Wappa Dam | |
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Location of the Wappa Dam in Queensland | |
Country | Australia |
Location | South East Queensland |
Coordinates | 26°34′12″S 152°55′19″E / 26.57000°S 152.92194°E |
Purpose | Potable water supply[1][2] |
Status | Operational |
Opening date | 1963 |
Operator(s) | SEQ Water |
Dam and spillways | |
Type of dam | Gravity dam |
Impounds | South Maroochy River |
Height | 24 m (79 ft)[1] |
Length | 138 m (453 ft)[1][2] |
Dam volume | 12×10 3 m3 (420×10 3 cu ft)[1] |
Spillway type | Uncontrolled |
Spillway capacity | 1,420 m3/s (50,000 cu ft/s)[1] |
Reservoir | |
Total capacity | 4,610 ML (1,010×10 6 imp gal; 1,220×10 6 US gal)[2][3] |
Catchment area | 69.7 km2 (26.9 sq mi)[1][2] |
Surface area | 74 ha (180 acres)[3] |
Website www.seqwater.com.au |
The Wappa Dam is a mass concrete gravity arch dam with earth-fill abutments and an un-gated spillway across the South Maroochy River that is located in the South East region of Queensland, Australia. The main purpose of the dam is for supply of potable water for the Sunshine Coast region.[1][3] The impounded reservoir is also called Wappa Dam. The dam and most of the reservoir are within Kiamba with the most northerly part of the reservoir in Cooloolabin, both in the Sunshine Coast Region.[4]
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