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Dredging works at ‘Poundyard Weir’

The weir at Namoi Street, Coonabarabran is set to receive a clean up with dredging works due to commence this week.

“The ‘Poundyard Weir’ at Namoi Street, Coonabarabran is receiving some necessary maintenance to clear out silt that has built up over time,” said Warrumbungle Shire Council Mayor, Councillor Denis Todd. “Sediment and other debris have been washed down the river in repeated rain events since February. A large quantity has settled at the weir, reducing its capacity for water storage. Council is taking this action to help ensure local water security.”

“During the recent drought conditions, a large volume of silt could be seen at the weir. This has worsened since the rain this year. Council began the process of seeking approval to dredge the weir before the February rainfalls, however it was important to be cautious with any remaining water at that time. Dredging the weir in drought could have dirtied the water so that it could not be used, further reducing the amount of available water,” said Cr Todd.

“The dredging works will remove sediment, debris and weeds from the weir. As well as improving storage capacity, this work will decrease the risk of blockages occurring,” explained Cr Todd.

Cr Todd said “A contractor has been engaged to complete these works. They will use an amphibious excavator to remove around 750 cubic metres of silt and other debris from the weir. This will be loaded onto a barge and water will be drained back into the weir, minimising water wastage from this project. The solids remaining are then removed.”

“During the works a barrier will be placed in the weir to allow dirty water to settle before it flows downstream. This prevents sediment being washed away and causing problems in another location,” explained Cr Todd.

“Undertaking works in a waterway requires care to be taken to reduce effects on the environment. Council is following NSW Fisheries guidelines to ensure there is minimal environmental impact from this project,” concluded Cr Todd.

Dredging works are scheduled to commence on Tuesday 26 May 2020. For further information, contact Council’s Warrumbungle Water on 02 6849 2000.

Click here to download media release

1 PoundYard Weir Image 26052020

 

Last Updated: 26 May 2020

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