Dredges, Brisbane River

Queensland State Archives posted a photo:

River Mud Beating Dredges

Mud and silt is accumulating in the Brisbane River faster than dredges remove it.

Sixty-six 10,000-ton freighters would be needed to carry the quantity now dredged from the Brisbane River each year.

But although 1,750,000 tons of mud and silt are dredged annually the river’s navigable depth is still only 24 feet – four less than it was in 1939.

Inadequate depth forced the freighter Rhexenor to load wool at the Pile Light at the weekend.

Main causes of the increased siltage are:-
1. Increased agricultural development in the upper reaches of the river and its tributaries, causing erosion.
2. The Somerset Dam holding back big floods which have hitherto scoured the river.

To continue reading visit:
The Courier-Mail, 23 February 1949

View the original image at the Queensland State Archives:
Digital Image ID 4076

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