A major infrastructure and environmental upgrade is underway at the historical Wanganella site, where an aging weir is being replaced with a modern regulator and an integrated fish ladder.

A recent site inspection by Yanco Creek and Tributaries Advisory Council (YACTAC) President Trevor Clark and project officer Karen Luckel explained the urgency of the works.

“The existing weir was near the end of its serviceable life and was due for replacement,” the YACTAC project officer said.

“The new structure will not only improve water management but also provide fish with free passage, helping to restore connectivity and support healthier aquatic ecosystems.”

The visit was facilitated by David Clarke from the Sustainable Diversion Limit Adjustment Mechanism (SDLAM) program, with a guided tour provided by James Jabour from lead contractor Abergeldie.

During construction, a small section of the creek was isolated, drained, and pumped out to allow work to proceed.

An independent ecologist was employed to monitor the dewatering phase and salvage local wildlife.

The ecological audit recorded 95 Murray Cod, 11 Golden Perch, one Long-Necked Turtle, and 20 European Carp.

“It is great to see high native numbers and also encouraging to see low exotic numbers, although many factors could contribute to this,” Ms Luckel said.

All captured native species were safely released upstream and downstream of the construction zone.

The environmental work extends beyond the regulator itself. Upstream of the weir, development is progressing on a Refreshing Rivers Demonstration Site.

The project officer credited the site contractors for assisting with future habitat restoration.

“A big thanks to Abergeldie for working with YACTAC and the Refreshing Rivers team to salvage and store some awesome root balls and stumps that will be utilised in the upcoming restoration works,” Ms Luckel said.

YACTAC said the salvaged instream woody debris will be reinstalled to support the creek’s long-term health.

The structures are designated to assist with creekbank stabilisation, improve aquatic habitat, increase biodiversity, enhance water quality, restore natural woody instream structures, and build long-term ecosystem resilience.

This article appeared on Back Country Bulletin on 14 July 2026.