Middle River Dam

{{short description|Dam and reservoir in South Australia}} {{Use dmy dates|date=April 2016}} {{Use Australian English|date= April 2016}} {{Infobox dam | name = Middle River Dam | name_official = | image = | image_size = | image_caption = | image_alt = | location_map = South Australia | location_map_size = | location_map_caption = Location of the dam<br/>in [[South Australia]] | location_map_alt = | mapframe =  | coordinates = {{coord|-35.719|137.096|type:landmark_region:AU-SA|format=dms|display=it}} | country = | location = [[Kangaroo Island]], [[South Australia]] | purpose = W | status = O | construction_began = | opening = 1968 | demolished = | cost = | builder = | designed_by = | owner = [[Government of South Australia]] | operator = [[SA Water]] | dam_type = G | dam_crosses = [[Middle River (South Australia)|Middle River]] | dam_height_foundation = {{cvt|20|m}} | dam_height_thalweg = | dam_length = {{cvt|152|m}} | dam_elevation_crest = | dam_width_crest = | dam_width_base = | dam_volume = {{cvt|7|e3m3}} | spillway_count = | spillway_type = [[Spillway#Types|Uncontrolled]] | spillway_length = | spillway_capacity = {{cvt|245|m3/s}} | spillway_volumetric_flow_rate = | spillway_type2 = | spillway_length2 = | spillway_capacity2 = | spillway_volumetric_flow_rate2 = | spillway_type3 = | spillway_length3 = | spillway_capacity3 = | spillway_volumetric_flow_rate3 = | res_name = Middle River Reservoir | res_capacity_total = {{cvt|540|ML|acre.ft}} | res_capacity_active = {{cvt|470|ML|acre.ft}} | res_capacity_inactive = | res_catchment = {{cvt|101|km2}} | res_surface = {{cvt|12.7|ha}} | res_max_length = | res_max_width = | res_max_depth = | res_elevation = | 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_spillway_type2 = | lower_spillway_length2 = | lower_spillway_capacity2 = | lower_spillway_volumetric_flow_rate2 = | lower_spillway_type3 = | lower_spillway_length3 = | lower_spillway_capacity3 = | lower_spillway_volumetric_flow_rate3 = | 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 = }} The '''Middle River Dam''' is a [[gravity dam]] across the [[Middle River (South Australia)|Middle River]], located on the north of [[Kangaroo Island]] in [[South Australia]]. Completed in 1968, its resultant [[reservoir]], the '''Middle River Reservoir''', provides [[potable water]] for the island community.

== Overview == Construction of Middle River Dam was started in response to a doubling of the population on Kangaroo Island following [[World War II]].<ref name="SA Water">{{cite web|title=Middle River Reservoir|url=https://www.sawater.com.au/community-and-environment/our-water-and-sewerage-systems/water-sources/reservoir-data/middle-river-reservoir|website=South Australian Water Corporation|accessdate=26 March 2016}}</ref> The reservoir supplies water to {{SAcity|Kingscote}}, {{SAcity|Brownlow KI}} and {{SAcity|Parndana}}.<ref name="SA Water2">{{cite book|title=SA Water's Long Term Plan for Kangaroo Island (Including the Middle River and Penneshaw Water Supply Systems)|date=2009|publisher=South Australian Water Corporation |page=32|url=http://www.pay.sawater.sa.gov.au/NR/rdonlyres/E7057912-ADA8-4A86-B119-0560B66D72AA/0/FinalSAWaterLongTermPlanReportKangarooIsland.pdf|accessdate=21 April 2016|archiveurl=https://web.archive.org/web/20110226201600/http://pay.sawater.sa.gov.au/NR/rdonlyres/E7057912-ADA8-4A86-B119-0560B66D72AA/0/FinalSAWaterLongTermPlanReportKangarooIsland.pdf|archivedate=26 February 2011}}</ref>

The concrete dam wall is {{convert|20|m}} high and {{convert|152|m}} long. When full, the reservoir has capacity of {{convert|470|ML|acre.ft|lk=on}} and covers {{convert|12.7|ha}}, drawn from a [[drainage basin|catchment area]] of approximately {{convert|101|km2}}.<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 348}}</ref><ref name="SA Water2" /><ref name=PLB>{{cite web |title=Search result for "Middle River Dam (Dam)" (Record no. SA0044610) with the following layers selected - "Suburbs and Localities" and " Place names (gazetteer)" |url=http://maps.sa.gov.au/plb/# |work=Property Location Browser |publisher=Government of South Australia |access-date=15 September 2016 |url-status=dead |archive-url=https://web.archive.org/web/20161012010923/http://maps.sa.gov.au/plb/ |archive-date=12 October 2016 }}</ref>

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

==References== {{reflist}}

[[Category:1968 establishments in Australia]] [[Category:Dams completed in 1968]] [[Category:Dams in South Australia]] [[Category:Gravity dams]] [[Category:Kangaroo Island]] [[Category:Reservoirs in South Australia]]