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Ewen Maddock Dam, Mooloolah Valley

(4.5/5 based on 30+ reviews on the web)
The Ewen Maddock Dam is an earth-fill embankment dam with an un-gated spillway across the Addlington Creek that is located in the South East region of Queensland, Australia. The main purpose of the dam is for potable water supply of the Sunshine Coast region.Location and featuresThe Ewen Maddock Dam is situated approximately southeast of Mooloolah and from Landsborough to supply the fast-growing region with town water. The dam is built across the Addlington Creek, a tributary of the Mooloolah River, and was commenced in 1973, completed in 1976, with a subsequent upgrade to the height of the spillway in 1982.The earthfill dam structure is high and ranges from 660- in length to hold back 16590ML reservoir when at full capacity. From a catchment area of, the dam creates an unnamed reservoir with an average depth of. The surface area of the 3.1km long and 2.6km wide reservoir is. The uncontrolled un-gated spillway has a discharge capacity of. The dam is managed by Seqwater.Water supplyIn the past, raw water from the dam has been supplied to a treatment plant at Caloundra. Since 1988 Ewen Maddock Dam was not used as a water source due to a lack of working water treatment infrastructure. In 2007, work begun on an 30 million water treatment plant that will allow the dam to supply drinking water to the South East Queensland Water Grid, via the Northern Pipeline inter-connector. The Queensland Government incorporated a 100m timber boardwalk along the reservoir's edge into the revised master plan when open space at Ewen Maddock Park was resumed for the treatment plant's construction.
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Reviews
TripAdvisor
  • Only thing that's missing is bizarrely enough a water fountain for drinking! Not particularly well signed off the road and not a lot of parking space but otherwise good with a walking trail, small bea...  more »
  • We love it here! Awesome place for young children to swim. The locals love it, well looked after and a great place to relax. 
  • Even though there were a heap of visitors to this wonderful place it was still peaceful. Great place for a barbie or picnic. A few sheltered tables and chairs. Lovely views of the dam and a great plac...  more »