| 词条 | Edgar Dam |
| 释义 |
| name = Edgar Dam | name_official = | image = | image_size = | image_caption = This non-hydroelectric dam helps retain water in Lake Pedder. | image_alt = | location_map = Australia Tasmania | location_map_size = 280 | location_map_caption = Location of the Edgar Dam in Tasmania | location_map_alt = | coordinates = {{coord|43|01|48|S|146|20|24|E|type:landmark_region:AU-TAS|display=inline,title}} | country = Australia | location = South West Tasmania | purpose = P | status = O | construction_began = | opening = {{start date|1973}} | demolished = | cost = | owner = Hydro Tasmania | operator = | dam_type = E | dam_crosses = Off stream | dam_height = {{convert|17|m}} | dam_height_foundation= | dam_height_thalweg = | dam_length = {{convert|460|m}} | dam_elevation_crest = | dam_width_crest = | dam_width_base = | dam_volume = {{convert|96|e3m3|abbr=on}} | spillway_count = 0 | spillway_type = | spillway_capacity = | res_name = Lake Pedder | res_capacity_total = {{Convert|2937930|ML|abbr=on}} | res_capacity_active = | res_capacity_inactive= | res_catchment = {{convert|734|km2|abbr=on}} | res_surface = {{Convert|241|km2|mi2|0|abbr=on}} | res_max_length = | res_max_width = | res_max_depth = {{Convert|43|m|ft|0|abbr=on}} | res_elevation = | res_tidal_range = | plant_name = | plant_coordinates = | plant_operator = | plant_commission = | plant_decommission = | plant_type = | plant_hydraulic_head = | plant_turbines = | plant_capacity = | plant_capacity_factor= | plant_annual_gen = | website = {{URL|hydro.com.au/energy/our-power-stations/gordon-pedder}} | extra = }} The Edgar Dam is an earthfill embankment saddle dam without a spillway, located offstream in the South West region of Tasmania, Australia. The impounded reservoir, also formed with the Scotts Peak Dam and the Serpentine Dam, is called Lake Pedder which flooded Lake Edgar, a naturally forming fault scarp pond. The dam was constructed in 1973 by the Hydro Electric Corporation (TAS) as part of the Gordon River Power Development Scheme for the purpose of generating hydro-electric power via the Gordon Power Station. Water from Lake Pedder is diverted to Lake Gordon (formed by the Gordon Dam) via the McPartlan Pass Canal.[1] Location and featuresThe Edgar Dam, together with the Scotts Peak Dam and the Serpentine Dam, are three major dams that form the headwaters for the Gordon River Power Development Scheme. The dam is located near Lake Pedder's most easterly point[2] in the upper reaches of the Huon River where the river descends from the Marsden Range and descends into what is now known as the Huon Basin. Also at the southern end of the Lake Pedder, the Scotts Peak Dam impounds the Huon River. At the northwestern end of the lake is impounded by the Serpentine Dam across the Serpentine River. The water in Lake Pedder provides around 40% of the water used in the Gordon Power Station. The water flows to Lake Gordon via McPartlan Canal.[1] Water from Lake Gordon then exits through the Gordon Dam. The Edgar Dam wall, constructed with {{convert|96|e3m3}} of earth core, is {{convert|17|m}} high and {{convert|460|m}} long. At 100% capacity the dam wall holds back {{convert|2937930|ML}} of water. The surface area of Lake Pedder is {{convert|241330|ha}} and the catchment area is {{convert|734|km2}}. The dam wall does not have a spillway.[3] The dam draws its name from the flooded Lake Edgar. Lake Edgar FaultThe Lake Edgar Fault is a {{convert|30|km|adj=on}} long north-south trending scarp that occurs within the boundary of the Southwest National Park. The scarp traverses the button grass of the Huon Plains and is notable because faulting resulted in the defeat of westerly flowing drainage and the consequent formation of the fault-bound sag pond of Lake Edgar.[4] In spite of a tremor measuring 3.2 on the Richter magnitude scale in January 2001 near the Lake Edgar fault, which runs adjacent to the Edgar Dam, the ability of the dam to cope with stresses associated with seismic activity. .[5][6][7][8][9] Hydro Tasmania is confident that the eventuality of the Edgar Dam being destroyed by an earthquake is an extremely remote possibility.{{says who?|date=October 2017}} See also{{stack|{{portal|Tasmania|Water|Energy|Environment}}}}
References1. ^1 {{cite web |url=http://www.hydro.com.au/energy/our-power-stations/gordon-pedder |title=Gordon - Pedder |work=Energy: Our power stations |publisher=Hydro Tasmania |date= |accessdate=21 June 2015 }} 2. ^{{cite web |url=http://www.hydro.com.au/node/858/edgar-dam-camp-ground |title=Edgar Dam camp ground |work=Community |publisher=Hydro Tasmania |date=2015 |accessdate=29 June 2015 }} 3. ^{{cite web|url=http://www.ancold.org.au/wp-content/uploads/2012/10/Dams-Australia-2010-v1.xls |format=Excel (requires download) |title=Register of Large Dams in Australia |publisher=Australian National Committee on Large Dams |year=2012 |accessdate=28 June 2015 |work=Dams information}} 4. ^{{cite web|url=http://www.ga.gov.au/corporate_data/69531/69531.pdf |title=Lake Edgar Earthquake |publisher=Geoscience Australia |date=22 June 2004 |accessdate=28 June 2015 }} 5. ^{{cite journal|url=http://www.lakepedder.org/resources/reflections/Reflections_9_Apr02.pdf |title=Dam failure |author=Taylor, Sam |publisher=The Lake Pedder Restoration Committee |journal=Reflections |number=9 |date=April 2002 |page=7 |accessdate=28 June 2015 |deadurl=yes |archiveurl=https://web.archive.org/web/20160326072226/http://lakepedder.org/resources/reflections/Reflections_9_Apr02.pdf |archivedate=26 March 2016 |df=dmy }} 6. ^{{cite web |url=http://www.mrt.tas.gov.au/portal/earthquakes |title=Earthquakes |work=Mineral Resources Tasmania, Department of State Growth |publisher=Government of Tasmania |date= |accessdate=29 June 2015 }} 7. ^{{Citation | author1=McCue, K | author2=Boreham, B | author3=van Dissen, R | author4=Gibson, G | author5=Jensen, V | author6=McKavanagh, B | title=A paleoseismology case study: the Lake Edgar Fault Scarp in Tasmania | publication-date=1996 | publisher=Geological Society of Australia | url=http://trove.nla.gov.au/work/172049997 | accessdate=30 October 2017 }} 8. ^{{Citation | author1=McCue, K | author2=Van Dissen, R | author3=Gibson, G | author4=Jensen, V | author5=Boreham, B | title=The Lake Edgar Fault: an active fault in Southwestern Tasmania, Australia, with repeated displacement in the Quaternary | publication-date=2003 | publisher=Istituto Nazionale di Geofisics e Vulcanologia | url=http://trove.nla.gov.au/work/13277968 | accessdate=30 October 2017 }} 9. ^{{Citation | author1=Clark, D | author2=Cupper, M | author3=Sandiford, M | author4=Kiernan, K | title=Style and timing of late Quaternary faulting on the Lake Edgar fault, southwest Tasmania, Australia: Implications for hazard assessment in intracratonic areas | publication-date=2011 | url=http://trove.nla.gov.au/work/156591728 | accessdate=30 October 2017 }} Further reading
6 : South West Tasmania|Hydro Tasmania dams|Embankment dams|Dams completed in 1973|Infrastructure in Australia|Gordon River power development scheme |
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