# Catagunya Dam

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Catagunya_Dam
> Markdown URL: https://mediated.wiki/source/Catagunya_Dam.md
> Source: https://en.wikipedia.org/wiki/Catagunya_Dam
> Source revision: 1353969082
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Dam and hydroelectric power station in  Tasmania, Australia

Dam in Central Highlands Tasmania

Catagunya Dam Interactive map of Catagunya Dam Country Australia Location Central Highlands Tasmania Coordinates 42°26′24″S 146°35′24″E / 42.44000°S 146.59000°E / -42.44000; 146.59000 Purpose Power Status Operational Opening date 1962 (1962) Owner Hydro Tasmania Dam and spillways Type of dam Gravity dam Impounds River Derwent Height 49 m (161 ft) Length 282 m (925 ft) Dam volume 92×10^3 m3 (3.2×10^6 cu ft) Spillways 1 Spillway type Uncontrolled Spillway capacity 3,594 m3/s (126,900 cu ft/s) Reservoir Creates Lake Catagunya Total capacity 25,640 ML (20,790 acre⋅ft) Catchment area 2,713 km2 (1,047 sq mi) Surface area 21.9 ha (54 acres) Catagunya Power Station Coordinates 42°27′00″S 146°35′24″E / 42.45000°S 146.59000°E / -42.45000; 146.59000 Operator Hydro Tasmania Commission date 1960 (1960) Type Run-of-the-river Hydraulic head 44 m (144 ft) Turbines 2 x 25 MW (34,000 hp) Boving Francis-type turbines Installed capacity 48 MW (64,000 hp) Capacity factor 0.8 Annual generation 237 GWh (850 TJ) Website hydro.com.au [1]

The **Catagunya Dam** is a [gravity dam](/source/Gravity_dam) across the [Lower River Derwent](/source/River_Derwent_(Tasmania)), located in the [Central Highlands](/source/Central_Highlands_(Tasmania)) region of [Tasmania](/source/Tasmania), Australia. Completed in 1962, the resultant [reservoir](/source/Reservoir), Lake Catagunya, was established for the purpose of generating [hydroelectricity](/source/Hydroelectricity) via the adjacent **Catagunya Power Station**, a [run-of-the-river](/source/Run-of-the-river_hydroelectricity) hydroelectric [power station](/source/Power_station). Both the dam and the power station are owned and operated by [Hydro Tasmania](/source/Hydro_Tasmania).[2]

## Dam overview

Built by the [Hydro Electric Corporation (TAS)](/source/Hydro_Tasmania), the concrete dam wall is 49 metres (161 ft) high and 282 metres (925 ft) long. When full, Lake Catagunya has capacity of 25,640 [megalitres](/source/Megalitre) (20,790 [acre⋅ft](/source/Acre-foot)) and covers 219 hectares (540 acres), drawn from a [catchment area](/source/Drainage_basin) of 2,713 square kilometres (1,047 sq mi). The [uncontrolled spillway](/source/Spillway#Types) has a flow capacity of 3,594 cubic metres per second (126,900 cu ft/s).[1]

The dam received a Historic Engineering Marker from [Engineers Australia](/source/Engineers_Australia) as part of its [Engineering Heritage Recognition Program](/source/Engineers_Australia#Engineering_Heritage_Recognition_Program).[3]

## Hydroelectric power station

Part of the [Derwent](/source/River_Derwent_(Tasmania)) scheme that comprises eleven hydroelectric power stations, the Catagunya Power Station is the seventh power station in the scheme and the third power station in the lower run-of-river system. The power station is located above ground, below Lake Catagunya. Water from the Derwent from Wayatinah Power Station and spill from Wayatinah Dam flows into Lake Catagunya. Water in the lake is diverted by a flume at the dam to the radial gates. It then descends 49 metres (161 ft) through two steel [penstocks](/source/Penstocks) to the power station.[2][4]

