Mount Bold Reservoir

Mount Bold Reservoir

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 717ft in length at the crest. The spillway is 227ft long, 12 ft deep and 135 ft above the stream bed.

Mount Bold's height above sea level is 795 ft 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.

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

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Total Mount Bold Reservoir level
  • 79
  • 83



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

  • Major faults

  • Reported

  • HMAS Australia Road
  • Henley Beach South
  • 18/12/2017
  • Water Off
  • 18/12/2017 3:26 PM - We are on-site responding to an incident in Henley Beach South. Our crews may remain on site to perform further work. Traffic restrictions may also apply. Reference Number WO:06151098

  • See all major faults

  • Scheduled works

  • Underway
  • Port Rd
  • Woodville
  • 18/12/2017
  • Supply Interruption
  • Estimated start time (water off): 20/12/2017 10:00 AM
    Estimated restore time (water back on): 20/12/2017 02:00 PM

    We’re committed to improving your services and are undertaking maintenance work in Woodville. Water supply in the surrounding area may be impacted during the above times. Traffic restrictions may also apply.

  • See all scheduled works