Olivenhain Dam
Encyclopedia
The Olivenhain Dam is a gravity dam
near Encinitas, California
. The dam was constructed between 1998 and 2003 as part of San Diego's Emergency Storage Project with the primary purpose of water supply
for municipal use. It does not sit on a river or stream but is supplied with water by a system of pumps and pipes. The dam is connected to Lake Hodges
and the Second San Diego Aqueduct. It is constructed of roller-compacted concrete
and is the first of its type in California.
, crest roadway and mechanical work was complete in August 2003. A 750 acre (3 km²) park was also constructed around the dam and reservoir site.
The dam was designed by JV Parsons Engineering Science Inc and Harza Engineering Co. while being owned by the San Diego County Water Authority and the Olivenhain Municipal Water District.
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
near Encinitas, California
Encinitas, California
Encinitas is a coastal beach city in San Diego County, California. Located within Southern California, it is approximately north of San Diego in North County and about south of Los Angeles. As of the 2010 census, the city had a population of 59,518, up from 58,014 at the 2000 census. Encinitas is...
. The dam was constructed between 1998 and 2003 as part of San Diego's Emergency Storage Project with the primary purpose of water supply
Water supply
Water supply is the provision of water by public utilities, commercial organisations, community endeavours or by individuals, usually via a system of pumps and pipes...
for municipal use. It does not sit on a river or stream but is supplied with water by a system of pumps and pipes. The dam is connected to Lake Hodges
Lake Hodges
Lake Hodges is a lake and reservoir located in Southern California, about north of San Diego and just south of Escondido, California. When full, the reservoir has , a maximum water depth of , and of shoreline. Interstate 15 crosses Lake Hodges via the Lake Hodges Bridge...
and the Second San Diego Aqueduct. It is constructed of roller-compacted concrete
Roller-compacted concrete
Roller-compacted concrete or rolled concrete is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for Portland cement. RCC is a mix of cement/fly ash, water, sand, aggregate...
and is the first of its type in California.
Construction
Ladd Associates excavated the dam's foundation and removed 700000 cu yd (535,188.4 m³) of material on an $8.4 million contract. Construction on the actual dam began in 2000 by Kiewit Pacific and in 2001, Morrison Knudsen Corp received a $23 million contract to install the pipeline. Concrete was poured into the dam in 12 ft (3.7 m) lifts and it was "topped off" on October 31, 2002. The entire structure to include the inlet/outlet worksOutlet works
A set of outlet works is a device used to release and regulate water flow from a dam. Such devices usually consist of one or more pipes or tunnels through the embankment of the dam, directing water usually under high pressure to the river downstream...
, crest roadway and mechanical work was complete in August 2003. A 750 acre (3 km²) park was also constructed around the dam and reservoir site.
The dam was designed by JV Parsons Engineering Science Inc and Harza Engineering Co. while being owned by the San Diego County Water Authority and the Olivenhain Municipal Water District.