Blackman River: Woodbury Dam proposal Aquatic environmental assessment

Abstract

A large dam structure is proposed for the Blackman River in the vicinity of Woodbury, whose primary role is provision of irrigation water supply, capturing winter-/spring flows. A substantial structure, 20 m in height of dam wall, is proposed and will flood some 1.25 km of river channel and 59 ha of cleared land at FSL. There will be 5400 ML storage at FSL, and the dam will deliver irrigation water in summer to some 10-12 farmers between Woodbury and the Macquarie river junction. Delivery will be jointly via downstream summer flows in the Blackman River from valved pipes, as well as via a raceway channel from the dam wall.