We specialize in the transportation systems that connect our communities.

As our first major bridge project, this concrete and steel bridge over the Massawippi River, at the south limit of Lennoxville, Quebec, established the foundation for our continuously growing bridge practice.

Spanning 550 feet over the Saint-François River in Sherbrooke, this new bridge stood as one of the longest reinforced concrete bridges in Quebec. Use of this material was an innovation in Canada at the time and a testament to the power of progress through design.

To address significant development within Sherbrooke, Quebec, we proposed a new steel and reinforced concrete structure over the Magog River. The bridge opened in 1954.

Acting as the Owner’s Engineer, we oversaw successful completion of a new railway for the Port-Cartier Mining Company, now ArcelorMittal Mines Canada. Spanning 500 km, this freight railway in Quebec connected two mining cities with a vital port city. (stock illustration)

Built in 1965 across the St. John River in New Brunswick, the 600m bridge was part of the former Trans-Canada Highway network. Design brought an important regional connector still utilized today. (photo, 2015)

As the only crossing of the St. John River between Woodstock and the Mactaquac Hydro Dam in New Brunswick, this 380m bridge boasts a main span of 217m. The cable-stayed suspension design adds to the beauty of the surrounding landscape. (photo taken after 1967)

Built as part of the Trans-Canada Highway system, this cable-stayed bridge crosses the St. John River at Longs Creek in New Brunswick. Designed as a striking landmark, with a center span of 217m between the two towers, the structure complements the natural beauty of the surrounding landscape. (modern day photo)

In 1974, the firm was mandated to carry out civil engineering work required for expansion of Bombardier Transport’s La Pocatière plant and, subsequently, for the construction of an electrified test track for metro cars.

In the 1980s, funding was approved for a new rail line for southwestern Chicago. EXP was a key member of the team responsible for planning the Southwest Transit Project, known as the CTA Orange Line. The team planned station locations across two potential routes. The new line officially opened in 1993. (photo, 2006)

The Jackson Street bascule bridge, a vital crossing over the Des Plaines River, underwent major rehabilitation after 50 years of service. EXP developed an innovative two-piece girder design to eliminate fatigue-prone joints and bring even load distribution and long-term durability. This solution provided a cost-effective approach that improved structural integrity and extended the bridge’s operational life.

Located in Joliet, Illinois, the Jefferson Street bascule bridge spans the Des Plaines River and serves as a critical link between the community and its business district. Originally built in 1932, the 165-foot double-leaf rolling lift bridge required extensive modernization. EXP conducted a comprehensive field survey and delivered rehabilitation design for structural components, mechanical systems, and electrical controls. The redesign of the counterweight restored balance and reduced power usage by nearly 50%, while safety enhancements included a closed-circuit monitoring system and pier protection cell.

At its opening, the iconic new King Khalid International Airport in Riyadh, Saudi Arabia was one of the largest airports in the world. EXP provided geotechnical consulting and materials testing for this significant global aviation project. The materials testing teams provided inspection and testing of soils, concrete and asphalt for the entire project, with four on-site laboratories. (modern day photo)

Design of the new Autoroute 55 (Highway 55) in Sherbrooke, Quebec marked an important milestone in the growth of the region. Work began in 1981 and the first section linking Highway 55 to Route 216 was inaugurated in 1985.

Design of this iconic new structure offers spectacular views of Coaticook Gorge and the Coaticook River in Quebec. At the time of construction it was the longest suspended pedestrian bridge in the world. To this day, it is still one of the longest suspended pedestrian bridges in North America. (photo, 2021)

The 2.71-mile ATS is a driverless, fully-automated people mover operating 24/7, 365 days per year. EXP designed the entire structure and terminal connectors in a complex, restricted operational environment. This notable project was the recipient of multiple industry awards.

Design of this unique bascule bridge in Sheboygan, Wisconsin, redefined movable bridge design with new innovations. With no counterweight and a very simple and unusual structural framing system, the bridge also featured state-of-the-art, computer-controlled hydraulic bridge drive and control systems.

