WaterNSW informs Balranald Weir users on works

WaterNSW informs Balranald Weir users on works

22 December 2016

WaterNSW is advising customers and other users of Balranald weir pool that the water level is likely to fall well below usual summer levels during work to restore the weir’s function following recent flooding.

Extensive work is required to reinstall the panels on the weir substructure, as well as to repair the crane and tracks required to do so.

The panels were removed prior to the extensive flooding in the region, which subsequently damaged the rail track network used to mobilise the crane.

The work will begin at the end of December and could take up to three weeks, and will also include desilting in the immediate vicinity of the weir.

In that time the weir pool could fall by at least one metre (1m) below usual summer levels, leaving the storage well below the pump intakes used to extract from the weir pool.

WaterNSW has informed local users groups that they will need to adjust their pumps accordingly for the duration of this essential work.

Water systems operations manager for the region, Vince Kelly, said the works could also constrain WaterNSW capacity to make water deliveries upstream of the weir and encouraged customers to monitor the river level closely, and adjust planned extractions in order to assist WaterNSW in minimising impacts on customers.

The forecast river levels and timing of potential impacts is highly dependent on floodwaters returning from the Nimmie Caira floodplain upstream. The return flows are currently receding at a steady rate, but the recession is difficult to accurately forecast.

WaterNSW is forecasting river flows to range from 1500 - 2500 megalitres per day (ML/day) in early January, rates that are significantly higher the than the seasonal minimum of 180 ML/day. This has only been possible due to river operation requirements, but will assist in minimising impacts.

Contact: Tony Webber

Phone: 0428 613 478

Wednesday 20 February
1,508,803 ML
2,581,850 ML
12,648 ML
1,807 ML
-14,610 ML
Wednesday 20 February