Henty Dam

{{short description|Dam in West Coast, Tasmania, Australia}} {{Use dmy dates|date=April 2026}} {{Use Australian English|date=April 2026}} {{Infobox dam | name = Henty Dam | name_official = | image = | image_size = 240 | image_caption = | image_alt = | location_map = Tasmania | location_map_size = 240 | location_map_caption = Location of the dam in [[Tasmania]] | location_map_alt = | mapframe = yes | coordinates = {{coord|-41.8802071|145.549042|type:landmark_region:AU-TAS|display=it|format=dms}} | country = Australia | location = [[West Coast, Tasmania|West Coast]], [[Tasmania]] | purpose = P | status = O | construction_began = | opening = 1988 | demolished = | cost = | builder = | designed_by = | owner = | operator = [[Hydro Tasmania]] | dam_type = G | dam_crosses = [[Henty River]] | dam_height = {{cvt|20|m}} | dam_height_foundation = | dam_height_thalweg = | dam_length = {{cvt|120|m}} | dam_elevation_crest = | dam_width_crest = | dam_width_base = | dam_volume = {{cvt|12|e3m3}} | spillway_count = | spillway_type = [[Spillway#Types|Uncontrolled]] | spillway_length = | spillway_capacity = {{cvt|139|m3/s}} | spillway_volumetric_flow_rate = | res_name = Lake Henty | res_capacity_total = {{cvt|350|ML|acre.ft}} | res_capacity_active = | res_capacity_inactive = | res_catchment = {{cvt|18|km2}} | res_surface = {{cvt|7|ha}} | res_max_length = | res_max_width = | res_max_depth = | res_elevation = {{cvt|518|m}} {{AHD}} | res_tidal_range = | lower_dam_type = | lower_dam_crosses = | lower_dam_height_foundation = | lower_dam_height_thalweg = | lower_dam_length = | lower_dam_elevation_crest = | lower_dam_width_crest = | lower_dam_width_base = | lower_dam_volume = | lower_spillway_count = | lower_spillway_type = | lower_spillway_length = | lower_spillway_capacity = | lower_spillway_volumetric_flow_rate = | lower_res_name = | lower_res_capacity_total = | lower_res_capacity_active = | lower_res_capacity_inactive = | lower_res_catchment = | lower_res_surface = | lower_res_max_length = | lower_res_max_width = | lower_res_max_depth = | lower_res_elevation = | lower_res_tidal_range = | plant_name = | plant_coordinates =  | plant_operator = | plant_commission = | plant_decommission = | plant_type = | plant_hydraulic_head = | plant_turbines = | plant_pumpgenerators = | plant_pumps = | plant_capacity = | plant_capacity_factor = | plant_efficiency = | plant_storage_hours = | plant_annual_gen = | plant_annual_gen_year = | website = | extra = <ref name=ANCOLD/><ref name=mindat>{{cite web |url=https://www.mindat.org/feature-8189854.html |title=Henty Dam, West Coast, State of Tasmania, Australia |work=mindat.org |date= |access-date=18 April 2026 }}</ref> }} The '''Henty Dam''' is a small [[gravity dam]] across the [[Henty River]], located in the [[West Coast, Tasmania|West Coast]] region of [[Tasmania]], Australia. The dam was completed in 1988 and the resultant [[reservoir]], Lake Henty, established for the purpose of generating [[hydroelectricity]] as part of the proposed [[Anthony Power Development]], that did not proceed in full, as planned.<ref name=History>{{cite web |author1=de Villiers, Charmaine |author2=de Villiers, Steve |url=https://www.discovertullah.com.au/history |title=History: Anthony Power Scheme |work=Discover Tullah |date=2016 |access-date=18 April 2026 }}</ref>

== Overview == Completed in 1988 by the [[Hydro Tasmania|Hydro Electric Corporation (TAS)]], the concrete dam wall is {{convert|20|m}} high and {{convert|120|m}} long. When full, the reservoir has capacity of {{convert|350|ML|acre.ft|lk=on}} and covers {{convert|7|ha}}, drawn from a [[drainage basin|catchment area]] of {{convert|18|km2}}. The [[Spillway#Types|uncontrolled spillway]] has a flow capacity of {{convert|139|m3/s}}.<ref name=ANCOLD>{{cite web |title=Register of Large Dams Australia-2015 |date=January 2022 |access-date=2026-03-05 |url=https://ancold.org.au/information-resources/dams-information/ |work=[[ANCOLD]] |format=[[Microsoft Excel|Excel]]. Requires download. Row 231}}</ref>

The dam diverts water to Lake Plimsoll and, consequently, to the [[Tribute Power Station]].<ref name=History/><ref>{{cite web |url=http://www.hydro.com.au/energy/our-power-stations/pieman |title=Pieman |work=Energy |publisher=[[Hydro Tasmania]] |date= |access-date=4 July 2015}}</ref><ref>{{cite web |url=http://www.hydro.com.au/system/files/attachments/Tribute_Power_Station-Fact-Sheets.pdf |title=Tribute Power Station: Fact Sheet |work=[[Hydro Tasmania]] |date= |access-date=2026-04-17 |archive-url=https://web.archive.org/web/20150924033526/http://www.hydro.com.au/system/files/attachments/Tribute_Power_Station-Fact-Sheets.pdf |archive-date=2015-09-24 }}</ref>

== See also == {{stack|{{portal|Water|Australia}}}} * [[List of reservoirs and dams in Australia#Tasmania|List of reservoirs and dams in Tasmania]] * [[Henty Gold Mine]]

== References == {{reflist}}

[[Category:1988 establishments in Australia]] [[Category:Dam controversies]] [[Category:Dams completed in 1988]] [[Category:Gravity dams]] [[Category:Hydro Tasmania dams]] [[Category:West Coast Range]]