Commenced in 1974 and completed in 1984, the Windamere Dam is a minor ungated dam, located approximately 19 kilometres (12 mi) south-west of Rylstone. The dam was built by Abignano Pty Ltd on behalf of the New South Wales Department of Land and Water Conservation to supply water for irrigation and potable water for the towns of Mudgee and Gulgong.[1][2][3] Windamere Dam operates in conjunction with Burrendong Dam to supply water to the Cudgegong and Macquarie valleys.[1]
The dam wall constructed with 1,740 cubic metres (61,000 cu ft) of rock fill with clay core is 67 metres (220 ft) high and 825 metres (2,707 ft) long. The maximum water depth is 58 metres (190 ft) and at 100% capacity the dam wall holds back 368,120 megalitres (13,000×10^6 cu ft) of water at 552 metres (1,811 ft) AHD. The surface area of Lake Windamere is 2,030 hectares (5,000 acres) and the catchment area is 1,070 square kilometres (410 sq mi). The uncontrolled unlined rock cut spillway is capable of discharging 6,270 cubic metres per second (221,000 cu ft/s).[1][2][3]
Geotechnical problems included excessive grout takes in highly fractured rock in the dam foundation. The dam foundations are weathered Devonian conglomerates, sandstones and shales. The spillway is located about 1 kilometre (0.62 mi) away from the dam wall in mostly unweathered Ordovicianandesite. The spillway is an unlined rock cutting that provided all the rock fill required for the construction of the dam embankment. If a spillway had been built in the weathered sedimentary rocks at the dam site full concrete lining would have been required.[4]
To allow the dam's construction, a 15 kilometre deviation of the Castlereagh Highway opened in December 1982.[5]
Power generationedit
A hydro-electric power station generates up to 2 megawatts (2,700 hp) of electricity from the flow of the water leaving Windamere Dam.[1]
^ abcd"WIndamere Dam" (PDF brochure). State Water Corporation. 2009. Retrieved 22 April 2013.
^ ab. Dams information. The Australian National Committee on Large Dams Incorporated. 2010. Archived from the original (Excel (requires download)) on 12 December 2013. Retrieved 22 April 2013.
^ ab"Windamere Dam". Water delivery: dams. State Water Corporation. Retrieved 22 April 2013.
^Woodward, Richard (2005). "Windamere Dam". Some of My Dam Projects. Retrieved 22 April 2013.
^A Major Deviation of Trunk Route 55 Around Windamere Dam Main Roads March 1983 pages 15-17
windamere, minor, ungated, rock, fill, with, clay, core, embankment, with, uncontrolled, unlined, rock, cutting, spillway, across, cudgegong, river, cudgegong, upstream, mudgee, central, tablelands, south, wales, australia, purpose, includes, hydro, power, irr. Windamere Dam is a minor ungated rock fill with clay core embankment dam with an uncontrolled unlined rock cutting spillway across the Cudgegong River at Cudgegong upstream of Mudgee in the Central Tablelands of New South Wales Australia The dam s purpose includes hydro power irrigation water supply and conservation The impounded reservoir is called Lake Windamere Windamere DamLocation of the Windamere Damin New South WalesCountryAustraliaLocationCentral Tablelands New South WalesCoordinates32 43 40 S 149 46 25 E 32 727861 S 149 773510 E 32 727861 149 773510PurposeHydro power irrigation water supply and conservationStatusOperationalConstruction began1974Opening date1984Owner s State Water CorporationDam and spillwaysType of damEmbankment damImpoundsCudgegong RiverHeight67 m 220 ft Length825 m 2 707 ft Dam volume1 740 m3 61 000 cu ft Spillways1Spillway typeUncontrolled unlined rock cuttingSpillway capacity6 270 m3 s 221 000 cu ft s ReservoirCreatesLake WindamereTotal capacity368 120 ML 13 000 10 6 cu ft Catchment area1 070 km2 410 sq mi Surface area2 030 ha 5 000 acres Maximum water depth58 m 190 ft Normal elevation552 m 1 811 ft AHDPower StationTypeConventionalInstalled capacity2 MW 2 700 hp WebsiteWindamere Dam at www statewater com au Contents 1 Location and features 1 1 Power generation 2 See also 3 References 4 External linksLocation and features editCommenced in 1974 and completed in 1984 the Windamere Dam is a minor ungated dam located approximately 19 kilometres 12 mi south west of Rylstone The dam was built by Abignano Pty Ltd on behalf of the New South Wales Department of Land and Water Conservation to supply water for irrigation and potable water for the towns of Mudgee and Gulgong 1 2 3 Windamere Dam operates in conjunction with Burrendong Dam to supply water to the Cudgegong and Macquarie valleys 1 The dam wall constructed with 1 740 cubic metres 61 000 cu ft of rock fill with clay core is 67 metres 220 ft high and 825 metres 2 707 ft long The maximum water depth is 58 metres 190 ft and at 100 capacity the dam wall holds back 368 120 megalitres 13 000 10 6 cu ft of water at 552 metres 1 811 ft AHD The surface area of Lake Windamere is 2 030 hectares 5 000 acres and the catchment area is 1 070 square kilometres 410 sq mi The uncontrolled unlined rock cut spillway is capable of discharging 6 270 cubic metres per second 221 000 cu ft s 1 2 3 Geotechnical problems included excessive grout takes in highly fractured rock in the dam foundation The dam foundations are weathered Devonian conglomerates sandstones and shales The spillway is located about 1 kilometre 0 62 mi away from the dam wall in mostly unweathered Ordovician andesite The spillway is an unlined rock cutting that provided all the rock fill required for the construction of the dam embankment If a spillway had been built in the weathered sedimentary rocks at the dam site full concrete lining would have been required 4 To allow the dam s construction a 15 kilometre deviation of the Castlereagh Highway opened in December 1982 5 Power generation edit A hydro electric power station generates up to 2 megawatts 2 700 hp of electricity from the flow of the water leaving Windamere Dam 1 See also edit nbsp New South Wales portal nbsp Water portal nbsp Renewable energy portal Irrigation in Australia List of dams and reservoirs in New South WalesReferences edit a b c d WIndamere Dam PDF brochure State Water Corporation 2009 Retrieved 22 April 2013 a b Register of Large Dams in Australia Dams information The Australian National Committee on Large Dams Incorporated 2010 Archived from the original Excel requires download on 12 December 2013 Retrieved 22 April 2013 a b Windamere Dam Water delivery dams State Water Corporation Retrieved 22 April 2013 Woodward Richard 2005 Windamere Dam Some of My Dam Projects Retrieved 22 April 2013 A Major Deviation of Trunk Route 55 Around Windamere Dam Main Roads March 1983 pages 15 17External links edit Macquarie Bogan River catchment map Office of Environment amp Heritage Government of New South Wales Retrieved from https en wikipedia org w index php title Windamere Dam amp oldid 1176663223, wikipedia, wiki, book, books, library,
