Somerset Dam / Lake Somerset
Stanley River near Kilcoy
Stanley River near Kilcoy
Lake Surface Area:
Full Supply Capacity:
376,516 ML (99.1% full) at 12/12/2013 06:30AM
Full Supply Waterline:
99m AHD (above sea level)
Eight radial gates
Type of Construction:
Mass concrete gravity dam
Length of Dam Wall:
About Somerset Dam
Somerset Dam was constructed by the Bureau of Industry Stanley River Works Board. Construction commenced in 1935 but had to be suspended due to World War II. Work resumed in 1948 and the dam was completed in 1959.
Water from Somerset Dam is released into Wivenhoe Dam, which in turn supplements the natural flow of the Brisbane River and maintains an adequate supply of water to the Mt Crosby pumping station located 132 kilometres downstream.
Lifelike training manikin lost during training exercise on the lake (Friday, 15 November 2013)
During a recent training event by a not-for-profit organisation, an adult-sized life like manikin used during "man overboard" activities sank and has yet to be recovered. The manikin is finished in a black fabric and was fitted with a red personal floatation device.
The location of the manikin is reported to be in the area north of Kirkleagh locally known as The Junction (S 270 00.138, E 1520 34.102).
Lake users who happen to sight the manikin, or who locate and are able to safely retrieve the manikin, should report the location or return the item by contacting Francine on 0407137905 at any time.
The following recreational activities are permitted at Lake Somerset:
- boating (powered and non-powered) with permit
- electric model boating (outside designated swimming areas)
- camping (available at Somerset Park – 5426 4729 or firstname.lastname@example.org for bookings)
- jet skiing
- swimming (designated areas)
Please note that shoreline fishing and boating are permitted at the appropriate sections of the designated recreation areas. Other areas of the shoreline may be private land or may be subject to re-vegetation projects, and access to that land is not permitted for shoreline fishing nor for launching, retrieving or beaching vessels.
Download the new Lake Somerset Recreation Guide (6MB).
Interesting facts about Somerset:
- The length of the dam is 305 metres and the maximum thickness at the base of the wall is approximately 41 metres.
- The Somerset Dam wall is a mass concrete gravity type, using a volume of 203,000 cubic metres of concrete, which resists the thrusts of water by its weight alone.
- The top of the 8 spillway gates (8x 17.97m x 7.01m) is 108 metres above sea level, 47 metres above the original stream bed and 53 metres above the base foundation of the wall.
- The Somerset Dam hydroelectric power station was commissioned in 1953 and completed in 1959. It is a small plant of 4000 KVA capacity.
Somerset water release into Lake Wivenhoe (March 2009)