Island Park Dam | |
---|---|
Location | Fremont County, Idaho, near Island Park, Idaho |
Coordinates | 44°25′06.92″N111°23′47.50″W / 44.4185889°N 111.3965278°W |
Construction began | 1937 |
Opening date | 1939 |
Operator(s) | U.S. Bureau of Reclamation |
Dam and spillways | |
Type of dam | Zoned earthfill dam |
Impounds | Henrys Fork |
Height | 94 ft (29 m) |
Length | 9,500 ft (2,900 m) |
Spillway type | Ungated bathtub |
Reservoir | |
Creates | Island Park Reservoir |
Total capacity | 135,205 acre-feet (0.166773 km3) |
Catchment area | 482 sq mi (1,250 km2) [1] |
Island Park Dam is operated by the U.S. Bureau of Reclamation in Fremont County, Idaho, United States. The dam lies in Targhee National Forest near Island Park. The zoned earthfill dam was built between 1937 and 1939 as part of the Minidoka Project, which provides water to irrigate farmland in Idaho's Snake River Plain. [1]
The dam provides only water storage, impounding 135,000 acre-feet (0.167 km3), which is distributed by the Cross Cut Canal to farms in Fremont and Madison counties in Idaho, and Teton County in Wyoming. [1] The Island Park and Grassy Lake reservoirs were built as an alternative to construction of a larger project that would have flooded the Falls River area of Yellowstone National Park. [2] [3]
Island Park Dam has a humid continental climate (Köppen Dfb) bordering upon a subalpine climate (Dfc). Summers feature very warm afternoons and chilly mornings, whilst winters are freezing and very snowy with an annual snowfall averaging 214 inches or 5.44 metres and reaching 375 inches or 9.53 metres between July 1974 and June 1975. The dam's weather recording site holds the record for the eighth-lowest temperature recorded in the United States (and lowest temperature recorded in Idaho) at −60 °F or −51.1 °C.
Climate data for Island Park Dam, Idaho | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 49 (9) | 55 (13) | 62 (17) | 76 (24) | 84 (29) | 91 (33) | 97 (36) | 96 (36) | 91 (33) | 82 (28) | 68 (20) | 56 (13) | 97 (36) |
Mean maximum °F (°C) | 40 (4) | 44 (7) | 52 (11) | 64 (18) | 75 (24) | 82 (28) | 87 (31) | 88 (31) | 82 (28) | 71 (22) | 54 (12) | 41 (5) | 88 (31) |
Average high °F (°C) | 26.5 (−3.1) | 31.6 (−0.2) | 38.5 (3.6) | 48.4 (9.1) | 59.8 (15.4) | 68.8 (20.4) | 79.0 (26.1) | 78.5 (25.8) | 68.7 (20.4) | 54.9 (12.7) | 37.2 (2.9) | 27.6 (−2.4) | 51.6 (10.9) |
Average low °F (°C) | 3.0 (−16.1) | 4.8 (−15.1) | 10.5 (−11.9) | 21.5 (−5.8) | 31.1 (−0.5) | 37.7 (3.2) | 42.9 (6.1) | 40.7 (4.8) | 32.8 (0.4) | 25.1 (−3.8) | 14.9 (−9.5) | 5.6 (−14.7) | 22.6 (−5.2) |
Mean minimum °F (°C) | −28 (−33) | −25 (−32) | −16 (−27) | 3 (−16) | 19 (−7) | 27 (−3) | 33 (1) | 30 (−1) | 22 (−6) | 11 (−12) | −9 (−23) | −23 (−31) | −33 (−36) |
Record low °F (°C) | −60 (−51) | −47 (−44) | −36 (−38) | −18 (−28) | 7 (−14) | 20 (−7) | 25 (−4) | 17 (−8) | 8 (−13) | −6 (−21) | −34 (−37) | −51 (−46) | −60 (−51) |
Average precipitation inches (mm) | 3.80 (97) | 2.93 (74) | 2.48 (63) | 2.03 (52) | 2.49 (63) | 2.71 (69) | 1.25 (32) | 1.45 (37) | 1.50 (38) | 1.89 (48) | 2.56 (65) | 3.55 (90) | 28.64 (728) |
Average snowfall inches (cm) | 48.6 (123) | 37.5 (95) | 29.3 (74) | 13.9 (35) | 4.1 (10) | 0.4 (1.0) | 0.0 (0.0) | 0.1 (0.25) | 1.0 (2.5) | 6.6 (17) | 25.3 (64) | 47.9 (122) | 214.7 (543.75) |
Average precipitation days | 15 | 12 | 11 | 9 | 10 | 10 | 6 | 7 | 6 | 7 | 10 | 13 | 116 |
Source 1: Western Regional Climate Center [4] | |||||||||||||
Source 2: National Oceanic and Atmospheric Administration [5] |
The Snake River is a major river of the greater Pacific Northwest region in the United States. At 1,078 miles (1,735 km) long, it is the largest tributary of the Columbia River, in turn, the largest North American river that empties into the Pacific Ocean. The Snake River rises in western Wyoming, then flows through the Snake River Plain of southern Idaho, the rugged Hells Canyon on the Oregon–Idaho border and the rolling Palouse Hills of Washington, emptying into the Columbia River at the Tri-Cities in the Columbia Basin of Eastern Washington.