The power station was commissioned in 1962 by the Hydro Electric Corporation and the station has two 25-[megawatt](/source/Megawatt) (34×10^3 [hp](/source/Horsepower)) Boving [Francis-type](/source/Francis_turbine) [turbines](/source/Water_turbine), with a combined generating capacity of 48 megawatts (64,000 hp) of electricity. Within the station building, each turbine has a semi-embedded spiral casing, and water flow is controlled via twin radial gates installed at the entrance to each [penstock](/source/Penstock) and designed to cut off full flow. No inlet valves are installed in the station. The station output, estimated to be 237 [gigawatt-hours](/source/Kilowatt-hour) (850 [TJ](/source/Terajoule)) annually,[1] is fed to [TasNetworks](/source/TasNetworks)' transmission grid via two 11 k[V](/source/Voltage)/220 kV [ASEA](/source/ASEA) generator transformers to the outdoor switchyard.[2]

## See also

- [Renewable energy portal](https://en.wikipedia.org/wiki/Portal:Renewable_energy)
- [Australia portal](https://en.wikipedia.org/wiki/Portal:Australia)
- [Water portal](https://en.wikipedia.org/wiki/Portal:Water)

- [List of power stations in Tasmania](/source/List_of_power_stations_in_Tasmania)

- [List of reservoirs and dams in Tasmania](/source/List_of_reservoirs_and_dams_in_Australia#Tasmania)

- [List of run-of-the-river hydroelectric power stations](/source/List_of_run-of-the-river_hydroelectric_power_stations)

## References

1. ^ [***a***](#cite_ref-ANCOLD_1-0) [***b***](#cite_ref-ANCOLD_1-1) [***c***](#cite_ref-ANCOLD_1-2) ["Register of Large Dams Australia-2015"](https://ancold.org.au/information-resources/dams-information/) ([Excel](/source/Microsoft_Excel). Requires download. Row 95). *[ANCOLD](/source/ANCOLD)*. January 2022. Retrieved 5 March 2026.

1. ^ [***a***](#cite_ref-hydrotech_2-0) [***b***](#cite_ref-hydrotech_2-1) [***c***](#cite_ref-hydrotech_2-2) ["Catagunya Power Station Fact Sheet: Technical fact sheet"](https://www.hydro.com.au/docs/default-source/clean-energy/our-power-stations/power-station-fact-sheets/catagunya-power-station-fact-sheet.pdf?sfvrsn=2dcd9b28_2) (PDF). *Energy: Our power stations*. [Hydro Tasmania](/source/Hydro_Tasmania). [Archived](https://web.archive.org/web/20230618052455/https://www.hydro.com.au/docs/default-source/clean-energy/our-power-stations/power-station-fact-sheets/catagunya-power-station-fact-sheet.pdf?sfvrsn=2dcd9b28_2) (PDF) from the original on 18 June 2023. Retrieved 18 June 2023.

1. **[^](#cite_ref-3)** ["Catagunya Dam, Derwent River, 1962-"](https://portal.engineersaustralia.org.au/heritage/catagunya-dam-derwent-river-1962). Engineers Australia. Retrieved 27 April 2020.

1. **[^](#cite_ref-hydro_4-0)** ["Derwent: Catagunya Power Station"](https://www.hydro.com.au/clean-energy/our-power-stations/derwent). *Energy*. [Hydro Tasmania](/source/Hydro_Tasmania). [Archived](https://web.archive.org/web/20220304020415/https://www.hydro.com.au/clean-energy/our-power-stations/derwent) from the original on 4 March 2022. Retrieved 18 June 2023.

