Hope Valley Dam

{{Short description|Dam and reservoir in Adelaide, South Australia}} {{Use Australian English|date=September 2014}} {{Use dmy dates|date=January 2021}} {{Infobox dam | name = Hope Valley Dam | name_official = | image = Hope Valley Reservoir 20251031-112508.jpg | image_size = 250 | image_caption = A shelter on the dam wall, 2025 | image_alt = | location_map = Australia Greater Adelaide | location_map_size = 250 | location_map_caption = | location_map_alt = Location of the dam in Adelaide | mapframe = yes | coordinates = {{coord|34.85389|S|138.681407|E|region:AU-SA_type:landmark_source:GNS-enwiki|display=it|format=dms}} | country = Australia | location = Adelaide, South Australia | purpose = W | status = O | construction_began = | opening = 1873 | demolished = | cost = | builder = G & RE Fry | designed_by = | owner = Government of South Australia | operator = SA Water | dam_type = F | dam_crosses = ''Off-stream'' | dam_height_foundation = {{cvt|22|m}} | dam_height_thalweg = | dam_length = {{cvt|765|m}} | dam_elevation_crest = | dam_width_crest = | dam_width_base = | dam_volume = {{cvt|236|e3m3}} | spillway_count = | spillway_type = Uncontrolled | spillway_length = | spillway_capacity = {{cvt|5|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 = '''Hope Valley Reservoir''' | res_capacity_total = {{cvt|3.63|GL|acre.ft}} | res_capacity_active = {{cvt|2.84|GL|acre.ft}}{{cn|date=April 2026}} | res_capacity_inactive = | res_catchment = {{cvt|3|km2}} | res_surface = {{cvt|60.3|ha}} | res_max_length = | res_max_width = | res_max_depth = | res_elevation = {{cvt|102|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_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 '''Hope Valley Dam''' is an off-stream earth-filled embankment dam, located in {{SAcity|Hope Valley}}, a suburb of Adelaide, South Australia. Completed in 1873, the resultant reservoir, the '''Hope Valley Reservoir''', was established to supply potable water for the city of Adelaide.<ref name="SA Water">{{cite web |url=http://www.sawater.com.au/SAWater/Education/OurWaterSystems/Water+Storage+(Reservoirs).htm |work=SA Water |access-date=12 January 2010 |title=Water Storage (Reservoirs) |date=10 November 2009 |url-status=dead |archive-url=https://web.archive.org/web/20100124153923/http://www.sawater.com.au/SAWater/Education/OurWaterSystems/Water%2BStorage%2B%28Reservoirs%29.htm |archive-date=24 January 2010 }}</ref>

== Overview == When completed in 1873, it became the second reservoir constructed in Adelaide and remains the oldest still in use in South Australia.<ref name="Parliament">{{cite web|url=http://www.parliament.sa.gov.au/NR/rdonlyres/1ECB664D-6F21-4F2E-927B-472BFE03B700/3030/finalreport.pdf |title= Hope Valley Reservoir rehabilitation project (final report)|date=August 2000|accessdate=12 January 2010|author=Public Works Committee|publisher=Parliament of South Australia |archiveurl=https://web.archive.org/web/20070904115244/http://www.parliament.sa.gov.au/NR/rdonlyres/1ECB664D-6F21-4F2E-927B-472BFE03B700/3030/finalreport.pdf |archivedate=2007-09-04}}</ref> [[File:Channel which takes Millbrook Reservoir water to Hope Valley Reservoir(GN04289).jpg|thumb|left|The off-stream channel which connects the Millbrook Reservoir with the Hope Valley Reservoir, 1920]] The earth-filled dam wall is {{convert|22|m}} high and {{convert|765|m}} long. When full, the reservoir has capacity of {{convert|3630|ML|acre.ft|lk=on}} and covers {{convert|60.3|ha}}, drawn from a relatively-small catchment area of {{convert|3|km2}}. The uncontrolled spillway has a flow capacity of {{convert|5|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=Excel. Requires download. Row 236}}</ref>

The reservoir is fed by water transferred from the River Torrens via a tunnel and aqueduct. The river is also used to transfer water from the Kangaroo Creek and Millbrook reservoirs.<ref name="SA Water" />

In December 2020, the reservoir was opened to the public for the first time for activities including walking, running, cycling and picnicking.<ref>{{cite news |title=South Australia's Hope Valley Reservoir now open to the public - Australasian Leisure Management |url=https://www.ausleisure.com.au/news/south-australias-hope-valley-reservoir-now-open-to-public/ |access-date=22 February 2022 |work=www.ausleisure.com.au |date=17 December 2020}}</ref>

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

==References== {{reflist}}

Category:1873 establishments in Australia Category:Buildings and structures in Adelaide Category:Dams completed in 1873 Category:Dams in South Australia Category:Earth-filled dams Category:Reservoirs in South Australia