Photo courtesy of Qatar Public Works Authority (Ashghal)
World-class expressway in Doha connecting West Bay, The Pearl and Lusail, delivering high-capacity lanes, major interchanges and resilient infrastructure.
Public Works Authority (Ashghal)
Doha, Qatar
CDM Smith served as supervision consultant for the Lusail Expressway, overseeing construction of a complex, multi-lane urban corridor while maintaining live traffic operations. We applied rigorous quality, safety and performance management across contractors and specialist works, coordinating bridges, canals, tunnels and intelligent transport systems, including the Al Wahda Interchange, featuring the tallest monument in Qatar formed by two large-scale steel arches weighing more than 9,000 tons in total. Global technical expertise, digital inspection tools and proactive risk management ensure schedule control, constructability and long-term corridor resilience.
The Lusail Expressway links West Bay, The Pearl and Lusail City, supporting urban growth and mobility. A defining feature is the Al Wahda Interchange, where twin steel arches span up to 146.52 m and rise nearly 99 m, creating a national landmark.
We supervised construction while maintaining live traffic and utilities. Works included complex staging and inspections across bridges and tunnels, including controlled installation of 54 prefabricated steel elements forming the Al Wahda Interchange arches.
The corridor integrates bridges, canals, cofferdams and micro-tunnel networks to enhance resilience and reduce environmental impact, while accommodating foundations and support systems for the asymmetric twin-arch configuration at Al Wahda Interchange.
We drew on global specialists to oversee quality, safety and constructability, including coordination of fabrication, transport and erection methodologies for large-span steel arch structures on a constrained urban site.
This project won the Engineering News-Record’s 2018 Global Best Project Award in Road/Highway Category.
The Lusail Expressway is a major urban transport corridor connecting Doha’s West Bay, The Pearl and Lusail City, designed to support long-term growth and high-capacity mobility. We provided construction supervision and technical oversight for this complex, multi-package project delivered within a dense, live urban environment. Works included bridges, tunnels, interchanges, utility corridors, canals and micro-tunnelling, requiring careful staging to maintain traffic flow and protect existing infrastructure. A defining element of the project is the Al Wahda Interchange, home to the country’s tallest monument—twin steel arches formed from 54 prefabricated steel components weighing more than 9,000 tons. The larger arch spans 146.52 meters and reaches 98.79 meters in height, while the smaller spans 139.84 meters and rises 77.56 meters. We supported quality assurance, safety, constructability reviews and coordination across international designers, fabricators and contractors, ensuring successful delivery of this landmark structure alongside the broader expressway works.
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Public Works Authority (Ashghal)
Doha, Qatar
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