Manning River

Physical characteristics

Latitude (ºS)-31.88
Longitude (ºE)152.70
Catchment area (km2)18124.5
Estuary area (km2)1,234.7
Estuary volume (ML)396258.5
Average depth (m)43.0
Roy et al. (2001) classification5III/5/D
Entrance condition6O/T
  1. Derived from DECCW (2010) NSW estuaries and coastal catchments spatial database.
  2. Includes area mapped as open water (see note 1), mangrove and saltmarsh areas (Creese R. G., Glasby T. M., West G. and Gallen C. (2009) Mapping the habitats of NSW estuaries. Industry & Investment NSW Fisheries Final Report Series 113. Port Stephens, NSW, Australia.
  3. Based on areas at 0.6 m AHD (Roper T., Creese B., Scanes P., Stephens K., Williams R., Dela-Cruz J., Coade G. and Coates B. (2011) Assessing the condition of estuaries and coastal lake ecosystems in NSW. Office of Environment and Heritage, Sydney).
  4. Estimated by dividing the total volume at 0.6 m AHD by the total surface area of the estuary including mangrove areas but excluding saltmarsh (Roper et al., 2011)
  5. Estuary group: I = oceanic embayment, II = tide dominated estuary, III = wave dominated estuary, IV = intermittently closed estuary V = freshwater bodies
    Estuary type: 1 = ocean embayments, 3 = drowned valley estuary, 5 = barrier estuary, 6 = barrier lagoon, 7 = interbarrier estuary, 8 = saline coastal lagoon, 9 = small coastal creeks, 11 = brackish barrier lake. Evolution stage: A=youthful, B=intermediate, C=semi-mature, D=mature.
    (P. S. Roy, R. J. Williams, A. R. Jones, I. Yassini, P. J. Gibbs, B. Coates, R. J. West, P. R. Scanes, J. P. Hudson and S. Nichol (2001) Structure and Function of South-east Australian Estuaries. Estuarine, Coastal and Shelf Science 53, 351-384)
  6. Entrance conditions: O = open, T = trained, I = intermittent.

Tidal prism

The volume of water moving past a fixed cross section during each flood tide or ebb tide (i.e. slack water to slack water), is referred to as the tidal prism of an estuary.

The following table shows the measured tidal prism at the location specified, along with the tidal range for near the measurement site and at Sydney Harbour.

Location:     3.4km upstream from the entrance on 3/11/98

Tide stateFlow
(106 m3
tidal range (m)
Sydney Harbour
tidal range (m)
Ebb flow14.831.311.57
Flood flow

Tidal survey

Tidal surveys measure the hydrodynamic behaviour of an estuary during a full tidal cycle. The parameters measured include velocity, water levels, salinity, temperature and pH.

The following tidal surveys have been undertaken on this estuary. A map shows the location and plots of the flows and water levels for the most comprehensive survey.

Copies of tidal survey reports are available from the Estuary Management Program

DateData collectedFigureReport
Oct 1981Current metering at four lines on the Lower Manning River, four tideboards, temp/salinity, bed and suspended sediment samples.-MHL380
Nov 1981Current metering at five lines on the Upper Manning River, five tideboards, temp/salinity bed and suspended sediment samples.-MHL380
Mar 1986Current metering at various cross sections, water temperature and salinity readings, fluorometry work in conjunction with SPCC. Installation of tide recorder.-MHL458
Nov 1998Extensive data collection: water levels at fifteen sites, velocities at fourteen sites, in situ water quality at four sites and water quality profiles at forty-two sites and then an extra twenty-two sites.1988-23.pdfMHL968
Oct 1998 to Oct 1999Scotts Creek Water Quality Monitoring 2000.-MHL1029

Hydrographic survey

The hydrographic survey provides the depth and physical characteristics of the estuary.

The metadata associated with the survey can be found on the map sheets provided.

