Parade Streetscape Upgrade

The Parade Streetscape Upgrade aimed to enhance the functionality, flood resilience, and visual amenity of a 1.6 km section of The Parade. As part of this effort, WMS was engaged to perform flood modeling services to support DSE’s detailed design by assessing existing flood conditions and evaluating the impact of proposed design changes. The primary focus was on understanding overland flow behavior and ensured the upgraded stormwater system effectively handled rainfall runoff.

WMS enhanced previous hydraulic models with updates aligning with Australian Rainfall and Runoff 2019 guidelines. Improvements included topographical data refinements, sub-grid sampling, and quadtree mesh applications for more precise flow path representation and flood depth analysis. These refinements allowed for a more accurate assessment of minor overland flow paths and their interaction with the proposed streetscape features.

The flood modeling results confirmed consistency with previous assessments, while minor differences in flow depths and extents are primarily due to improved topographical accuracy. The analysis ensured that the streetscape design did not affect flood behavior and supported a safer, more functional urban environment for the NPSP Council’s Parade Masterplan.