Happy Valley Reservoir

Happy Valley Reservoir

The Happy Valley Reservoir was built between 1892 and 1897. In addition to water from its reserve, the reservoir receives water from Mount Bold Reservoir (via the Clarendon Weir). The Happy Valley Water Treatment plant, which treats much of Adelaide’s drinking water, is located within the reservoir reserve.

Capacity: 12.6 gigalitres (one gigalitre is one billion litres), which would fill 6,300 Olympic swimming pools

Public access: No

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Total Happy Valley Reservoir level
  • 83
  • 80

Capacity, volume and rainfall levels across reservoirs supplying metropolitan Adelaide, compared to last month last year
Capacity (GL) Volume this week (GL) Volume this week (%) Volume this week last year (GL) Average Volume this month (GL) Rainfall this week (mm)
12.610.58310.110.50.00

  • Major faults

  • Reported

  • Adamson Av
  • Belair
  • 12/11/2019
  • Water Mains Leak
  • Last Updated: 12/11/2019 04:07 AM - We have a report of an incident in Belair and the water supply nearby may be impacted. Traffic management may be in place. Reference Number WO: 07205029.
  • See all major faults

  • Scheduled works

  • Underway
  • Lawrence Hargrav Way
  • Parafield
  • 12/11/2019
  • Temporary Supply Interruption
  • Estimated start time and water supply off: 15/11/2019 05:30 PM
    Estimated restore time and water supply back on: 15/11/2019 08:30 PM

    We’re improving your services and undertaking maintenance work in Parafield. Sometimes our crews need to temporarily interrupt the water supply to our customers and/or manage traffic while they are working. Temporary traffic management may remain in place until reinstatement of the impacted road is complete. We always aim to minimise inconvenience by restoring services as safely and quickly as we can.


  • See all scheduled works

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