Lake St Clair Control Gates

At the southern end of St Clair Lagoon, we operate a small control dam that helps regulate water flow into Timtumili Minanya/River Derwent. It has been in operation for 90 years, so in early 2026, we’re embarking on a project to replace the 8 radial gates that form this dam, and overhaul the hoist system.

In preparation for the works, an Aboriginal heritage survey of the area was completed, revealing no heritage values. Works are expected to take 4 months.