Ice Harbor Dam

Ice Harbor Lock and Dam is a hydroelectric, concrete gravity run-of-the-river dam in the northwest United States. On the lower Snake River in southeastern Washington, it bridges Walla Walla and Franklin counties.[4] Located eight miles (13 km) northeast of Burbank and twelve miles (19 km) east of Pasco, river mile 9.7, the dam's name comes from a tiny bay in the river where boats once tied up to wait for upstream ice-jams to break up.[5]

Ice Harbor Dam
Aerial view from northwest
Ice Harbor Dam is located in the United States
Ice Harbor Dam
Location in the United States
Ice Harbor Dam is located in Washington (state)
Ice Harbor Dam
Location in Washington
CountryUnited States
LocationFranklin and Walla Walla counties, Washington
Coordinates46.25°N 118.88°W / 46.25; -118.88
Construction beganJune 1955
Opening date1962 (1962)[1]
Owner(s)U.S. Army
Corps of Engineers
Dam and spillways
Type of damConcrete gravity
ImpoundsSnake River
Height100 feet (30 m)
Length2,822 feet (860 m)
Spillway typeService, gate-controlled
Reservoir
CreatesLake Sacajawea
Total capacity249,000 acre⋅ft (0.307 km3)[2]
Surface area8,375 acres (33.89 km2)
Normal elevation443 feet (135 m) AMSL
Power Station
TypeRun-of-the-river
Turbines3 x 90 MW units;
3 x 111 MW units[3]
Installed capacity603 MW
693 MW (max)
Columbia River Basin
Columbia River Basin

Construction began in June 1955; the main structure and three generators were completed 62 years ago in 1961,[6] with an additional three generators finished in 1976. Generating capacity is 603 megawatts, with an overload capacity of 693 MW. The spillway has ten gates and is 590 feet (180 m) in length.

Dam system

Built and operated by the U.S. Army Corps of Engineers, Ice Harbor Dam is part of the Columbia River Basin system of dams.

Visitor center

Inside the dam on the south side of the river is a large visitor center that has been recently updated to include a new film "The Snake - River of Life" and a new modern interactive touch screen kiosk with information on the dam and recreational opportunities in the area. The visitor center also has a fish ladder viewing room which offers an excellent view of migrating salmon, steelhead, and shad. Due to security, visitors must pass through the security gate to gain access.

Surrounding water bodies

Lake Sacajawea, named for Sacajawea, is formed behind the dam. The lake stretches to the base of Lower Monumental Dam, 32 miles (51 km) upstream. The Wallula Channel, formed from the backup of Snake River entering the Columbia River just southeast of Pasco, runs ten miles (16 km) downstream from the base of the dam.

Navigation lock
  • Single-lift
  • 86 feet (26 m) wide
  • 675 feet (206 m) long

Climate

The record for the highest temperature in Washington state, at 118 °F (47.8 °C), was tied at Ice Harbor Dam on August 5, 1961.[7] The record, which was shared with Wahluke (118 °F (47.8 °C) in 1928), was eventually surpassed on June 29, 2021, when Hanford reached 120 °F (48.9 °C).[8]

Climate data for Ice Harbor Dam, WA
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 67
(19)		 74
(23)		 81
(27)		 94
(34)		 100
(38)		 110
(43)		 112
(44)		 118
(48)		 100
(38)		 89
(32)		 78
(26)		 68
(20)		 118
(48)
Average high °F (°C) 41.2
(5.1)		 48.4
(9.1)		 57.5
(14.2)		 65.1
(18.4)		 73.3
(22.9)		 81.0
(27.2)		 89.2
(31.8)		 88.4
(31.3)		 79.8
(26.6)		 66.3
(19.1)		 51.3
(10.7)		 41.7
(5.4)		 65.3
(18.5)
Average low °F (°C) 27.4
(−2.6)		 30.2
(−1.0)		 34.8
(1.6)		 40.5
(4.7)		 47.5
(8.6)		 54.2
(12.3)		 59.9
(15.5)		 59.2
(15.1)		 50.8
(10.4)		 41.3
(5.2)		 34.4
(1.3)		 28.5
(−1.9)		 42.4
(5.8)
Record low °F (°C) −14
(−26)		 −14
(−26)		 13
(−11)		 22
(−6)		 28
(−2)		 38
(3)		 44
(7)		 38
(3)		 27
(−3)		 17
(−8)		 6
(−14)		 −14
(−26)		 −14
(−26)
Average precipitation inches (mm) 1.26
(32)		 0.92
(23)		 0.98
(25)		 0.80
(20)		 0.95
(24)		 0.79
(20)		 0.24
(6.1)		 0.41
(10)		 0.45
(11)		 0.82
(21)		 1.33
(34)		 1.42
(36)		 10.37
(262.1)
Average snowfall inches (cm) 2.5
(6.4)		 0.9
(2.3)		 0.1
(0.25)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0
(0)		 0.2
(0.51)		 1.6
(4.1)		 5.3
(13.56)
Source: https://wrcc.dri.edu/cgi-bin/cliMAIN.pl?wa3883
Looking north, Ice Harbor Dam with lock and one fish ladder on the left (north side of the river), spillway in the middle of the dam, and the power generation station and another fish ladder on the south side (right) of the river.

