Melbourne Water engaged DCE to assess options for the Mittagong Creek DSS to ensure development within the Wallan Structure Plan is protected from flooding from both overland flow and the Wallan and Mittagong Creeks.
Melbourne Water engaged DCE to assess options for the Mittagong Creek Development Services Strategy (DSS) to support development within the Wallan Structure Plan and ensure protection from flooding.
A two-dimensional hydrodynamic (TUFLOW) model was developed to simulate the complex hydraulics at the confluence of Wallan and Mittagong Creeks. The existing RORB model was updated to Australian Rainfall & Runoff 2016 standards in collaboration with Melbourne Water, ensuring all hydrological inputs were verified by stakeholders.
Four concept designs were modelled, considering site constraints such as the Yarra Valley Water sewer pump station and flood protection to the 1% AEP event. Rigorous sensitivity testing confirmed the model’s accuracy, with downstream flood mapping used to inform future urban growth.
The preferred DSS solution was optimised to minimise infrastructure requirements while maintaining effective flood protection for Wallan’s continued development.
Melbourne Wurundjeri
03 9813 7400
Level 3, 678 Victoria Street
Richmond VIC 3121
info@dceng.com.au
Geelong Wadawurrung
03 5246 1700
60 Moorabool St
Geelong VIC 3220
Brisbane Turrbal
07 3374 9000
Level 14, 167 Eagle Street
Brisbane QLD 4000
Dalton Consulting Engineers acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community.
We pay our respect to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.
