17.2 River outflow from the region
The volume reported (100,442 ML) represents streamflow out of the Adelaide region into the ocean during the 2012–13 year. The following table presents measured streamflow at the most downstream station along the river, itemised by streamflow gauge. This is assumed to equal the volume of outflow to sea out of the Adelaide region.
|Map Id.||Site name||Site ID number||Data source||Volume 2012–13 (ML)|
|1||Gawler River at Virginia Park||A5050510||WDS||3,120|
|2||Helps Drain 100 m downstream Summer Road||A5051013||WDS||863|
|3||Little Para River downstream Port Wakefield Road||A5041006||WDS||597|
|4||Magazine Wetland at Outlet||A5041025||WDS||126|
|5||Range Wetland at Outlet||A5041024||WDS||488|
|6||Barker Inlet at Barker Wetland at Outlet||A5041009||WDS||6,999|
|7||Barker Inlet Wetland at Northern Outlet No. 2||A5041017||WDS||1,212|
|8||Dry Creek at Bridge Road*||A5041052||WDS||6,416|
|9||Kirkcaldy Wetland at Nash Street East Grange||A5041016||WDS||769|
|10||River Torrens at Holbrooks Road||A5040529||WDS||16,696|
|11||Patawalonga Creek upstream Barcoo Outlet||A5041022||WDS||399|
|12||Brown Hill Creek at Adelaide Airport (Morphett Road)||A5040583||WDS||3,455|
|13||Sturt River downstream Anzac Highway||A5040549||WDS||3,591|
|14||Field River upstream Mouth (downstream Lonsdale Road)||A5031010||WDS||6,145|
|15||Christie Creek downstream of Galloway Road||A5030547||WDS||2,595|
|16||Onkaparinga River 1.1 km upstream Estuary Ford Old Noarlunga||A5031005||WDS||14,034|
|17||Pedler Creek upstream mouth (Nashwauk Cres)||A5031009||WDS||1,814|
|18||Bungala River upstream Estuary||A5011029||WDS||2,051|
|19||Yankalilla River downstream Blackfellows Creek||A5011006||SWA||6,082|
|20||Hindmarsh River upstream estuary (Welch Road)||A5011027||WDS||11,898|
|21||Inman River us Victor Harbour Sewage Treatment Works||A5010503||SWA||10,403|
|22||Callawonga Creek upstream mouth (Tunk Head Road)||A5011030||WDS||689|
WDS: data sourced from the Water Data Services Adelaide and Mount Lofty Ranges Water Data website, refer to quantification approach for more information.
WC: data sourced from the WaterConnect website, refer to quantification approach for more information.
Map showing location of gauging stations used to measure streamflow to sea in the Adelaide region during the 2012–13 year
Adelaide and Mount Lofty Ranges Water Data website (Water Data Services 2014), WaterConnect website (Department of Environment, Water and Natural Resources 2013).
Bureau of Meteorology.
Streamflow data were obtained from the following sources:
- Adelaide and Mount Lofty Ranges Water Data website
- Water Data Services website.
The total flow volume was obtained by summing the 2012–13 year streamflow from gauging stations on most major rivers in the Adelaide region. Each gauging station monitors stream height, which is converted to a flow volume using a rating table.
Assumptions, limitations, caveats and approximations
- Streamflow data were not available for all major rivers. The Myponga River is the most significant omission; it is not measured downstream of the Myponga Reservoir.
- The rating table used to obtain the flow volume from the measured water level is assumed to hold for the full range of the measured water level.
The comparative year volume for line item 17.2 River outflow from region was restated in the water accounting statements from the 2012 Account due to a change in presentation. Please refer to Restatement of comparative year information in the 'Water accounting policies' for more information.