Physical characteristics
Estuary type: Barrier river
Entrance
location |
Latitude (ºS) |
–29.11 |
Longitude (ºE) |
153.44 |
Catchment area (km2) |
75.8 |
Estuary area (km2) |
2.7 |
Estuary volume (ML) |
2636.8 |
Average depth (m) |
1.1 |
Tidal exchange volume
Tidal exchange volume or tidal prism data is available for this estuary. This tidal prism was measured in 2006.
Tide state |
Flow
(106 m3) |
Local tidal
range (m) |
Sydney Harbour
tidal range (m) |
Ebb flow |
2.38 |
1.91 |
1.67 |
Flood flow |
2.47 |
1.75 |
1.65 |
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 catchment of Evans River is highly disturbed. Although three quarters of the catchment remains as forest, grazing, agricultural and urban development have resulted in significant modifications such as cleared land, and even to the river itself (i.e. a canal and weir). Forested areas occur mostly in the southern catchment and are managed in conservation areas and by private land holders.