The study area

The study area for the Plan is the tidal section of the Tweed River, between the Bray Park Weir at Murwillumbah and the mouth of the river at Tweed Heads.

This includes the tidal section of the Rous River.

The Tweed River catchment has an area of 1,326km2 and is almost entirely encompassed within Tweed Shire.

Upstream of Murwillumbah, the Tweed and Oxley Rivers drain the steep ranges encircling Mt Warning-Wollumbin and meet at Byangum, just above the Bray Park Weir.

Bray Park Weir is the upward limit of tidal influence and is where Tweed Shire's drinking water supply is extracted.

Below Murwillumbah, the estuary meanders across an extensive floodplain dominated by sugar cane and is joined at Tumbulgum by its northern tributary, the Rous River.

The Cobaki and Terranora systems are also major tributaries of the Tweed River system and join the estuary at Tweed Heads. However, the Cobaki and Terranora systems do not form part of the study area because they were assessed during preparation of the Cobaki and Terranora Broadwater Coastal Zone Management Plan in 2013.

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