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NSW Flood Data Portal

Flood study

Lake Conjola Entrance Study

Lake Conjola is a coastal lake located about 50km south of Nowra on the NSW south coast. The lake has a surface area of approximately 4.3 square kilometres and a catchment area of 145 square kilometres. A shallow sandy inlet some 3 km long separates the main lake, which has water depths up to 10 m from the ocean. The inlet itself is shallow with extensive intertidal muddy sand flats and an average channel depth of the order of 1 m. Arising from the foregoing community concerns; the Lake Conjola Entrance Study was commissioned with the following objectives:

  • to develop an understanding of existing lake processes;
  • to determine the effect of existing entrance conditions on lake flood behaviour and water quality (particularly faecal contamination);
  • to determine the relative impact of different entrance channel manipulation on lake flood behaviour and water quality;
  • discuss other options for alleviating water quality and flooding concerns;
  • undertake an economic assessment of the various management options in terms of their cost, reduction in flood damages and improvements in water quality.

Additional Information

Field Value
Title Lake Conjola Entrance Study
Publication Date 4 May 1999
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Shoalhaven City Council
Author/ Prepared by Patterson Britton & Partners
Publish date 11 July 2019
Update date 11 July 2019
Approval State Approved
Submitted for approval 12 July 2019
Submitted by Akhil Sud
Approved 12 July 2019
Approved by dstazic
Identifier 1a473fff-9076-4915-91c4-534ba4b417eb