| 词条 | North Dam |
| 释义 |
| name = North Dam | image = North Dam.png | image_caption = | location_map = USA West | location_map_size = | location_map_caption = Location of North Dam in the western U.S. | location_map_alt = | coordinates = {{coord|47|56|27.03|N|119|1|2.66|W|type:landmark|display=inline,title}} | dam_crosses = Grand Coulee | country = United States | location = Grant County, Washington | operator = United States Bureau of Reclamation | dam_length = {{convert|1450|ft|m|sigfig=3|abbr=on}}[1] | dam_height = {{convert|145|ft|m|abbr=on}}[1] | dam_elevation_crest = {{convert|1580|ft|m|abbr=on}} | dam_type = Embankment, earth-fill | dam_width_base = | construction_began = 1946[3] | opening = 1951[2] | cost = | res_name = Banks Lake | res_capacity_total = {{convert|1275000|acre.ft|km3|abbr=on}}[5] | res_capacity_active = {{convert|715000|acre.ft|km3|abbr=on}} | res_catchment = {{convert|278.3|sqmi|km2|abbr=on}}[3] | res_surface = {{convert|27000|acre|km2|sigfig=3|abbr=on}} | res_elevation = {{convert|1570|ft|m|abbr=on}} | extra = }}North Dam is an earth-fill embankment dam near the town of Grand Coulee in Grant County, Washington, United States. Construction of the dam began in 1946 and it was completed in 1951.[2] Along with Dry Falls Dam about {{Convert|22|mi|km|abbr=on}} to the southeast, North Dam creates the reservoir Banks Lake within the ancient Grand Coulee riverbed. The lake serves as the equalizer reservoir of the Columbia Basin Project. Near the North Dam's left abutment is the entrance to the feeder canal of the project. The canal serves to either deliver water to the Pump-generating plant at Grand Coulee Dam or return water to Banks Lake from the same pumped-storage plant.[4] The North Dam, near the town of Grand Coulee, has a maximum height of {{convert|145|ft|m}} and a crest length of {{convert|1,400|ft|m}}.[5] Crest elevation of both dams is {{convert|1580|ft|m}}, and the maximum water level in Banks Lake is elevation {{convert|1570|ft|m}}. Both North and Dry Falls dams have {{convert|10|ft|m}} of freeboard for protection against wave action due to high winds. External links
References1. ^1 {{cite book| title=The Story of the Columbia Basin Project| location=Washington D.C.| publisher=United States Government Printing Office| page=59| date=1964| accessdate=2015-01-23}} 2. ^1 2 {{cite web|url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=North+Dam&groupName=General| title=North Dam: General| author=United States Bureau of Reclamation| date=2012-06-21| accessdate=2015-01-23}} 3. ^1 {{cite web|url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Dry+Falls+Dam&groupName=Hydraulics+%26+Hydrology| title=Dry Falls Dam: Hydraulics and Hydrology| author=United States Bureau of Reclamation| date=2012-05-17| accessdate=2015-01-23}} 4. ^{{cite web|title=North Dam - Overview|url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=North+Dam&groupName=Overview|publisher=U.S. Bureau of Reclamation|accessdate=24 January 2015}} 5. ^ Draft Environmental Statement, Columbia Basin Project, Washington; Columbia Basin Project, Ephrata, Washington; Department of the Interior, (INT DES-75-3), Bureau of Reclamation, Department of the Interior; Washington, D.C.; 1975 7 : Dams in Washington (state)|Buildings and structures in Grant County, Washington|United States Bureau of Reclamation dams|Dams completed in 1951|Earth-filled dams|1951 establishments in Washington (state)|Dams in the Columbia Basin |
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