## External links

- ["Tasmanian Hydro Electric Schemes | Derwent catchment | Lower Derwent"](https://web.archive.org/web/20060919104726/http://www.hydro.com.au/home/Energy/Tasmanian+Hydro+Electric+Schemes/Catchment+Areas/Derwent+Catchment/The+Lower+Derwent.htm). *[Hydro Tasmania](/source/Hydro_Tasmania)*. Archived from [the original](http://www.hydro.com.au/home/Energy/Tasmanian+Hydro+Electric+Schemes/Catchment+Areas/Derwent+Catchment/The+Lower+Derwent.htm) on 19 September 2006.

v t e Hydroelectric dams on the River Derwent Clark Wayatinah Catagunya Repulse Cluny Meadowbank

v t e Dams and reservoirs in Tasmania, Australia Central Highlands Arthurs Lake Catagunya Clark Cluny Lake Binney Lake Echo Liapootah Meadowbank Miena Pine Tier Repulse Wayatinah King Island Upper Grassy North East Briseis Cascade Clarence Curries River Duck Reach Weir Frome Monarch Mount Paris North West Guide River Henty Pet River White Spur Northern Augusta Cethana Devils Gate Ford Mackenzie Meander Paloona Parangana Rowallan Taylor No. 3 Trevally Wilmot South Craigbourne Flagstaff Gully Hall No. 2 Knights Creek Limekiln Gully Lower Reservoir Ridgeway Rileys Creek Risdon Brook Stanton South West Edgar Gordon Laughing Jack Scotts Peak Serpentine Western Anthony and levee Bastyan and levee Crotty Darwin Mackintosh Tullabardine Margaret Murchison Newton Reece Decommissioned Tolosa Park Category | List

v t e Energy in Tasmania Hydroelectric Derwent Butlers Gorge Catagunya Cluny Lake Echo Liapootah Meadowbank Nieterana Repulse Tarraleah Tungatinah Wayatinah Gordon-Pedder Gordon Franklin Dam controversy Mersey-Forth Cethana Devils Gate Fisher Lemonthyme Paloona Parangana Rowallan Wilmot West Coast King John Butters Lake Margaret Pieman / Anthony Bastyan Mackintosh Reece Tribute Yingina / Great Lake Poatina Tods Corner Trevallyn Others Huntsman Decommissioned Duck Reach Moorina Waddamana Waddamana B Wind farms Granville Harbour Musselroe Woolnorth Cattle Hill Huxley Hill (King Island) Natural gas Tamar Valley Decommissioned Bell Bay Organisations Alinta Aurora Powerco Hydro Tasmania Roaring 40s TasNetworks Former Transend Networks Interconnectors Basslink Planned Marinus Link Other Office of the Tasmanian Economic Regulator 2016 Tasmanian energy crisis List of power stations in Tasmania

v t e Central Highlands region of Tasmania, Australia Settlements Bronte Park Derwent Bridge Gretna Liawenee Miena Tarraleah Governance Lyons (federal) Lyons (state) Western Tiers (state) Central Highlands Council Meander Valley Council Mountains Artillery Knob King Davids Mount Olympus Du Cane Range The Acropolis Castle Crag Geryon Gould Ossa Thetis Cradle Cirque - Bluff Cirque Barn Bluff Cradle Smithies Cathedral Cathedral Great Western Tiers Ironstone Mother Cummings Quamby Bluff Pelion Range Pelion East Pelion West National parks Other conservation areas Cradle Mountain-Lake St Clair Mole Creek Karst Tasmanian Wilderness World Heritage Area Walls of Jerusalem Central Plateau Conservation Area Interlaken Lakeside Reserve Rivers Derwent Lake Nive Meander Lakes Arthurs Bronte Great Mackenzie St Clair Dams Arthurs Lake Catagunya Clark Cluny Lake Binney Liapootah Mackenzie Meadowbank Meander Miena Pine Tier Miena Repulse Wayatinah Power stations Butlers Gorge Catagunya Cluny Fisher Lake Echo Liapootah Meadowbank Nieterana Poatina Repulse Tarraleah Tods Corner Tungatinah Wayatinah Decommissioned Waddamana Transport Lake Highway Lyell Highway Marlborough Highway Landmarks El Grande Horseshoe Falls Lady Barron Falls Overland Track Pelion Gap Russell Falls Waterfall Valley Hut other Central Highlands (bioregion) 2016 Tasmanian bushfires

---
Adapted from the Wikipedia article [Catagunya Dam](https://en.wikipedia.org/wiki/Catagunya_Dam) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Catagunya_Dam?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.