Stormwater & Environment

The Stormwater and Environment team of J. Wyndham Prince develops 'state-of-the-art' Water Cycle strategies that deliver sustainability focused outcomes in 4 key areas:

Environmental     -     Social     -     Economic     -     Engineering

Projects range from large urban developments with two to three thousands allotments which include significant waterways and supporting stormwater management infrastructure, to medium density sites with one or two allotments or units. The team's strength is in integrating new ideas with real outcomes for clients. This comes from the company's 25 years experience in the investigation, design and construction of stormwater infrastructure.

The team pride's itself on it's ability to integrate advice and sustainable outcomes in a project team environment through its liaison with consultants, planners and architects to achieve solutions that often break new ground, whilst remaining 'constructible'. We have developed strong relationships with the State's regulating agencies, often working directly with them to reach environmentally sensitive, practical designs for stormwater management.

Our reputation for professional integrity and technical expertise, combined with our practical approach to implementation, has contributed in many 'award winning' Projects. Our experience has enabled us to identify the important aspects which, for our clients, make the difference; delivering functional, high quality, cost effective work, within the shortest possible timeframe.

Some of the core capabilities of the Stormwater and Environmental service include:

Stormwater Masterplanning - provide experienced advice into potential stormwater management issues or requirements that may affect the project. This includes review of development control documents, advice on expected flooding constraints and advice on possible stormwater management strategies that are aimed at assisting the preparation of Indicative Development Layouts. Consideration given for the development contribution and cost recovery potential through the Section 94 contributions scheme.

Flood Modelling & Hydraulic Analysis - we can undertake 1D and 2D floodplain modelling, in the investigation of existing flooding regimes and post-development flooding regimes. These also include the determination of existing catchment hydrology, and the determination of post-development catchment hydrologic regimes. This can input into stormwater masterplanning, development application documentation and detailed design investigation for construction purposes.

WSUD & Water Cycle Management Strategies - we provide best practice and industry leading solutions and outcomes for water sensitive urban design. This includes investigation, reporting, of concepts and details for the re-use of captured stormwater, re-use of grey water, irrigation options, water quality modelling for water body or raingardens and overall water balance. Consideration is given for the development contribution and cost recovery potential through the Section 94 Contributions scheme.

Urban Stormwater Networks & Stormwater Infrastructure - Road drainage systems for residential, commercial and industry development areas, based upon local Council criteria, to minimise extent of works and optimise the outcomes. Solutions for stormwater infrastructure include soft and hard engineered stream improvement works, stream stabilisation works, natural waterway and stream restoration designs and flood mitigation measures. On site and regional detention systems can be assessed and designed for conceptual masterplanning or development application and detailed for construction purposes. Major infrastructure includes culverts, creek / watercourse crossings and bridges. Consideration is given for the development contribution and cost recovery potential through the Section 94 contributions scheme.

Trunk drainage design - Major stormwater drainage systems through development areas, including open watercourses and underground drainage networks, designed to Council requirements. Consideration is given for the development contribution and cost recovery potential through the Section 94 contributions scheme.

Working maintenance requirements - Raingarden, wetlands, gross pollutant traps, stormfilter units, enviropods, all require consideration of on-going maintenance requirements. Their on-going efficiency relies upon practical and reliable maintenance regimes. These include simple monitoring after storm events to monthly, quarterly or annual maintenance/repair/replacement. Water quality infrastructure can require sampling and testing of inflow and outflow water to ensure the wetland or raingarden is achieving the required water quality improvement objectives.

Capital and ongoing cost estimation - Raingarden, wetlands, gross pollutant traps, stormfilter units, enviropods, all require consideration and assessment of initial capital costs, on-going maintenance (through the local council or private ownership), replacement of infrastructure and the whole of life cycle costing . These are all considered as part of the economic outcomes, and can influence the design and decision making process. We can prepare operation and maintenance manuals for these items of infrastructure.

---