Hemet is a city in the San Jacinto Valley in Riverside County, California. It covers a total area of 27.8 square miles (72 km2), about half of the valley, which it shares with the neighboring city of San Jacinto. The population was 89,833 at the 2020 census.
Big Bear Lake is a reservoir in the San Bernardino Mountains, in San Bernardino County, California, United States. It is a snow and rain fed lake, having no other means of tributaries or mechanical replenishment. At a surface elevation of 6,743 ft (2,055 m), it has an east-west length of approximately 7 mi (11 km) and is approximately 2.5 mi (4.0 km) at its widest measurement, though the lake's width mostly averages a little more than 1⁄2 mi (0.8 km). These approximations are based on the lake having an optimum retainable water level. At dam's end Big Bear measures its deepest water at 72 ft (22 m).
The Colorado River Aqueduct, or CRA, is a 242 mi (389 km) water conveyance in Southern California in the United States, operated by the Metropolitan Water District of Southern California (MWD). The aqueduct impounds water from the Colorado River at Lake Havasu on the California-Arizona border, west across the Mojave and Colorado deserts to the east side of the Santa Ana Mountains. It is one of the primary sources of drinking water for Southern California.
Lake Hemet is a water storage reservoir located in the San Jacinto Mountains in Mountain Center, Riverside County, California, with a capacity of 14,000 acre-feet (17,000,000 m3) of water. It was created in 1895 with the construction of Lake Hemet Dam. Originally built by a private company, today it is owned and operated by the Lake Hemet Municipal Water District (LHMWD).
Diamond Valley Lake is a man-made off-stream reservoir located near Hemet, California, United States. It is one of the largest reservoirs in Southern California and also one of the newest. With a capacity of 800,000 acre-feet (990,000,000 m3), the lake nearly doubled the area's surface water storage capacity and provides additional water supplies for drought, peak summer, and emergency needs.
Parker Dam is a concrete arch-gravity dam that crosses the Colorado River 155 miles (249 km) downstream of Hoover Dam. Built between 1934 and 1938 by the Bureau of Reclamation, it is 320 feet (98 m) high, 235 feet (72 m) of which are below the riverbed (the deep excavation was necessary in order to reach the bedrock on which the foundation of the dam was built), making it the deepest dam in the world. The portion of the dam above the foundation stands 85 feet (25.9 m) tall, making it the only dam in the world that stands more underground than above ground. The dam's primary functions are to create a reservoir, and to generate hydroelectric power. The reservoir behind the dam is called Lake Havasu and can store 647,000 acre⋅ft (798,000,000 m3; 2.11×1011 US gal; 1.76×1011 imp gal). The dam straddles the Arizona-California state border at the narrows the river passes through between the Whipple Mountains in San Bernardino County, California and the Buckskin Mountains in La Paz County, Arizona.
Lake Parramatta is a heritage-listed man-made reservoir and a recreational area located in North Parramatta, City of Parramatta, in the Western Sydney region of New South Wales, Australia. The masonry arch-walled dam across Hunts Creek was completed in 1856 to supply water for domestic purposes; and was operational until 1909. The dam has since been decommissioned and the lake and the surrounding nature reserve are a popular recreational area.
Castaic Dam is an embankment dam in northwestern Los Angeles County, California, in the unincorporated area of Castaic. Although located on Castaic Creek, a major tributary of the Santa Clara River, Castaic Creek provides little of its water. The lake is the terminus of the West Branch of the California Aqueduct, part of the State Water Project. The dam was built by the California Department of Water Resources and construction was completed in 1973. The lake has a capacity of 325,000 acre-feet (401,000,000 m3) and stores drinking water for the western portion of the Greater Los Angeles Area.
Theodore Roosevelt Dam is a dam on the Salt River located northeast of Phoenix, Arizona. The dam is 357 feet (109 m) high and forms Theodore Roosevelt Lake as it impounds the Salt River. Originally built between 1905 and 1911, the dam was renovated and expanded in 1989–1996. The dam is named after President Theodore Roosevelt. Serving mainly for irrigation, water supply, and flood control, the dam also has a hydroelectric generating capacity of 36 megawatts.
