Cataract Dam
The Cataract Dam is a heritage-listed dam in Cataract (formerly Appin), New South Wales, Australia, provides water to the Macarthur and Illawarra regions, the Wollondilly Shire, and metropolitan Sydney. It is one of four dams and weirs in the catchment of the Upper Nepean Scheme. Completed in 1907 under the supervision of Ernest Macartney de Burgh, the dam is currently owned by Water NSW, an agency of the Government of New South Wales. The dam was listed on the NSW State Heritage Register on 18 November 1999.
| Cataract Dam | |
|---|---|
Cataract Dam wall | |
Location in New South Wales | |
| Country | Australia |
| Location | Cataract Road, Cataract, New South Wales |
| Coordinates | 34°15′56″S 150°48′11″E |
| Purpose | Potable water supply |
| Status | Operational |
| Construction began | 1902 |
| Opening date | 1907 |
| Construction cost | A£329,136 |
| Built by | Public Works Department |
| Designed by | L A B Wade J J C Bradfield |
| Operator(s) | Sydney Catchment Authority |
| Dam and spillways | |
| Type of dam | Gravity dam |
| Impounds | Cataract River |
| Height | 56 m (184 ft) |
| Length | 247 m (810 ft) |
| Dam volume | 112×103 m3 (4.0×106 cu ft) |
| Spillway type | Uncontrolled |
| Spillway capacity | 1,550 m3/s (55,000 cu ft/s) |
| Reservoir | |
| Total capacity | 94,300 ML (2.07×1010 imp gal; 2.49×1010 US gal) |
| Catchment area | 130 km2 (50 sq mi) |
| Surface area | 851 ha (2,100 acres) |
| Website Cataract Dam at Sydney Catchment Authority | |
New South Wales Heritage Register | |
| Official name | Cataract Dam |
| Type | State heritage (built) |
| Criteria | a., b., c., d., e., f., g. |
| Designated | 18 November 1999 |
| Reference no. | 01359 |
| Type | Water Supply Reservoir/ Dam |
| Category | Utilities – Water |
| Builders | Department of Public Works |
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