The riverbank was reshaped for a rubble mound revetment constructed to a height equivalent to 1.9m high tide to break the wave action. A protective fence using oyster netting was constructed offshore of the bank and mangroves planted between the bank and fence. Phragmites were planted between the rock wall and the bank for further stabilisation as well as a 10-metre vegetated riparian buffer zone with casuarina glauca native trees. It is noted that planting in front of a revetment does not allow natural adaptation of the planted mangroves (i.e., retreat).
Mangroves
Method: Hybrid, Planting: seeds
Hybrid structure: Fence
Approach
Mangroves
Geographic context
Estuary
Organisation responsible
Riverwatch
Primary objective
Coastal protection
Coastal hazard
Erosion
Asset vulnerable
Built
Length of coastline targeted (m)
800
Date of completion
2002
Cost ($AUD)
$21,000