COWI Together with customers, partners and colleagues, we shape a future where people and societies grow and flourish.

We do that by co-creating sustainable and beautiful solutions that improve the quality of life for people today and many generations ahead. We do that by co-creating sustainable and beautiful solutions that improve the quality of life for people today and many generations ahead.​​​​​​​

Our starting point is gaining a deep understanding of our customers, their aspirations and concerns. This is wha

t sets us apart and how we deliver long-term value. Primarily located in Scandinavia, the UK, North America and India, we currently number 6,900 people, who offer our expertise in engineering, architecture, energy and environment.

Reconnecting East Harlem to the heart of New York City🍎 Phase 2 of NYC’s legendary Second Avenue Subway is officially on...
03/10/2025

Reconnecting East Harlem to the heart of New York City🍎

Phase 2 of NYC’s legendary Second Avenue Subway is officially on track - and we’re leading the design.

Here’s what’s in store:
✨ $1.972B investment in the city
✨ Extending the Q Line from 96th ➡️ 125th Street
✨ 1.5 miles of twin tunnels
✨ 3 brand-new ADA-accessible stations
✨ Fresh station shells + new community & retail spaces above ground

The impact? Less congestion. Faster, smoother commutes for 100,000+ daily riders. A city that feels even more connected.

As our Thomas Dahlgren, EVP of COWI in North America puts it:
“This is a technically complex job in one of the world’s most challenging underground environments. Our role is to bring the depth of COWI’s global tunnelling and underground design expertise to ensure constructability, safety, and efficiency are embedded in every stage of delivery.”

COWI has been appointed lead designer by Connect Plus Partners, and our role in the project includes managing the design, engineering, scheduling, and coordination to ensure safety, constructability, and efficiency throughout every phase.

🛠 Construction begins: 2026
🌀 Tunnel boring starts: 2027
🎉 Project completion: 2030

With 50 years of U.S. experience and 450+ tunnel design professionals worldwide, COWI is ready to shape the future of NYC transit - for today and generations to come. 🗽💛

Two countries — one bridge: The Øresund Bridge celebrates 25 years! 🌉Today, 25 years ago, the close ties between Denmark...
01/07/2025

Two countries — one bridge: The Øresund Bridge celebrates 25 years! 🌉

Today, 25 years ago, the close ties between Denmark and Sweden became even stronger as the two countries were physically connected. The Øresund Bridge stands as a powerful symbol of the Øresund Region, but it is more than just symbolic. Since the 2000s, the bridge has played a crucial role in the growth and development of the region.

The Øresund Bridge was not only a milestone in Danish bridge engineering; it also marks the end of an era in the 20th century during which many iconic large bridges were built worldwide. At the time of its construction, the Øresund Bridge was the longest span cable-stayed bridge in Europe to combine both road and rail traffic.

COWI carried out the detailed design for the contracting consortium Sundlink, encompassing a wide range of engineering disciplines beyond the design itself, including geotechnical studies, wind testing, comfort analyses for train passengers, and ship impact assessments. The bridge resulted from many years of meticulous planning and coordination across various phases, setting new standards for major infrastructure construction.

All bridge elements were prefabricated on land, then transported and assembled on site. The 49 steel connecting sections with concrete decks for the roadway were manufactured in Spain and shipped in pairs to Malmö, where the floating crane "Svanen" hoisted the 120- to 140-meter-long bridge girders into place. The caisson boxes supporting the pylons were produced in a dry dock in Malmö, and the high bridge girder was built in Karlskrona and transported to Malmö, where it was fitted with the concrete deck.

During peak periods, around 100 bridge engineers worked on the project, utilizing more than 4,000 technical drawings.

We wish the Øresund Bridge a happy 25th anniversary!

Take a trip down memory lane with images of the Øresund Bridge today, alongside photos from its construction phase.

For generations, the Fargo-Moorhead area has faced the relentless threat of flooding from the Red River 🌊 Recurrent floo...
27/03/2025

For generations, the Fargo-Moorhead area has faced the relentless threat of flooding from the Red River 🌊 Recurrent floods have wreaked havoc several times during the last century. Due to climate change, the population face an even greater risk of losing their homes and livelihoods.

But thanks to a staggering USD 3 billion investment, the Fargo-Moorhead Flood Diversion Project is not just ambitious and unique — it's also a lifeline for over 235,000 residents living and working in the twin cities of Fargo in North Dakota and Moorhead in Minnesota.

This massive infrastructure project includes a new 30 miles (48 km) diversion channel and several hydraulic structures to tame the flood waters of the Red River that divides the twin cities Fargo and Moorhead – and also forms the border between North Dakota and Minnesota.

In a joint venture with Hatch, COWI is responsible for the design of two interstate crossings, 11 county road crossings, three rail crossings, and 14 inlet structures. Furthermore, two aqueducts will let the Sheyenne River and the Maple River – tributaries to the Red River – pass above the channel. In this manner, the integrity of the rivers and the ecosystems is protected.

“This project is a major endeavour, and it is setting a standard for how to approach climate change adaptation. Due to the unique partnership model, all implied parties need to adapt, but it is a strength that we can combine forces from the private and the public sectors. To succeed with a project of this magnitude, you need close collaboration and coordination, and fortunately, we have had good partners on this project,” says John Chapman, Vice President and Market Director, Coastal Resiliency, United States.

Aamer Akram, PE Akram, Vice President and Head of Projects, COWI in North America, agrees:
“We have an excellent cooperation with our partners in this project. But one of COWI's strengths is our ability to draw on international experts from across the world. We are basically able to work around the clock on three different continents, which creates value for our customers.”

100 MW Expansion of Hellisheidi Geothermal Power Plant. The city of Reykjavik in Iceland relies 100% on geothermal energ...
01/11/2024

100 MW Expansion of Hellisheidi Geothermal Power Plant. The city of Reykjavik in Iceland relies 100% on geothermal energy for its heating needs. The city's growth calls for more heating, and COWI has recently won a tender by Orka náttúrunnar for a 100 MWth expansion of the district heating plant in the Hellisheidi geothermal power plant.

The ongoing expansion of the power plant will increase the heating output from 200 MWth to 300 MWth. The scope of the project, awarded to COWI in Iceland (formerly Mannvit), includes all engineering design, preparation of tender documents, and assistance until commissioning.

The extension of the plant will be fully operational in 2026. Once completed, the combined capacity of this renewable energy plant will be 303 MWe and 300 MWth. This increase in output will make it one of the largest geothermal power plants globally.

ON Power is the owner and operator of the plant that produces hot water for domestic heating in the capital area of Reykjavik, some 24 km away. We are thankful for the opportunity to continue working for ON Power on this exciting renewable energy project.

Circular Economy at its Finest

Next to the power plant, ON Power has placed a "Geothermal Park." The park encompasses a wide range of operations by third-party operators that utilize the resources from the geothermal plant. The park is a prime example of a circular economy, where CarbFix and Climeworks capture CO₂ and store it by pumping it underground, where it mineralizes. VAXA Impact Nutrition's algae cultivation production facility converts clean energy into food, producing the most sustainable crop in the world; microalgae rich in Omega-3 and protein. GeoSilica produces a 100% natural silica mineral supplement from geothermal fluids used in the power plant.

For more info on the plant 👇
https://www.cowi.com/projects/renewable-energy-heat-power-and-circular-economy-in-one/

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