Council undertakes mechanical entrance intervention at Lake Conjola
February 28, 2013
Shoalhaven City Council has undertaken a mechanical entrance intervention of Lake Conjola overnight.
Council moved to open the Lake to the ocean after the area received over 75mm of rain across the weekend, bringing the Lake’s water level close to the required trigger level of 1m AHD.
With the Lake water level at 0.96m AHD, only four centimetres below the trigger level, and rainfall predicted for the area late last night, the decision was made to enact the entrance intervention late yesterday.
After engaging with key stakeholders, including local residents onsite Tuesday morning, Council maintained the start and end points of the mid-spit opening however modified the original dog leg channel with a curving channel.
Shoalhaven City Council Mayor, Joanna Gash said she was pleased to see Council staff working with the local community and State Government Agencies to achieve a mutually beneficial outcome.
“By all reports, last night’s mechanical entrance intervention of Lake Conjola was an extremely successful operation,” said Clr Gash.
“With further rain expected over the next few days the Lake is already flowing freely to the ocean across a 25 metre opening. Whilst the water level is dropping slowly, currently sitting at 0.91m AHD, the entrance is flowing and has already started scouring.
“However with further rainfall on its way, residents should be alerted to the fact that the water level may rise again.”
Mayor Gash said Council staff will continue to monitor the entrance and its behaviour over the coming weeks.
Following a four week observation period Council will coordinate a debrief meeting with all stakeholders to analyse the effects of the intervention.