Ashton is a city in Fremont County, Idaho, United States. The population was 1,127 at the 2010 census, and it is part of the Rexburg Micropolitan Statistical Area. The district is noted for seed potato production and bills itself as the world's largest seed potato growing area.
Island Park is a city in Fremont County, Idaho, United States. The city's population was 286 at the 2010 census, up from 215 in 2000. The city was incorporated by owners of the many lodges and resorts along U.S. Route 20 in 1947, primarily to circumvent Idaho's liquor laws that prohibited the sale of liquor outside of city limits. It is only 500 feet (150 m) wide in most locations yet, at 33 miles (53 km), claims to have the longest "Main Street" in the world.
Glen Canyon Dam is a concrete arch-gravity dam in the southwestern United States, located on the Colorado River in northern Arizona, near the town of Page. The 710-foot-high (220 m) dam was built by the Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than 25 million acre-feet (31 km3). The dam is named for Glen Canyon, a series of deep sandstone gorges now flooded by the reservoir; Lake Powell is named for John Wesley Powell, who in 1869 led the first expedition to traverse the Colorado River's Grand Canyon by boat.
The Bureau of Reclamation, formerly the United States Reclamation Service, is a federal agency under the U.S. Department of the Interior, which oversees water resource management, specifically as it applies to the oversight and operation of the diversion, delivery, and storage projects that it has built throughout the western United States for irrigation, water supply, and attendant hydroelectric power generation. It is currently the U.S.'s largest wholesaler of water, bringing water to more than 31 million people, and providing one in five Western farmers with irrigation water for 10 million acres of farmland, which produce 60% of the nation's vegetables and 25% of its fruits and nuts. The Bureau is also the second largest producer of hydroelectric power in the western U.S.
The Teton Dam was an earthen dam in the western United States, on the Teton River in eastern Idaho. It was built by the U.S. Bureau of Reclamation, one of eight federal agencies authorized to construct dams. Located between Fremont and Madison counties, it suffered a catastrophic failure on June 5, 1976, as it was filling for the first time.
Derby Dam is a diversion dam built from 1903 to 1905 on the Truckee River, located about 20 miles (32 km) east of Reno in Storey and Washoe counties in Nevada, United States. It diverts water into the Truckee Canal that would otherwise enter Pyramid Lake. The canal feeds Lake Lahontan reservoir in the Carson River watershed, where it is used for irrigation.
Dinosaur National Monument is an American national monument located on the southeast flank of the Uinta Mountains on the border between Colorado and Utah at the confluence of the Green and Yampa rivers. Although most of the monument area is in Moffat County, Colorado, the Dinosaur Quarry is located in Utah, north of the town of Jensen, Utah. The nearest Colorado town is Dinosaur while the nearest city is Vernal, Utah.
Henrys Lake is a small, shallow alpine lake in the western United States, in eastern Idaho. Approximately 8 square miles (21 km2) in area, at 4 miles (6.4 km) in length and 2 miles (3.2 km) in width, its surface elevation is 6,472 ft (1,973 m) above sea level.
Jackson Lake is in Grand Teton National Park in northwestern Wyoming. This natural lake was enlarged by the construction of the Jackson Lake Dam, which was originally built in 1911, enlarged in 1916 and rebuilt by 1989. As part of the Minidoka Project the top 33 ft (10 m) of the lake is used by farmers in Idaho for irrigation purposes under water rights legislation that was enacted prior to the establishment of Grand Teton National Park. The lake is the remnant of large glacial gouging from the neighboring Teton Range to the west and the Yellowstone Plateau to the north. The lake is primarily fed by the Snake River, which flows in from the north, and empties at Jackson Lake Dam. Jackson Lake is one of the largest high altitude lakes in the United States, at an elevation of 6,772 ft (2,064 m) above sea level. The lake is up to 15 mi (24 km) long, 7 mi (11 km) wide and 438 ft (134 m) deep. The water of the lake averages below 60 °F (16 °C), even during the summer.
