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keep up with the rising lake, which was only held back by wooden flashboards as the water level actually exceeded the height of the poured concrete for most of the construction period. Temporary sluiceways had to be maintained in order to drain excess water from the lake, which consistently threatened to overtop the dam. By the time the dam was completed in 1923 it was said that "the value of the water stored behind
Barrett Dam by the time the structure was completed exceeded the entire cost of the dam".
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373:. Water is released into the Dulzura Conduit via an outlet tower and a 30-inch (76 cm) diameter pipe with a capacity of 271 cubic feet per second (7.7 m/s). Water stored at Lower Otay passes through the Otay Water Treatment Plant before entering the municipal system. Barrett is one of two dams on Cottonwood Creek, the other being
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Company. This dam's sole purpose was to feed the first
Dulzura Conduit, a wooden flume that extended along the mountainside to the Lower Otay reservoir 12 miles (19 km) west. In 1913, the city of San Diego purchased this development for $ 2.5 million. Flooding in 1916 (ostensibly the work of the "rainmaker"
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The city began construction on
Barrett Dam in 1919, under the direction of engineer Hiram N. Savage. In December of that year, unusually heavy rainfall filled the reservoir behind the incomplete dam, very nearly causing its failure. Over the following few months, construction was hurried in order to
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8 miles (13 km) upstream. Because
Barrett is a deeper and narrower lake than Morena and experiences less evaporation, the city prioritizes water storage in Barrett. Water is moved downstream from Morena as long as storage space is available in Barrett. Resultantly, Barrett Lake is usually at a
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Before there was a reservoir, the area was a valley that has been homesteaded by George
Barrett in the 1870s. The first dam at the Barrett site was a 20-foot (6.1 m) high concrete diversion dam built in the 1890s as part of the Cottonwood-Otay System by the Southern California Mountain Water
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Barrett Dam is located in a narrow canyon just below the confluence of
Cottonwood Creek and Pine Valley Creek, about 35 miles (56 km) east of downtown San Diego. The dam is 171 feet (52 m) high above the riverbed and 746 feet (227 m) long, forming a reservoir with 34,206 acre-feet
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In order to protect water quality, recreational access to
Barrett Lake is extremely limited. The lake is open only Wednesdays, Saturdays and Sundays, and visitors are required to take reservations. Fishing is allowed on a strict catch-and-release basis.
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is located on the face of the dam and is a stepped overflow structure controlled by gates. At maximum water levels the spillway capacity is approximately 87,500 cubic feet per second (2,480 m/s). To prevent
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The dam's primary purpose is to store water for diversion through the
Dulzura Conduit, a 14-mile (23 km) long concrete aqueduct which transfers water from the Cottonwood Creek basin to
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535:"A History of the Dams and Water Supply of Western San Diego County," Lloyd Charles Fowler, University of California, 1953
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546:"Water Supply Development in San Diego and a Review of Related Outstanding Projects | San Diego History Center"
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357:(42,192,000 m) of usable capacity. The dam contains 139,569 cubic yards (106,708 m) of concrete. The
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from overtopping the dam, the gates are left open during the rainy season from
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516:"Dry Rivers, Dammed Rivers and Floods | San Diego History Center"
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South Bay
Historical Society Bulletin, Issue No. 24, October 2019
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high level except during periods of extended drought.
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486:"Barrett Reservoir | Public Utilities: Water"
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933:International Boundary Wastewater Treatment Plant
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1002:San Diego National Wildlife Refuge Complex
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1028:Cities, communities, & municipalities
33:Barrett Dam, seen nearly complete in 1922
434:"DESCRIPTION OF THE SOURCE WATER SYSTEM"
63:Show map of San Diego County, California
1183:United States local public utility dams
1007:Tijuana Slough National Wildlife Refuge
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297:34,206 acre⋅ft (42,192,000 m)
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60:Location of Barrett Dam in California
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592:Construction Methods & Equipment
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16:Dam in San Diego County, California
1019:Tijuana River Valley Regional Park
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1188:1923 establishments in California
462:"California Data Exchange Center"
344:. The dam is part of the city of
307:252 sq mi (650 km)
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116:Barrett Dam (the United States)
348:'s local water supply system.
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119:Show map of the United States
661:San Diego County, California
432:V. Chancer (22 March 2011).
219:; 101 years ago
201:; 103 years ago
863:Mexico–United States border
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340:, forming Barrett Lake on
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997:Cleveland National Forest
923:Abelardo L. Rodríguez Dam
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623:Daily water levels table
276:746 ft (227 m)
88:Barrett Dam (California)
985:Border Field State Park
568:Engineering News-record
352:Overview and operations
315:891 acres (361 ha)
268:171 ft (52 m)
196:Construction began
1173:Dams completed in 1923
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172:32.67889°N 116.67056°W
91:Show map of California
595:. McGraw-Hill. 1922.
571:. McGraw-Hill. 1922.
548:. sandiegohistory.org
518:. sandiegohistory.org
252:Concrete gravity arch
248:Type of dam
1120:Tijuana River Valley
371:Lower Otay Reservoir
177:32.67889; -116.67056
1138:Pacific Coast Trail
1057:Valle de Las Palmas
464:. cdec.water.ca.gov
303:Catchment area
294:Total capacity
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312:Surface area
242:Dam and spillways
236:City of San Diego
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466:. Retrieved
440:. Retrieved
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364:flash floods
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328:in southern
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289:Barrett Lake
191:Water supply
1095:Pine Valley
954:Goat Canyon
928:Barrett Dam
879:Tributaries
859:Río Tijuana
762:San Vicente
702:Lake Hodges
322:Barrett Dam
175: /
163:116°40′14″W
151:Coordinates
22:Barrett Dam
1162:Categories
1115:San Ysidro
1070:California
938:Morena Dam
916:Waterworks
886:Rio Alamar
787:Upper Otay
777:Sweetwater
772:Sutherland
737:Olivenhain
727:Morro Hill
687:El Capitan
552:2014-06-15
522:2014-06-15
492:2014-06-15
468:2014-06-15
442:2014-06-15
408:References
399:Recreation
375:Morena Dam
334:California
160:32°40′44″N
145:California
1110:Otay Mesa
1100:San Diego
947:Geography
846:Watershed
601:0010-6844
577:0013-807X
346:San Diego
281:Reservoir
792:Wohlford
707:Loveland
697:Jennings
677:Cuyamaca
659:Dams in
359:spillway
257:Impounds
232:Owner(s)
137:Location
1045:Tijuana
855:Spanish
717:Miramar
712:Maerkle
692:Henshaw
672:Barrett
382:History
336:in the
286:Creates
222: (
204: (
188:Purpose
129:Country
1148:Images
1133:Others
1105:Nestor
1040:Tecate
782:Turner
767:Savage
747:Ramona
732:Murray
722:Morena
599:
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273:Length
265:Height
1075:Campo
742:Poway
682:Dixon
437:(PDF)
597:ISSN
573:ISSN
224:1923
217:1923
206:1921
199:1921
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
