Mount Bold Reservoir

Mount Bold Reservoir

Mount Bold Reservoir has reopened to the public after a temporary closure during planned safety improvement works on site. We appreciate the community’s patience while we undertook this important project.

Mount Bold is the largest reservoir in South Australia. Its construction began in 1932 and continued until 1938. It was opened on Nov 11, 1938 by His Excellency the Governor, Major-General Sir Winston Joseph Dugan.

The reservoir is not directly connected to the reticulation system. Water is released as required to maintain an adequate level at the Clarendon Weir and from that point, water is diverted to Happy Valley.

Between 1938 and 1961, Mount Bold also supplied its own electricity through a small hydro-electric plant.

Mount Bold's dam is 717 feet in length at the crest. The spillway is 227ft long, 12 feet deep and 135 feet above the stream bed.

Mount Bold's height above sea level is 795 feet and the water is dammed back to a distance of 6.5 miles

Capacity: 46,545 megalitres

If this reservoir supplied the whole state, how long would this last? About 79 days

Area of water spread: 308 hectares

Public access: Yes. Access to the dam wall

Visiting hours: This reservoir is open 9.00 am – 4.00 pm, year-round *refer to top of page for current opening details

Current reservoir levels: For current volume please click on the map below. Please note Mount Bold is closed to the public during ‘pre-release’ events – when the storage is at capacity and water is released to mitigate any flood and safety risks – as this water blocks the normal access route.

An archive photograph of weirs at Mount Bold

Skip to data table

Total Mount Bold Reservoir level
  • 43
  • 74

 

Key

Metro ReservoirMetro Reservoir
Regional ReservoirRegional Reservoir
Waste Water Treatment PlantWaste Water Treatment Plant
Water Treatment PlantWater Treatment Plant
Desalination PlantDesalination Plant
Water PipelineWater Pipeline

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)
46.5204334.622.40.00

  • Major faults

  • Underway

  • Mcarthur Av
  • Plympton
  • 18/01/2019
  • Water Supply On
  • 19/01/2019 01:42 AM - We are attending to an incident in Plympton with no interruption to the water supply. The safety of our crews and customers comes first, and we always aim to minimise inconvenience by restoring services as quickly as we can. Reference Number WO: 06755851.
  • See all major faults

  • Scheduled works

  • Underway
  • Hog Bay Rd
  • Cygnet River
  • 20/01/2019
  • Temporary Supply Interruption
  • Estimated start time and water supply off: 22/01/2019 09:00 AM
    Estimated restore time and water supply back on: 22/01/2019 04:00 PM

    We’re improving your services and undertaking maintenance work in Cygnet River. 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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