We help our clients to better understand, assess, manage and mitigate the risks and vulnerability of their water, wastewater and storm water infrastructure assets in light of population growth, urbanization, increase water demands, aging infrastructure and climate change.


  • Water Infrastructure Planning and Engineering
  • Hydraulic and Hydrological Modelling
  • Dams and Retaining Structures
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Increasing population growth and urbanization trends, rising water demand, aging infrastructure, and increasingly severe weather events triggered by climate change, are some of the key challenges faced by municipalities that are placing people, communities, and key infrastructure at risk in cities around the world.

With the likelihood of a future filled with climate threats and extreme weather events, particularly more frequent and powerful storms, sea level rise and flood event, policy makers, city planners, government authorities, municipalities and utilities need to move toward a greater understanding of the impacts to public health, property and infrastructure, economies and the environment and invest in water and wastewater infrastructure to further improve the resilience of key infrastructure. 

Resilience is about managing existing and future risks—preparing for the risks and consequences, understanding where their risks lay, identifying the critical and vulnerable points, and taking the steps to integrate resiliency into the planning process. Building stronger and better than before is crucial to protecting communities as well as infrastructure assets, and maintaining our society’s operational normalcy and efficiency.

WSP is well-positioned to establish collaborative teams that operate under one common operational picture to plan and engineer solutions for managing risk in the water sector.

Storm water management

WSP helps municipalities manage and dispose of storm water by developing solutions specifically tailored to their needs. Each development requires a proper stormwater management plan, which not only complies with the requirements of local authorities, but also enhances the environment while remaining cost effective. 

Across the world, we have delivered storm water best practices and control technologies, green storm water infrastructure planning, analysis and design as well as have designed stormwater management plans and engineered storm sewers, open and piped drainage systems, and storm water storage systems for cities, towns, highways and transit systems. We also have the necessary expertise to implement separate sewage systems and increase the capacity of combined systems. Our team is experienced with various types of holding reservoirs and has developed runoff management systems for reducing storm water flows. 

We offer comprehensive modelling and planning capabilities, and use the latest in computer simulation tools to simulate sewer system behaviour and predict runoff quantity and characteristics for the development of cost-effective stormwater and wastewater overflow mitigation measures.
With a full understanding of storm water management regulations and industry standards, we have provided design services for many advanced storm water detention facilities, helping our clients define and respond to storm water threats and develop management practices that address water quality issues. We have also contributed to stream restoration and protection as well as projects that use wetlands to mitigate the adverse impact of storm water.

Flood Risk Management

Climate uncertainties have altered both precipitation and coastal storm surge, in frequency and intensity. Floods can be caused by extreme precipitation, high currents, dust fractures, high sea levels, and deficiencies in existing drainage systems. The exploitation of new areas often leads to increased runoff and changed waterways. Consequently, the flood risk to communities is likely to increase dramatically. To create sustainable water drainage, planning is required at an early stage.

WSP has assisted municipalities and other public and private sector companies worldwide with flood studies and strategies for managing and protecting against high flows and water levels, dust fractures and clouds, both for existing and future scenarios.

Our team has the expertise to design, advise on and monitor all flood risk-related issues from the outset of a project, offering a full range of technical and management services from analytical modelling and in-channel design to strategic planning and construction supervision.  

WSP’s water resources and hydraulic specialists are experienced with a variety of flood control and conveyance facilities including levees, dams, canals, pump stations, detention basins and impoundments, and intake, flow diversion and outlet structures. We utilize our in-depth hydrologic and hydraulic engineering knowledge and apply our extensive experience to assist municipalities in safeguarding their communities and preventing loss of life and property.

 Our stormwater management and flood risk management services include:

  • Stormwater management planning
  • Drainage analysis and Infrastructure improvement design
  • Hydrologic and hydraulic design
  • Hydrotechnical engineering
  • Complex coastal and riverine hydrologic and hydraulic modelling
  • Fluvial geomorphology
  • Vulnerability assessments and hazard planning
  • Comprehensive watershed study design
  • Storm water best management practice design and inspection
  • Erosion and Sediment control planning
  • Flood Insurance Studies
  • Map maintenance requests and Map modernization initiatives
  • Riverine and Coastal post-flood hazard verification
  • Flood control structure design and inspection
  • Flood risk assessment
  • Floodplain analysis, management,  and flood forecasting
  • Flood defence breach analyses
  • Risk, cost and benefit analyses
  • Coastal and inland flood protection systems design
  • Climate adaptive engineering and asset management
  • Climate adaptation plans and preliminary studies