Map sheet number DescriptionScale    Size
53872s1.pdfIndex plan1:30000534.7kb
53872s2.pdfTidal planes1:50000680.8kb
53872s3.pdfLegends, notes & datum diagramN/A134.1kb
53872S4.pdfHarrington Inlet1:1000312.4kb
53872s5.pdfHarrington Inlet1:1000321.5kb
53872s6.pdfHarrington Inlet1:1000230.9kb
53872s7.pdfHarrington Inlet1:1000272.6kb
53872s8.pdfHarrington Inlet1:1000226.2kb
53872s9.pdfHarrington Inlet1:1000188.2kb
53872s10.pdfHarrington Inlet1:1000279.6kb
53872s11.pdfHarrington Inlet1:1000143.3kb
53872s12.pdfHarrington Inlet1:1000175.3kb
53872s13.pdfFarquhar Inlet1:1000143.6kb
53872s14.pdfFarquhar Inlet1:1000159.4kb
53872s15.pdfFarquhar Inlet1:1000171.5kb
53872s16.pdfFarquhar Inlet1:1000171.4kb
53872s17.pdfFarquhar Inlet1:1000159.8kb
53872s18.pdfFarquhar Inlet1:1000172.9kb
53872s19.pdfLuthrie Inlet1:2000217.1kb
53872s20.pdfManning River South Channel & Oyster Arm1:2000186.6kb
53872s21.pdfCross section locations - Manning River & Harrington Back Channel1:10000325.0kb
53872s22.pdfCross section locations - Manning River & Lansdowne River1:10000302.6kb
53872s23.pdfCross section locations - Manning River & South Channel1:10000343.3kb
53872s24.pdfCross section locations - Manning River, North & South Passage1:10000349.3kb
53872s25.pdfCross section locations - Manning River1:10000306.7kb
53872s26.pdfCross sections - Manning River1:1000 H 1:200 V155.6kb
53872s27.pdfCross sections - Manning River1:1000 H 1:200 V153.1kb
53872s28.pdfCross sections - Manning River1:1000 H 1:200 V148.3kb
53872s29.pdfCross sections - Manning River1:1000 H 1:200 V151.6kb
53872s30.pdfCross sections - Manning River1:1000 H 1:200 V144.0kb
53872s31.pdfCross sections - Manning River & North Passage1:1000 H 1:200 V188.0kb
53872s32.pdfCross sections - North & South Passage1:1000 H 1:200 V173.4kb
53872s33.pdfCross sections - South Passage1:1000 H 1:200 V169.0kb
53872s34.pdfCross sections - South Passage & Manning River1:1000 H 1:200 V174.9kb
53872s35.pdfCross sections - Manning River1:1000 H 1:200 V177.8kb
53872s36.pdfCross sections - Manning River1:1000 H 1:200 V167.7kb
53872s37.pdfCross sections - Manning River1:1000 H 1:200 V181.2kb
53872s38.pdfCross sections - Manning River1:1000 H 1:200 V150.4kb
53872s39.pdfCross sections - Pelican Bay1:1000 H 1:200 V156.6kb
53872s40.pdfCross sections - Mangrove Island Tributary & Cattai Creek1:1000 H 1:200 V233.4kb
53872s41.pdfCross sections - Lansdowne River1:1000 H 1:200 V269.5kb
53872s42.pdfCross sections - Lansdowne River & Ghinni Ghinni Creek1:1000 H 1:200 V298.6kb
53872s43.pdfCross sections - Dickensons Creek & Dawson River1:1000 H 1:200 V253.0kb
53872s44.pdfCross sections - Dawsons River & tributaries1:1000 H 1:200 V262.8kb
53872s45.pdfCross sections - South Channel1:1000 H 1:200 V185.1kb
53872s46.pdfCross sections - South Channel & Scotts Creek1:1000 H 1:200 V195.4kb
53872s47.pdfCross sections - Scotts Creek, Blackfords Bay & tributaries1:1000 H 1:200 V233.8kb
53872s48.pdfCross sections - Halls Creek & Trotters Island Tributary1:1000 H 1:200 V116.2kb
53872.txtManning River xyz dataN/A521.7kb
Page last updated: 26 April 2012