Lake Macdonald Dam Upgrade

Throughout 2021 and 2022, Seqwater worked with a Technical Review Panel to evaluate and short-list options for the Lake Macdonald Dam Improvement Project.

In 2023, Seqwater worked through the preferred design option, completed the environmental and economic studies, and advanced through important project approvals.

The confirmed design option includes a new split-level concrete spillway (set at the original lake level), with an upper labyrinth spillway (zigzag in shape) to accommodate higher floods (see design section for detail). 

This is a Seqwater project. For more information, please visit the seqwater website