The San Jacinto River is a 42-mile-long (68 km) river in Riverside County, California. The river's headwaters are in Santa Rosa and San Jacinto Mountains National Monument. The lower portion of the 765-square-mile (1,980 km2) watershed is urban and agricultural land. As a partially endorheic watershed that is contiguous with other Great Basin watersheds, the western side of the San Jacinto Basin is a portion of the Great Basin Divide.
The Presumpscot River is a 25.8-mile-long (41.5 km) river located in Cumberland County, Maine. It is the main outlet of Sebago Lake. The river provided an early transportation corridor with reliable water power for industrial development of the city of Westbrook and the village of South Windham.
Lake Livingston is a reservoir located in the East Texas Piney Woods. Lake Livingston was built and is owned and operated by the Trinity River Authority (TRA) of Texas under contract with the City of Houston for water-supply purposes. The lake is the second-largest lake located wholly within the state of Texas. The Livingston Dam, constructed across the Trinity River about 7 miles (11 km) southwest of the city of Livingston is 2.5 miles (4 km) in length and has an average depth of 55 feet (17 m).
The Eastern Municipal Water District of Southern California is a regional water district formed in 1950 to secure additional water for a largely rural area of western Riverside County. In addition to water service, responsibilities include sewage collection, water desalination and water recycling.
Mountain Center is an unincorporated community and census-designated place in the San Jacinto Mountains, within western central Riverside County, California.
Canyon Lake, sometimes referenced as Railroad Canyon Reservoir, is a reservoir created in 1928 by the construction of the Railroad Canyon Dam in Railroad Canyon or in the Temescal Mountains of southwestern Riverside County, California. The reservoir covers approximately 525 acres (212 ha), has 14.9 miles (24.0 km) of shoreline, and has a storage capacity of 11,586 acre⋅ft (14,291,000 m3). It is owned and operated by the Elsinore Valley Municipal Water District.
The San Jacinto Valley is a valley located in Riverside County, in Southern California, in the Inland Empire. The valley is located at the base of the San Jacinto Mountains in the east and Santa Rosa Hills to the south with the San Gorgonio Pass to the north. The average elevation is 1,500 feet (460 m), with the highest points in the foothills south of Hemet and the western slopes of the San Jacinto Mountains. It is home to two cities, Hemet and San Jacinto, and several unincorporated communities. According to the 2020 census, the valley has a combined population of over 190,000 residents, including more than 143,000 residents within the city limits of Hemet and San Jacinto. The valley is also where the story and play "Ramona" was set; the story was written after author Helen Hunt Jackson visited the valley in the 1880s. The valley is also known for being an area of agriculture, which has given way to more urbanized development.
The Sweetwater Dam is a dam across the Sweetwater River in San Diego County, California. It is located approximately 12 miles (19 km) east of San Diego, 9 miles (14 km) and borders Bonita to the southwest and La Presa to the northeast. The 108-foot (33 m)-high masonry arch dam impounds 960-acre (390 ha) Sweetwater Reservoir.
Morena Dam is a rockfill dam across Cottonwood Creek, a tributary of the Tijuana River, in southern San Diego County, California in the United States. Originally completed in 1912 and raised several times afterward, the dam is one of the oldest components of the city of San Diego's municipal water system, providing between 1,600 to 15,000 acre-feet of water per year. It is one of the few facilities in the San Diego water supply system that relies entirely on local runoff.
Barrett Dam is a concrete arch-gravity dam in southern San Diego County, California in the United States, forming Barrett Lake on Cottonwood Creek. The dam is part of the city of San Diego's local water supply system.
The San Jacinto tunnel is considered the key link in Colorado River Aqueduct system. The 13 mi (21 km) long, 16 ft diameter tunnel runs beneath the San Jacinto Mountains between Cabazon, California and Gilman Hot Springs in Riverside County, California.
