Barossa Reservoir

Barossa Reservoir

The Barossa Reservoir was built between 1899 and 1902 and is now a popular tourist site.

A unique feature of the reservoir is the unusual acoustic phenomenon created by the shape and location of the dam. Sounds and voices travel along the curved length of the dam wall and this has led to it being named the "Whispering Wall".

The reservoir wall, 8 miles from Gawler, was built on a new principle, curved against the pressure of the water it was to impound. At 94 feet it was the highest arched-concrete dam in Australia, arousing the interest of overseas bodies including the Institution of Civil Engineers, London.

By January 1902 the locking-bar steel main connecting the reservoir with the Gawler Tank was supplying the town, and extensions to nearby country lands west of Gawler were under way.

Capacity: 4515 megalitres.

If this reservoir supplied the whole state, how long would this last? Seven days.

Area of water spread: 62 hectares.

Public access: Yes. Access to the dam wall (Whispering Wall), toilets, disability access, car park and picnic areas.

Visiting Hours: 8.00 am – 5.00 pm (standard time); 8.00 am – 6.00 pm (daylight saving time).

Current reservoir capacity: For current volume please click on the map below.

View over the Barossa reservoir, 1979

Skip to data table

Total Barossa Reservoir level
  • 91
  • 93



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)

  • Major faults

  • Resolved

  • Soutchak St
  • Fairview Park
  • 18/12/2017
  • Water On
  • 18/12/2017 10:47 AM - We are on-site responding to an incident in Fairview Park. Water should now be back on. Our crews may remain on site to perform further work. Traffic restrictions may also apply. Reference Number WO: 06151091.
  • See all major faults

  • Scheduled works

  • Underway
  • Cortina Av
  • Holden Hill
  • 18/12/2017
  • Supply Interruption
  • Estimated start time (water off): 18/12/2017 09:00 AM
    Estimated restore time (water back on): 18/12/2017 04:00 PM

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

  • See all scheduled works