Overview

Burrendong Dam is a major embankment reservoir on the Macquarie River in central western New South Wales, Australia. Located upriver of the town of Wellington, the dam impounds flows from the Macquarie and Cudgegong rivers and Meroo Creek to form Lake Burrendong. Constructed in the mid-20th century, the project was developed to improve regional water security and to reduce flood risk for downstream communities.

Structure and hydrology

The dam is an embankment-style wall constructed with rockfill and a central clay core and is fitted with gated spillways to control release rates. The reservoir stores runoff from a broad catchment and provides regulated water releases to meet seasonal demands. Through controlled releases managers aim to balance irrigation needs, town water supplies and flood mitigation while maintaining river health downstream.

Construction, management and operation

Built as part of a regional program of water infrastructure, the dam is owned and operated by state water authorities and managed under policies that consider multiple uses. Operation includes scheduled releases for irrigation, occasional high-flow releases during flood events, and targeted environmental flow deliveries to support ecosystems. Maintenance and upgrades over time address safety, spillway capacity and operational efficiency.

Uses and facilities

  • Irrigation and water supply: The dam stores water for agricultural irrigation and municipal supply, supporting farms and local towns across the central west.
  • Hydroelectric generation: A small-scale hydro-electric plant at the site can produce electricity when water is released, contributing to local energy needs.
  • Recreation and tourism: Lake Burrendong attracts anglers, boaters and campers. The lake and surrounding reserve provide picnic areas, camping grounds, boat ramps and vantage points for birdwatching and nature appreciation, supporting regional tourism.
  • Community and access: Visitors can reach recreational areas from nearby roads and towns; local councils and park managers provide basic visitor information and facilities.

Ecology and environment

Lake Burrendong supports populations of native fish such as Murray cod and golden perch (yellowbelly), which are important for both conservation and recreational angling. The reservoir and its foreshore also provide habitat for waterbirds and native vegetation. At the same time, the regulation of flows changes natural seasonal patterns and can affect downstream ecosystems; therefore environmental flow releases are used to reduce adverse impacts and to support riverine habitats.

Regional significance and cultural context

The dam is a key piece of infrastructure for the central west region, underpinning agricultural production, local water security and leisure activities. It also sits on land with cultural significance to local Aboriginal communities; contemporary management increasingly recognises the importance of engaging with Traditional Owners on land and water matters. For more detailed information on operations, recreational services and local programs consult the official pages and local authorities via links such as the dam information page and regional visitor resources (irrigation and water use, official dam overview, Wellington community).