A $120,000 partnership between Condamine Alliance and Arrow Energy will restore the Loudoun Weir fishway and boost the chances of native fish survival.
The future of the fishway, which was reopened in 2009, looked uncertain after it was significantly damaged by floodwaters last year.
Determined to fix it so native fish could swim beyond the weir to breed, Condamine Alliance approached Arrow Energy who agreed to support the rescue works through its community investment program, Brighter Futures.
"The fishway is the most important environmental achievement for the river on the Western Downs," Condamine Alliance chief executive officer Phil McCullough said.
"It is also a vital link in the Dewfish Demonstration Reach, which was awarded the prestigious 2012 Australian Riverprize last week.
"The fishway acts as an 'escalator' to help native fish move beyond the weir to breed.
"This rescue work is crucial to guarantee the fishway is 100% operational so native fish can return to the river."
The work begun this week by foundation fishway supporter, Dalby-based civil construction company Ostwald Bros, who contributed heavily to its reconstruction in 2009.
Specially designed grates will be installed over the fishway's lower cells to keep out silt and debris, and entrance and exit points will be modified to improve passage for smaller native fish.
It is expected to be completed by the end of the month.
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