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

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

Brogo Dam

Brogo dam supplies water to irrigate pastures for the Bega Valley’s dairy industry and supplies towns and farmers along the Brogo and Bega rivers.

Carcoar

Carcoar Dam

The main purpose of the dam is to supply irrigation, stock and household needs in the Belubula Valley.

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

Copeton Dam

The main purpose of the dam is to supply irrigation, stock and household needs in the Gwydir Valley, and environmental flows to the Gwydir Wetlands.

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

Glenbawn Dam

The dam has one of the largest rock-fill embankment walls in Australia, 100 metres high and 1.1 kilometres long.

Glennies Creek

Glennies Creek Dam

Glennies Creek operates with nearby Glenbawn Dam to supply water for irrigation, environmental flows, stock, industry and household needs in the Hunter Valley.

KeepIt

Keepit Dam

The main purpose of the dam is to supply irrigation, stock and household needs in the Namoi Valley.

Lostock

Lostock Dam

Lostock Dam supplies water for irrigation, environmental flows, stock, industry and household needs in the Paterson Valley.

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

Oberon Dam

Oberon Dam is part of the Fish River water supply, the only scheme in eastern Australian to transfer western flowing water east of the Great Dividing Range.

Pindari

Pindari Dam

Pindari Dam operates with Queensland’s Glenlyon Dam to meet irrigation, stock and household needs in the Border Rivers valley.

Rydal

Rydal Dam

Conceived in the 1940s to supply water to the shale oil industry, the scheme now supplies water for the power station at Mount Piper and other villages in the area

Split Rock

Split Rock Dam

Split Rock operates with Keepit Dam to supply water for irrigation, environmental flows, stock, industry and household needs in the Namoi Valley.

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.

Toonumbah

Toonumbar Dam

Toonumbar dam helps irrigate the Richmond Valley and supplies water to towns and farmers along Iron Pot and Eden creeks and the Richmond River.

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

Windamere Dam

Windamere dam supplies water for irrigation, stock and household needs in the Cudgegong and Macquarie valleys, as well as providing flood mitigation and environmental flows.

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

Wyangala Dam

The second major dam built for irrigation in NSW when construction began in 1928, Wyangala Dam helped drive the economic development of the Lachlan Valley as a major food producing region.

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.

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51.5
Wednesday 17 July
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1,330,660 ML
2,581,850 ML
8,326 ML
1,190 ML
-9,508 ML
Wednesday 17 July