In days gone by, Mundaring Weir would regularly overflow and many sightseers would make the 40 km (24 mile) trip from Perth to see it. ... The Mundaring Weir was completed in 1903 to supply water to be piped 700 km (435 miles) to the Eastern Goldfields.

When was the last time Mundaring Weir overflow?

Mr Nicholls said the last time Mundaring overflowed down its 40-metre spillway was 22 years ago in October 1974. The dam was currently holding 83 per cent of its capacity.

How does the Mundaring Weir work?

Mundaring Weir was constructed to dam the Helena River and provide the water for the Coolgardie Water Supply Scheme. Today it remains the Goldfields' primary source of drinking water and one of the bookends of the Golden Pipeline Heritage Trail. It is also a popular tourist site.