Water transmission and wastewater conveyance

Projects Insights Sectors

Water is one of our most precious commodities. An efficient system for moving water and wastewater from points of collection to facilities for treatment before distribution or disposal is a hallmark of today’s most liveable cities.

WSP designs and manages the construction of water-supply tunnels, aqueducts, CSO tunnels and offshore outfalls, and deep shafts in all ground conditions. We offer complete advisory services for developing water transportation systems including planning, design, and construction management of required tunnels, pipelines, pump stations, flow control facilities, shafts, and special structures related to water and wastewater conveyance.

Significant population growth and population concentration in major cities, combined with a better appreciation of environmental issues and protection, demand a better way to provide water and wastewater services. Cities around the world are eager to clean up their waterways and to secure the water supply needed for prosperity and progress of their communities.

WSP offers complete advisory and engineering services for developing water transmission and wastewater conveyance systems, including planning, design, and construction management services. Our experience includes geotechnical investigations and assessments, ground improvement, and tunnelling design, including TBM, SEM, and micro-tunneling, tunnelling in gassy or contaminated ground, and seismic engineering to keep wastewater and water tunnels resilient and operable in the event of earthquakes or other natural disasters.

As the world is confronted with climate-change impacts, WSP provides innovative ways to protect communities during floods, reduce strain on water resources and support water availability.

WSP design team works extensively with the latest technology such as water system modelling, computational fluid dynamics modeling, surge and transient analyses, and digital twins to remotely monitor and optimize work activities and perfect schematics in virtual reality. Such an innovative and proactive approach allows rectify problems before ground is broken and reduce the likelihood of surprises arising during construction that could cause delays, extra costs or damage to surrounding structures.

Related projects

Queensland, Australia

Blackwater Creek Diversion

Re-locating and re-establishing an important ecological corridor at the Curragh Coal Mine was the focus of this project.

Protecting the Green Square Town Centre from Flooding

Sydney, Australia

Green Square Stormwater Drain

Green Square, between Sydney Airport and the city centre, is one of Australia’s largest urban renewal developments.

Sydney, Australia

Bondi Waste Water Treatment Plant

Expansion and upgrade of a critical community and environmental asset.

Australia

Desalination Plant Victoria

We designed the high-voltage electrical components for one of the biggest infrastructure projects in Victoria’s history.

Saudi Arabia

Transforming Flood Risks into Resilience

With people-centred engineering, the Jeddah Storm Water Program (JSWP) is more than an infrastructure initiative. It’s a transformative effort to protect lives, build resilience, and shape a more secure future for the people of Jeddah.

Washington, DC, USA

First Street Tunnel

During a storm event, the First Street Tunnel will store up to 30.3 million liters of combined sewer overflow in its 853 meters of tunnel and 4 shafts, preventing flooding in Bloomingdale and Le Droit Park.

Portland, Oregon, USA

East Side and West Side CSO Tunnels

The complex and highly successful combined sewer overflow (CSO) tunnel projects were key infrastructure components of the City of Portland, Oregon’s efforts to improve the water quality of the Willamette River.

New York, USA

Bay Park Conveyance Project

The project will help improve the water quality and coastal environment within the Western Bays of Long Island by upgrading existing wastewater management infrastructure.

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Missouri, USA

Lower Meramec Tunnel Project

The 6.8-mile-long tunnel project — the largest ever for Metropolitan St. Louis Sewer District (MSD) — will improve water quality within the Meramec River watershed and help ensure regulatory compliance.

Water Transmission and Wastewater Conveyance

Water Transmission and Wastewater Conveyance