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U.S. Army Corps of Engineers
Albeni Falls Dam
2376 E. Highway 2
Oldtown, ID 83822

208-437-3133

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Albeni Falls Dam

Albeni Falls DamAlbeni Falls Dam was authorized for construction under the Flood Control Act of 1950. This Act was signed by the United States Congress in response to a great flood that swept over the river valleys of the Columbia basin in 1948. Albeni Falls Dam was built from January 1951 to December of 1955 at a total cost of $34 million.

The dam is made up of two different parts: the powerhouse and the spillway. The powerhouse contains powerful turbines and generators that convert gravity-driven river water into hydroelectricity. The spillway can either store water for downstream power production and irrigation at other dams along the Pend Oreille and Columbia Rivers, or release water for upstream flood control. There is 136,000 cubic yards (61 million pounds) of concrete in the structure.

Today, it produces over 200 million kilowatt hours of electrical energy each year. When running at top capacity, the three Kaplan generators can generate 42.6 megawatts. That's enough power to supply about 15,000 homes. Bonneville Power Administration markets this electricity to customers primarily in the Pacific Northwest. This power production saves the United States from buying about 4.9 million barrels of imported oil each year.

Flow Update

For Immediate Release
April 15, 2014

Outflow from Albeni Falls Dam will increase from 36,000 cubic feet per second to 38,000 cfs beginning at 9:30 a.m. today.  Lake Pend Oreille elevation, as measured at the Hope Gage, is 2,053.34 feet.

Inflows to the lake are beginning to increase and the lake is slowly beginning to refill, but over the course of a day or two it is possible the lake may draft.  It is expect the lake could be near 2,053.5 feet by the end of the week.  The end-of-month target elevation is 2,054.25 feet.  This level may be higher if the natural lake constriction between Albeni Falls Dam and lake controls releases.

The Corps modeling results for possible Lake elevations and streamflows can be found here:
http://www.nws.usace.army.mil/About/Offices/Engineering/HydraulicsandHydrology/OperationalProjections.aspx

These modeling results will be updated weekly.  The current water supply forecast for Albeni Falls Dam is 122 percent of average.  With the above average forecast there is a possibility that Lake Pend Oreille and/or Albeni Falls Dam releases could exceed flood stage.  The Corps is closely monitoring weather and snowpack conditions, lake inflow, forecasted releases and the level of Lake Pend Oreille.  The Corps will continue to operate Albeni Falls Dam to minimize flood damage.

A public information meeting for Albeni Falls Dam operations is scheduled at the Priest River High School cafeteria at 6 p.m., April 22.

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