Northwest Infrastructure Proposal
Main article: Snake River § Lower Snake River dam removal

Since 2019 Representative Mike Simpson (R), representing central and eastern Idaho, has been working on and presenting the $33 billion Columbia Basin Fund, as a way to restore the endangered Columbia-Snake basin salmon, including the Snake River sockeye salmon, and steelhead. The plan was released in February 2021. The ultimate goal of the plan is to remove or breach (partial removal) four dams on the lower Snake River. This would involve the Ice Harbor, Lower Granite Dam, Little Goose Dam, and the Lower Monumental Dam beginning with the farthest inland or Lower Granite Dam. The fund would include creating alternate energy plans that would have to be implemented and finished first before any dam removal. The plan has brought together an extensive coalition of organizations, local, state, national and international, as well as the Yakama Nation, Confederated Tribes of the Umatilla Indian Reservation, Shoshone-Bannock Tribe, and the Nez Perce Tribe, in a proposed Northwest State and Tribal Fish and Wildlife Council", in support of the plan.[9][10][11]

The Bonneville Power Administration advocates for keeping the dams even though the power from the four dams are considered surplus.[12] and others oppose as written. Opposition from 17 environmental groups is the proposed license extension to 35 years for the other dams in the Columbia Basin as well as a moratorium on salmon-related lawsuits.[13]

Washington Governor Jay Inslee and Senator Patty Murray are in opposition stating that any proposal needs a "science-based," "community-driven" approach.[14] The Whitehouse, through the White House Council on Environmental Quality, released two reports that looks at the possibility of dam removal. U.S. Representatives. Dan Newhouse, Cathy McMorris Rodgers, and Jaime Herrera Beutler, all from Washington, Cliff Bentz of Oregon, Russ Fulcher of Idaho, and Matt Rosendale of Montana, referred to the report as biased. More than $17 billion has been spent on the recovery of the fish since they were classified as endangered species in 1991 but the efforts to reach sustainable levels has been called a failure.[15]

An association of river commercial groups commissioned a study concluded that dam removal would jeopardize already fragile local and regional economies and that the needed train and trucking increase would require up to $2 billion in road and rail improvements.[16]

See also

References
  1. "Ice Harbor Dam brought big boats back to Snake River". Tri-City Herald. June 17, 1975. p. 26.
  2. "The Four Lower Snake River Dams". Bluefish.org. Retrieved 17 July 2010.
  3. "Ice Harbor Dam". Washington.edu. Retrieved 17 July 2010.
  4. "The Columbia River System Inside Story" (PDF). BPA.gov. pp. 14–15. Archived from the original (PDF) on 27 May 2010. Retrieved 17 July 2010.
  5. "Ice Harbor Dam". Washington Place Names database. Tacoma Public Library. Archived from the original on 2009-03-09. Retrieved 2009-03-06.
  6. "Ice Harbor is first step in taming of lower Snake". Lewiston Morning Tribune. July 16, 1961. p. 13.
  7. "United States Extreme Record Temperatures & Differences". Retrieved 2008-11-22.
  8. Markell, Joanna (February 10, 2022), "Washington officially has a new all-time maximum temperature record: 120 degrees", Yakima Herald-Republic
  9. Bruhl, Zach (2021-03-29). "U.S. Rep. Mike Simpson proposes removal of the four Lower Snake River dams". Retrieved 2022-07-18.
  10. "Will the Snake River's Dams Be the Next to Come Down?". 2021-03-21. Retrieved 2022-07-18.
  11. "Who Supports Lower Snake River Dam Removal?". Retrieved 2022-07-18.
  12. Leslie, Jacques (2019-10-10). "On the Northwest's Snake River, the Case for Dam Removal Grows". Retrieved 2022-07-18.
  13. "Some green groups oppose lower Snake River dam removal plan". 2021-03-27. Retrieved 2022-07-18.
  14. Flatt, Courtney (2021-05-14). "One Idea To Remove Snake River Dams May Be Dead In The Water As Inslee And Murray Say They Oppose It". Retrieved 2022-07-18.
  15. Geranios, Nicholas K (Associated Press) (2022-07-12). "White House: To help salmon, dams may need to be removed". ABC News. Retrieved 2022-07-18.
  16. Gruben, Mallory (The Daily News) (2022-07-12). "Study: Snake River dam removal would cost $2.3B, jeopardize regional economies". Retrieved 2022-07-18.
Wikimedia Commons has media related to Ice Harbor Lock and Dam.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.