Wappa Dam

Wappa Dam
Wappa Dam, 2018
Wappa Dam is located in Queensland
Wappa Dam
Location of the Wappa Dam in Queensland
CountryAustralia
LocationSouth East Queensland
Coordinates26°34′12″S 152°55′19″E / 26.57000°S 152.92194°E / -26.57000; 152.92194
PurposePotable water supply[1][2]
StatusOperational
Opening date1963 (1963)
Operator(s)SEQ Water
Dam and spillways
Type of damGravity dam
ImpoundsSouth Maroochy River
Height24 m (79 ft)[1]
Length138 m (453 ft)[1][2]
Dam volume12×10^3 m3 (420×10^3 cu ft)[1]
Spillway typeUncontrolled
Spillway capacity1,420 m3/s (50,000 cu ft/s)[1]
Reservoir
Total capacity4,610 ML (1,010×10^6 imp gal; 1,220×10^6 US gal)[2][3]
Catchment area69.7 km2 (26.9 sq mi)[1][2]
Surface area74 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]

  1. ^ a b c d e f g "Register of Large Dams in Australia". Dams information. Australian National Committee on Large Dams. 2010. Archived from the original (Excel (requires download)) on 12 December 2013. Retrieved 5 July 2014.
  2. ^ a b c d "Wappa Dam". Water supply: Dams and weirs. Seqwater. 2014. Retrieved 5 July 2014.
  3. ^ a b c Cite error: The named reference qlddams was invoked but never defined (see the help page).
  4. ^ "Queensland Globe". State of Queensland. Retrieved 24 July 2020.