Physical characteristics
Estuary type: Barrier river
Entrance
location |
Latitude (ºS) |
–30.87 |
Longitude (ºE) |
153.03 |
Catchment area (km2) |
11,287 |
Estuary area (km2) |
31.6 |
Estuary volume (ML) |
70,235.2 |
Average depth (m) |
2.6 |
Tidal exchange volume
Tidal exchange volume and tidal prism data is available for this estuary. This tidal prism was measured in 2003.
Tide state |
Flow
(106 m3) |
Local tidal
range (m) |
Sydney Harbour
tidal range (m) |
Ebb flow |
16.48 |
1.39 |
1.68 |
Flood flow |
16.65 |
1.38 |
1.71 |
Notes: km2 = square kilometres; m = metres; m3 = cubic metres; ML = megalitres.
Water depth and survey data
Bathymetric and coastal topography data for this estuary are available in our data portal.
Land use
The Macleay River flows from the agriculture-dominated Northern Tablelands through a rugged and sparsely populated mid-catchment. The wider valleys of the lower catchment are used for livestock grazing, agriculture and dairying. Grazing accounts for over half of land use within the catchment, and forest accounts for around 40% of land use. Major towns in the catchment are Armidale, Walcha and Kempsey.
Water use
Find out about water use in the Macleay River, including information about major water users, real-time flow data, and environmental and water sharing plans.
South West Rocks and Macleay River web cam
The South West Rocks and Macleay River web camera provides real-time video of conditions within the river entrance immediately offshore to help with bar crossings and boat safety.