The City of Greater Dandenong engaged Engeny to undertake flood mapping and the detailed design of mitigation works.
Engeny’s work improved Council’s ability to manage flooding with a targeted approach to implementing structural mitigation works. The review and request of survey data provided confidence on the accuracy of Council’s existing drainage system and it’s performance with the existing conditions modelling highlighting the flooding hotspots.
Structural mitigation works were targeted to resolve these flooding issues with the flood reduction benefits quantified with modelling. Feasibility assessments, which included extensive communication with Council, informed the selection of preferred structural mitigation works and ensured key construction constraints and the potential social, economic and environmental impacts were considered.
This work advanced Council’s ability to manage flooding across the selected catchments draining into Mile Creek through Engeny’s work.
This work has included:
Following on from the flood mapping and mitigation study, Engeny has progressed the proposed structural works to preliminary designs. The project is currently in progress however detailed designs plans will ultimately be developed which will inform Council’s capital works program for several years to come.
The low to medium density residential areas in the township of Foster contain properties that are directly connected to the pipe drainage system and those with downpipes connected to the back of kerb. The relatively small size of the township enabled Engeny to adopt an innovative approach to flood modelling using ‘virtual pits’ to represent back of kerb connections for those properties not directly connected to the pipe drainage system. This approach meant that pit inlet capacity could be modelled more accurately within residential areas which was considered to be particularly important given the nature of flooding reported by residents.
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