As environmental contractors, one of Revegetation Contractors areas of expertise is the implementation of soil and water management plans.

The Department of Defence - Army, engaged Revegetation Contractors, together with environmental scientists. Natural Resource Assessments, to design and construct storm-water management and site rehabilitation works for the Army barracks site in Townsville, North Queensland.

The work addressed stormwater management, erosion and sediment minimisation, habitat protection, noise minimisation and soil contamination.

• the construction of 3 large flood detention ponds
• the stone lining of 880 metres of storm-water drains
• the naturalising of stormwater drains with rock
• the reinforcing of 5 smaller stone drains
• re-vegetation and temporary irrigation works

Re-vegetation techniques utilised throughout the life of the project included direct seeding, straw/hay mulching, hydro mulching and tree planting. Revegetation Contractors also made use of Vetiver grass to act as silt barriers in re-designed drainage systems and polyethylene cellular confinement Geoweb© for slope protection.

The batters and floors of many storm-water drains were severely eroded, leading to poor water quality off site. After re-contouring the drains, Revegetation Contractors re-vegetated the batters with couch and rye cover crop. Vetiver grass was chosen for drain floors because of its stabilising properties and its ability to provide temporary sediment control