Pathfinder Dam is a masonry dam, located on the North Platte River, approximately 47 miles (76 km) southwest of Casper, Wyoming. It was originally constructed from 1905 to 1909 as part of the North Platte Project and has been modified several times since then. It is included on the National Register of Historic Places. Construction of the dam created Pathfinder Reservoir which provides water storage for 226,000 acres (910 km2) of irrigation in Wyoming and Nebraska. The dam is named for General John Charles Fremont, who had explored the area in 1842 and was nicknamed the "Pathfinder of the West."
The American Falls Dam is a concrete gravity-type dam in the western United States, located near American Falls, Idaho, on river mile 714.7 of the Snake River. The dam and reservoir are a part of the Minidoka Project on the Snake River Plain and are used primarily for flood control, irrigation, and recreation. When the original dam was built in the 1920s by the U.S. Bureau of Reclamation, the residents of American Falls were forced to relocate three-quarters of their town to make room for the reservoir.
Blue Mesa Reservoir is an artificial reservoir located on the upper reaches of the Gunnison River in Gunnison County, Colorado. The largest lake located entirely within the state, Blue Mesa Reservoir was created by the construction of Blue Mesa Dam, a 390 feet (120 m) tall earthen fill dam constructed on the Gunnison by the U.S. Bureau of Reclamation in 1966 for the generation of hydroelectric power. Managed as part of the Curecanti National Recreation Area, a unit of the National Park Service, Blue Mesa Reservoir is the largest lake trout and Kokanee salmon fishery in Colorado.
Jackson Lake Dam is a concrete and earth-fill dam in the western United States, at the outlet of Jackson Lake in northwestern Wyoming. The lake and dam are situated within Grand Teton National Park in Teton County. The Snake River emerges from the dam and flows about eight hundred miles (1,300 km) through Wyoming, Idaho, Oregon, and Washington to its mouth on the Columbia River in eastern Washington.
Yellowtail Dam is a dam across the Bighorn River in south central Montana in the United States. The mid-1960s era concrete arch dam serves to regulate the flow of the Bighorn for irrigation purposes and to generate hydroelectric power. The dam and its reservoir, Bighorn Lake, are owned by the U.S. Bureau of Reclamation.
Owyhee Dam is a concrete arch-gravity dam on the Owyhee River in Eastern Oregon near Adrian, Oregon, United States. Completed in 1932 during the Great Depression, the dam generates electricity and provides irrigation water for several irrigation districts in Oregon and neighboring Idaho. At the time of completion, it was the tallest dam of its type in the world. The dam is part of the Owyhee Dam Historic District, which is listed on the National Register of Historic Places.
Arizona is a landlocked state situated in the southwestern region of the United States of America. It has a vast and diverse geography famous for its deep canyons, high- and low-elevation deserts, numerous natural rock formations, and volcanic mountain ranges. Arizona shares land borders with Utah to the north, the Mexican state of Sonora to the south, New Mexico to the east, and Nevada to the northwest, as well as water borders with California and the Mexican state of Baja California to the southwest along the Colorado River. Arizona is also one of the Four Corners states and is diagonally adjacent to Colorado.
The Minidoka Project is a series of public works by the U.S. Bureau of Reclamation to control the flow of the Snake River in Wyoming and Idaho, supplying irrigation water to farmlands in Idaho. One of the oldest Bureau of Reclamation projects in the United States, the project involves a series of dams and canals intended to store, regulate and distribute the waters of the Snake, with electric power generation as a byproduct. The water irrigates more than a million acres (4,000 km²) of otherwise arid land, producing much of Idaho's potato crop. Other crops include alfalfa, fruit and sugar beets. The primary irrigation district lies between Ashton in eastern Idaho and Bliss in the southwestern corner of the state. Five main reservoirs collect water, distributing it through 1,600 miles (2,600 km) of canals and 4,000 miles (6,400 km) of lateral distribution ditches.
Grassy Lake Dam is a small dam operated by the U.S. Bureau of Reclamation in Teton County, Wyoming, immediately to the south of Yellowstone National Park. The dam lies in a corridor of Caribou-Targhee National Forest that runs between Yellowstone and Grand Teton National Parks. The dam structure and outlets are within a few hundred feet of the south boundary of Yellowstone. The zoned earthfill dam was built between 1937 and 1939 as part of the Minidoka Project, which provides water to irrigate farmland in Idaho's Snake River Plain.
Keswick Dam is a concrete gravity dam on the Sacramento River about 2 miles (3.2 km) northwest of Redding, California. Part of the U.S. Bureau of Reclamation's Central Valley Project, the dam is 157 feet (48 m) high and impounds the Keswick Reservoir, which has a capacity of 23,800 acre⋅ft (29,400,000 m3). The dam's power plant has three turbines with a generating capacity of 117 megawatts (MW), which, in 1992, was uprated from its original 75 MW. The dam and reservoir serve as an afterbay to regulate peaking power releases from the Shasta Dam upstream.
{{cite journal}}
: Cite journal requires |journal=
(help)