Table of Contents
- 1 When was the Dworshak Dam built?
- 2 What would happen if Dworshak Dam broke?
- 3 How much electricity does Dworshak Dam produce?
- 4 Who owns the Dworshak Dam?
- 5 What would happen if the Hungry Horse Dam failed?
- 6 What is it like to live in Orofino Idaho?
- 7 Who is dworshak?
- 8 Does Dworshak Dam have a fish ladder?
- 9 When did the Dworshak Dam start generating power?
- 10 Where is the Dworshak Dam in Idaho located?
- 11 How big is the Dworshak Dam fish hatchery?
When was the Dworshak Dam built?
1973
Dworshak Dam & Reservoir/Opened
Originally authorized as Bruces Eddy Dam in the 1962 Flood Control Act, the name was changed to Dworshak Dam in 1963. Construction began in 1966, and the project started operating for flood control in 1972. The three turbine units began generating power in 1973.
What would happen if Dworshak Dam broke?
The impact of a dam failure would be huge, likely inundating the communities of Ahsahka, Orofino and Lewiston as well as Clarkston, Wash. In fact, Henrickson said, such a failure would likely be felt through five downstream dams — all the way to McNary Dam on the Columbia River near Umatilla, Ore.
How far down is Dworshak Reservoir?
Dworshak Reservoir is 86.2 km long and has,295 km of mostly steep shoreline. Maximum depth is 194 m with a corresponding volume of 4.28 billion m3 at full pool. Surface area when full is 6,644 ha and mean depth is 56 m.
How much electricity does Dworshak Dam produce?
Dworshak Dam will be a concrete gravity dam with an initial power production potentially of 400,000 kilowatts from three generators. Three additional generators can be added later to boost the power output to 1,060,000 kilowatts.
Who owns the Dworshak Dam?
U.S. Army Corps of Engineers
| Dworshak Dam | |
|---|---|
| Owner(s) | U.S. Army Corps of Engineers |
| Dam and spillways | |
| Type of dam | Gravity dam |
| Impounds | North Fork of the Clearwater River |
How did Dworshak Dam get its name?
The dam was named after Henry Dworshak, a U.S. Senator for Idaho. There are 3 power-generating units at Dworshak, and the Governor authorized 3 more in 1990.
What would happen if the Hungry Horse Dam failed?
A 2006 planning exercise simulating Hungry Horse Dam failing during Memorial Day weekend estimated that 75,000 residents and tourists would need to be evacuated. Portions of Columbia Falls and Kalispell likely would be submerged, and an inland tsunami in Flathead Lake would send water as far as Thompson Falls.
What is it like to live in Orofino Idaho?
Orofino is a town in Idaho with a population of 3,109. Living in Orofino offers residents a sparse suburban feel and most residents own their homes. Residents of Orofino tend to be conservative. The public schools in Orofino are above average.
Who built the Dworshak Dam?
The dam is located approximately four miles (6 km) northwest of Orofino and impounds the Dworshak Reservoir for flood control and hydroelectricity generation….
| Dworshak Dam | |
|---|---|
| Construction cost | $327 million |
| Owner(s) | U.S. Army Corps of Engineers |
| Dam and spillways | |
| Type of dam | Gravity dam |
Who is dworshak?
Washington, D.C., U.S. Henry Clarence Dworshak Jr. (August 29, 1894 – July 23, 1962) was a United States Senator and Congressman from Idaho. Originally from Minnesota, he was a Republican from Burley, and served over 22 years in the House and Senate.
Does Dworshak Dam have a fish ladder?
Dworshak NFH is located at the confluence of the North Fork and the main Clearwater River, just below Dworshak Dam. The dam blocked migrating steelhead and salmon from reaching their natural spawning grounds on the North Fork of the Clearwater River, and its height made it impossible to construct a fish ladder.
What was the first dam in Idaho?
It is located near Murphy, Idaho. The dam was built in 1901 to generate electricity. It is the oldest hydroelectric dam on the Snake River….
| Swan Falls Dam | |
|---|---|
| Location | Ada / Owyhee counties, Idaho |
| Coordinates | 43°14′36″N 116°22′46″WCoordinates: 43°14′36″N 116°22′46″W |
| Opening date | 1901 |
| Operator(s) | Idaho Power Company |
When did the Dworshak Dam start generating power?
Construction began in 1966, and the project started operating for flood control in 1972. The three turbine units began generating power in 1973. Dworshak Dam is the third tallest dam in the U.S.
Where is the Dworshak Dam in Idaho located?
Dworshak Dam is a concrete gravity dam in the western United States, on the North Fork Clearwater River in Clearwater County, Idaho.
How tall is the Dworshak Dam in California?
Dworshak Dam. The dam is located approximately four miles (6 km) northwest of Orofino and impounds the Dworshak Reservoir for flood control and hydroelectricity generation. With a height of 717 feet (219 m), Dworshak is the third tallest dam in the United States and the tallest straight-axis concrete dam in the Western Hemisphere.
How big is the Dworshak Dam fish hatchery?
The hatchery has a capacity of 6,000 adult fish, and releases about 3.4 million juveniles into the river system each year. The Dworshak Dam power station was designed to accommodate six generating units for purposes of peaking power production.