Our dam histories

Our dam histories

We manage these major water supply dams - each with their own unique and fascinating story.

Click to find out more about the history behind:

Avon Dam

Avon is one of four dams that make up the Upper Nepean water supply scheme south of Sydney on the Illawarra Plateau.


Blowering Dam

Famous as the site of the world water speed record in 1978, Blowering Dam is one of the biggest dams in NSW.


Brogo Dam


Carcoar Dam

Cataract Dam

Cataract Dam is one of the oldest and most picturesque dams in Sydney. At the time of its construction from 1902 to 1907, Cataract Dam was the biggest engineering project in Australia and the fourth biggest in the world.


Copeton Dam

Cordeaux Dam

Cordeaux is one of four dams that make up the Upper Nepean water supply scheme south of Sydney on the Illawarra Plateau. Remarkable for its Egyptian inspired architecture, a visit to Cordeaux Dam is like stepping back in time.

Fitzroy Falls Reservoir

Fitzroy Falls and Wingecarribee reservoirs have relatively small catchment areas totalling only 70 square kilometres. Water pumped from the Shoalhaven Scheme is mostly collected from the Tallowa Dam catchment of 5,750 square kilometres.


Glenbawn Dam

Glennies Creek

Glennies Creek Dam


Keepit Dam


Lostock Dam

Nepean Dam

Nepean Dam was the last and smallest of the four dams constructed to collect water from the Illawarra Plateau south of Sydney.


Oberon Dam


Pindari Dam


Rydal Dam

Split Rock

Split Rock Dam

Tallowa Dam

Tallowa Dam is the centrepiece of the Shoalhaven system which provides water to the Shoalhaven and Southern Highlands regions, and a back-up to the Sydney and Illawarra water supplies.


Toonumbar Dam

Warragamba Dam

Warragamba Dam supplies water to more than 3.7 million people living in Sydney and the lower Blue Mountains. Just a one hour drive from Sydney's CBD, the dam is a popular place to visit and picnic.


Windamere Dam

Wingecarribee Reservoir

The reservoir supplies the nearby towns of Bowral and Mittagong, and is part of the Shoalhaven Scheme which during drought also tops up Sydney and Illawarra water supplies. Goulburn can also be supplied with water from Wingecarribee Reservoir.

Woronora Dam

Woronora Dam supplies water to the Sutherland Shire in Sydney's south, and to the northern suburbs of Wollongong. The grounds are unusual in retaining workers' cottages and old platforms, plant and machinery used in the dam's construction in the 1930s.


Wyangala Dam

For the listing on the heritage and conservation register see: Cataract Dam - Cordeaux Dam - Medlow Dam - Nepean Dam - Woodford Dam - Woronora Dam.

You can also find on the register other water supply infrastructure: Woronora-Penshurst Pipeline or the Upper Nepean Scheme and Warragamba Supply Scheme.


Saturday 25 May
1,387,176 ML
2,581,850 ML
10,137 ML
1,449 ML
-10,313 ML
Saturday 25 May