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Estuaries in NSW

Manly Lagoon
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[Image of Estuary] Manly Lagoon
Shape, Size and Scale of Estuary

Estuary Type

Small coastal lake

Estuary Characteristics

Area Catchment 14 km2
Waterway Area 0.1 km2
Entrance Characteristics Intermittently/mechanically opened, untrained
Location (Lat-Long) 33.787S ,  151.289E
Distance (from Sydney) 10 km North
Summary of Available Data Data Pages

Physical Features

Landuse within the catchment: 58% residential, 7% industrial and 35% open space most of which is located adjacent to the lagoon as a golf course and playing fields. Urban development has had a major impact on the lagoon. By the 1940's most of the surrounding wetlands were filled and drained.

Significant Estuarine Tributaries

Manly Lagoon
Manly Creek
Burnt Bridge Creek
Brookvale Creek

Population and Holiday Centres

Manly
Queenscliff
North Manly
Manly Vale

Special Attributes

General

  • Manly Lagoon has a restricted outlet to the sea through two concrete low flow pipes at the northern end of Queenscliff Beach.
  • No dune system remains along the main ocean beach, having been wholly contained within the ocean wall.
  • Manly Dam is no longer used for water supply but has become a popular recreational area.

Estuarine Vegetation

The spatial data is reproduced from NSW Fisheries(2006/7) studies, whilst the species makeup is from the West et al.(1985). This map shows the spatial extent of the Estuarine Vegetation.

Type Area Species 1
(km2)
Mangroves 0.000
Seagrass 0.002 z
Saltmarsh 0.000

References

R.J. Williams, G. West, D. Morrison and R.G. Creese, (2006),
"Estuarine Resources of New South Wales",
prepared for the Comprehensive Coastal Assessment (DoP) by the NSW Department of Primary Industries, Port Stephens.

R.J. West, C.A. Thorogood, T.R. Walford and R.J. Williams. (1985).
"An Estuarine Inventory for New South Wales, Australia".
Fisheries Bulletin 2. Department of Agriculture, New South Wales.

Estuary Commerce

fishing

Management Issues

This estuary falls in the area covered by Sydney Metro Catchment Management Authority.

Manly Lagoon

Current Situation

Manly and Warringah Councils have formed the Manly Lagoon Joint Estuary/Floodplain Management Committee which has prepared a management plan for Manly Lagoon.

The Estuary Management Process 2

Process Status Date
Form Estuary Management Committee (EMC) completed
Assemble Existing Data completed
Carryout Process Study completed
Carryout Estuary Management Study completed
Draft Estuary Management Plan completed
Review Estuary Management Plan completed
Implement Estuary Management Plan none
Monitor and Review Estuary Management Process none

Contact Details

Manly Council Christine Chapman
Ph 9976 1607 Fax 9976 1400

References

Local Government Areas

Manly
Warringah

NSW 1:25000 Map Name(s)

Sydney Heads