Lower Mary River Weirs & Barrages History Lower Mary River Weirs Initially approved to help farm production through a reliable water supply in 1978, the project and its associated barrages were completed in 1988. Tinana Barrage, built in 1980, is downstream of Teddington Weir on Tinana Creek, and Mary River Barrage, built in 1982, is … Continue reading Lower Mary River Weirs & Barrages […]

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