulholland was responsible for the design and construction of the
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Mulholland Dam is featured in the opening scene of the 1983 film
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22nd Annual Report of the Board of Public Service Commissioners
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The St. Francis Dam Disaster Revisited Nunis Jr., Doyce B. Ed
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Los Angeles Department of City Planning (February 28, 2009),
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designed and built by the Bureau of Water Works and Supply.
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Rogers, David J. (1995). "A Man, A Dam and A Disaster".
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Los Angeles Historic-Cultural Monuments in Hollywood
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The Los Angeles County Museum of Art, July 12, 2010
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477:. Historical Society of Southern. pp. 23–24.
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448:William Mulholland and the Rise of Los Angeles
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533:"Roster of St. Francis Dam Disaster Victims"
704:Silver Lake, Angelino Heights and Echo Park
535:. Santa Clarita Valley History In Pictures.
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362:List of dams and reservoirs in California
291:, and the resulting flood devastated the
258:Los Angeles Department of Water and Power
226:Los Angeles Department of Water and Power
132:Los Angeles Department of Water and Power
668:Los Angeles Historic-Cultural Monuments
518:California State University, Northridge
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1056:Dams in Los Angeles County, California
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188:Los Angeles Historic-Cultural Monument
567:. State of California. Archived from
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169:7,900 acre⋅ft (9,700,000 m)
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609:"Collection Favorites: Hiromu Kira"
531:Stansell, Ann C. (February 2014).
452:. University of California Press.
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896:LA Department of Water and Power
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770:CA Department of Water Resources
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762:Los Angeles County, California
593:"Earth Guards Dam from Quakes"
444:Mulholland, Catherine (2000).
18:Dam in Los Angeles, California
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963:Van Norman (aka San Fernando)
807:LA Department of Public Works
510:Stansell, Ann (August 2014).
174:Maximum water depth
115:; 100 years ago
97:; 101 years ago
45:Hollywood Hills, Los Angeles
719:Wilshire and Westlake Areas
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974:US Army Corps of Engineers
328:Roman Polanski's Chinatown
293:Santa Clarita River Valley
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1071:Landmarks in Los Angeles
684:East and Northeast Sides
234:Los Angeles, California
177:183 ft (56 m)
92:Construction began
1061:History of Los Angeles
1051:Dams completed in 1924
423:. Little, Brown Book.
76:34.11806°N 118.33111°W
419:Bainton, Roy (2016).
392:, City of Los Angeles
357:California Water Wars
679:Downtown Los Angeles
633:at Wikimedia Commons
289:catastrophic failure
262:Los Angeles Aqueduct
146:16 feet (4.9 m)
81:34.11806; -118.33111
699:San Fernando Valley
574:on October 27, 2008
345:San Fernando Valley
242:Hollywood Reservoir
228:dam located in the
166:Total capacity
160:Hollywood Reservoir
72: /
1013:Brown Mountain Dam
783:Elderberry Forebay
316:In popular culture
254:William Mulholland
203:Reference no.
143:Width (crest)
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923:(unsafe: emptied)
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709:South Los Angeles
629:Media related to
430:978-1-47213-747-0
238:Hollywood Freeway
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110:Opening date
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619:External links
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1019:Las Virgenes
958:Stone Canyon
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881:Sierra Madre
855:Puddingstone
830:Devil's Gate
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576:. Retrieved
569:the original
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1024:Little Rock
952:St. Francis
947:Silver Lake
937:Los Angeles
870:Santa Anita
865:San Gabriel
820:Big Tujunga
689:Harbor Area
549:Rogers 1995
498:Rogers 1995
340:Valley Girl
332:Hiromu Kira
277:gravity dam
79: /
67:118°19′52″W
55:Coordinates
1045:Categories
942:Mulholland
921:Dry Canyon
915:Chatsworth
835:Eaton Wash
815:Big Dalton
578:October 4,
373:References
323:Earthquake
195:Designated
49:California
1031:(disused)
1015:(disused)
992:Sepulveda
877:(disused)
860:San Dimas
694:Hollywood
520:(Thesis).
396:March 18,
151:Reservoir
64:34°07′5″N
987:Santa Fe
965:(failed)
954:(failed)
932:Fairmont
906:(failed)
840:Live Oak
825:Cogswell
760:Dams in
714:Westside
351:See also
128:Owner(s)
41:Location
910:Bouquet
850:Pacoima
788:Pyramid
778:Castaic
248:History
156:Creates
118: (
100: (
1029:Rindge
982:Hansen
927:Encino
875:Sawpit
845:Morris
481:
456:
427:
269:Odense
1006:Other
572:(PDF)
565:(PDF)
224:is a
580:2013
479:ISBN
454:ISBN
425:ISBN
398:2017
282:The
220:The
198:1989
120:1924
113:1924
102:1923
95:1923
232:of
206:421
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595:.
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334:.
47:,
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746:t
739:v
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646:v
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487:.
462:.
433:.
122:)
104:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
