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NSW Flood Data Portal

Floodplain Risk Management Study and Plan

Manilla Floodplain Risk Management Study and Draft Plan

The upper catchments of the Manilla and Namoi River catchments are located to the northwest of Tamworth in the New England region of NSW. Both rivers drain large catchments (2075 km2 and 3075 km2 respectively) before they confluence at Manilla, approximately 25 km upstream of Keepit Dam on the Namoi River. The Manilla River headwaters are located near Split Yard Mountain in the Nandewar Range and drain in a north easterly direction to the Plumthorpe area, before turning south-east towards the town of Barraba. Approximately 20 km south of Barraba, the Manilla River discharges into Split Rock Dam (storage volume 400 GL). From Split Rock Dam, the Manilla River drains southwards for a further 25km before it confluences with the Namoi River within the town of Manilla. Key objectives and outcomes of the project are summarised below:

  • Undertake a Floodplain Risk Management Study and develop a Management Plan that addresses existing future and continuing flooding.
  • Undertake the study and develop the plan in accordance with the NSW Floodplain Development Manual, 2005.
  • Engage the community and stakeholders to solicit feedback, understanding and support of the Floodplain Risk Management Study and Plan.
  • Ensure consultation with the key stakeholders including Council, the Flood Risk Management Committee and the community are undertaken in a thorough

Additional Information

Field Value
Title Manilla Floodplain Risk Management Study and Draft Plan
Publication Date 13 February 2018
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Tamworth Regional Council
Author/ Prepared by GHD
Publish date 10 June 2020
Update date 11 June 2020
River Basin 419 - Namoi
Approval State Approved
Submitted for approval 11 June 2020
Submitted by Akhil Sud
Approved 11 June 2020
Approved by dstazic
Identifier 05e550de-f6e0-4801-b422-a8fbe57d2981