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NSW Flood Data Portal

Concept Design

Debris Control Structures for Allans Creek, Wollongong - Investigation and Concept Design Report

Allans Creek is a partly developed catchment within the Wollongong City Council Local Government Area. The catchment has an area of 42 square kilometres and is located to the South-West of the Wollongong CBD. The most prominent feature of the catchment is the Illawarra Escarpment, rising to the west of Wollongong up to Mount Kembla (534 m AHD) at its highest point. The sharp increase in elevation, with close proximity to the coast leads to intense orographic rainfall conditions within the catchment, resulting in high creek discharges for rare and extreme events.

An assessment of the potential sites and configuration of DCS at two locations (i.e. FM56 and FM58) has been undertaken. The assessment has been informed by the review of available data, a stream and debris source assessment, as well as a site inspection. The site inspection was undertaken jointly by RHDHV, OEH and Council personnel.

Additional Information

Field Value
Title Debris Control Structures for Allans Creek, Wollongong - Investigation and Concept Design Report
Publication Date 13 November 2017
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Wollongong City Council
Author/ Prepared by Royal HaskoningDHV
Publish date 11 June 2019
Update date 26 June 2019
River Basin 214 - Wollongong
Approval State Approved
Submitted for approval 11 June 2019
Submitted by Akhil Sud
Approved 26 June 2019
Approved by jhudson
Identifier 1611beb0-363a-4506-9817-7ef0571f53c2