Healthy Country   On-ground works to prevent sediment runoff

On-ground works to prevent sediment runoff

 Sediment runoff

Rock chute sediment control measure
Blackfellow Creek Focal Area.

The Healthy Country program operating in the Bremer, Blackfellow Creek (Lockyer) and Knapp Creek (Logan) is now well into its on-ground delivery phase.

SEQ Catchments and the Department of Employment, Economic Development and Innovation have been working closely with local committees and landholders to raise awareness, build capacity and gain support for improving management practices and undertaking rehabilitation of gullies, channels and stream banks.

Through the SEQ Healthy Waterways Partnership, the eWater CRC team led by Professor Jon Olley have developed sediment budget models for each of the focal areas.  The results from the science has allowed the identification of the types, quantities and sources of sediment export as well as identifying where rehabilitation works are needed to achieve the best "bang for the buck".

SEQ Catchments field staff have been working closely with the scientists and landholders to design the on-ground works.

Currently 22 projects have been contracted with another 15 in the planning and design phase.

The contracted projects to reduce sediment runoff and improve water quality include:

  • 326 hectares of surface drainage works (minor engineering works such as grassed waterways and sediment traps)
  • 99 hectares managed with contours to evenly distribute flow
  • 157 hectares where stock have been excluded from gullies and sensitive landscapes
  • 202 hectares of groundcover management including weed control.

Additionally:

  • 35 hectares and 9.2 kilometres of riparian vegetation is being fenced to protect streams from stock, vehicles and agricultural impacts including 7 off-stream stock watering points
  • 4.4 hectares has been revegetated with native riparian species
  • 0.6 kilometres of streambank length has been protected through earthworks and vegetation management

The South East Queensland Traditional Owners Alliance is working closely with SEQ Catchments to locate projects that will involve. Traditional Owner and Indigenous work teams.

Currently a large Chinese Celtis removal project is being developed in the Bremer focal area. Chinese Celtis (also known as Chinese Elm) has spread along large areas of watercourses. These trees have replaced native vegetation reducing stream bank stability.