Parks and Wildlife Service invites tenders for the construction of a reinforced
concrete spillway and associated earthworks for the Lake Llewellyn Dam, located
in Northwest Tasmania, at Sisters Beach.
The dam was constructed in the 1960's and has an earthern embankment, 8m high
and a full capacity of 340ML. The existing spillway consists of a 15m wide x
1.4m deep broad crested wier and does not meet current guidelines. The upgrade
requirement includes a 37m long x 15m (maximum) wide reinforced concrete side
entry spillway and associated earthworks.