10 July 2007 - Construction of the Cedar Grove Weir, which is part of the Logan Catchment Works, is now underway and on schedule to be completed by the end of the year. Construction began with a 135-tonne crane driving the first of 1,400 tonnes of foundation sheet pile into the riverbed on 20 June. The $18.5 million Cedar Grove Weir will play an important role as a pumping pool for the proposed water storages in the Logan catchment, boosting regional water supplies. Premier Peter Beattie visited the site to inspect the start of construction works. “Cedar Grove Weir once completed, will provide in conjunction with Wyaralong a huge boost to SEQ’s water supply, with an estimated yield of up to 21,000 ML a year – that’s an extra 57 million litres of drinking water a day,” Mr Beattie said. Completed pre-construction works include site offices, an access road, and the delivery of the required sheet piling. The structure will be a steel sheet pile weir with a 50m long wall, which will feature a fishway to facilitate fish movements up and down stream.
The weir will be designed so that excess water flows over the top of the structure during high flow events. Even at full capacity, there will be minimal impact on land upstream of the weir, as the increased water levels will be easily contained within the existing bed and banks of Teviot Brook and the Logan River.
The Queensland Government has given Queensland Water Infrastructure Pty Ltd (QWI) responsibility to deliver Cedar Grove Weir, Bromelton Offstream Storage and the proposed Wyaralong Dam. QWI has appointed the Water Infrastructure Solutions Alliance to undertake the construction work for Cedar Grove Weir and Bromelton Offstream Storage. |