Design of this five-span highway structure spans between Lemeque and Miscou Islands near Caraquet in New Brunswick. Three main spans are steel plate girders of 110m, 160m and 110m.

Architectural and engineering services for the award-winning renovation of the Lake/Wells Subway Station in downtown Chicago. The fluid form of the canopies is derived from existing turn-of-the-century examples on Michigan Avenue, reinterpreted with a modernist sensibility.

Design of this multi-use bridge in Sherbrooke, Quebec, brought one the world’s first uses of reactive powder concrete (RPC), an ultra-high strength concrete. (photo, 2010)

This award-winning project relocated the northbound lanes of Lake Shore Drive away from the edges of Chicago’s lakefront - creating the new Museum Campus and Burnham Park. The resulting development is one of the most important civic projects completed on Chicago’s lakefront in the second half of the 20th Century.

The light-filled design transformed this 700 foot-long concourse, creating a new presence within the terminal at Chicago O’Hare International Airport.

As a first of its kind in the region, this LRT line was one of the longest fully automated systems in the world at the time of construction. The line includes both an underground component and elevated guideway, over and through highly variable and often unpredictable subterranean features. As part of the quality engineering team, EXP provided a solution utilizing an innovative load transfer design concept and ground penetrating radar technology to optimize pile systems – all critical to the success of the project.

The Old Plank Road Trail (OPRT) Bridge carries a bicycle path and pedestrian walkway along an old, abandoned railway alignment across US Route 45 in Frankfort, Illinois. With a unique and visually striking design, the pedestrian bridge's defining structural feature is an 82-foot tall A-frame pylon with bestriding the highway at right angles.

Design for reconstruction of the Western/O’Hare Station replaced the existing station and platforms. The original station was built in 1895 and renovated in 1935. The new station was designed as a background building to the restored, historically significant portions of the existing station.

Structural and geotechnical engineering for one of the largest single-structure garages in North America. At 4,800,000 SF, it accommodated 9,000 vehicles over eight stories with 2,000 tons of tendons.

Dubbed by the local press as the "Jewel of Indianapolis," this new tower was designed as a landmark - visible from miles around and symbolizing the airport as a gateway to the city of Indianapolis.

The Yong’an – Wuping Expressway (YWE) forms part of the National Expressway from Changchun to Shenzhen, running through the mountainous regions of northern Fujian Province. Spanning 195.3 km, the expressway includes 32 tunnels, 130 large bridges, and over 69 million m³ of earthworks. EXP provided design review, construction supervision and management, as well as local and overseas training for over 260 engineers as part of this major infrastructure program.

Enhancements to and renovations of the public areas in Concourses A and C brightened and heightened the sense of space. Design incorporated new finishes, lighting, wayfinding and public art.

Tubular steel frame design for one of only a handful of enclosed pedestrian bridges in Toronto. The bridge spans approximately 20 metres between two buildings, 4 metres in diameter and crosses about 10 metres above the road surface.

The 86 km Ankang – Maoba Expressway connects Ankang City to Maoba, near the Sichuan border, traversing steep mountainous terrain over its 86 km length. The four-lane asphalt expressway, designed for 80 km/h travel, includes 17 tunnels and 96 bridges, comprising approximately 74% of the route. EXP’s services included design review, construction supervision and management, reporting to the World Bank, and technical training for 180 local and international engineers.

Soils and materials engineering, quality assurance services for construction of a 425km stretch of this 6-lane highway - one of the longest highways in the world.

Designer of record for the new Juneau Avenue Vertical Lift Bridge and rehabilitation of the Wisconsin Avenue Vertical Lift Bridge in downtown Milwaukee, Wisconsin.

The National Highway Program provides critical transportation infrastructure within India. EXP participated in the design of two important aspects of the National Highway Program – the 100km Golden Quadrangle (NH2) and the 110 km NH5 program in the Tuni area.

The Yiba Expressway connects Yichang to Badong across the hilly terrain of western Hubei Province. The 173.65 km, four-lane expressway was designed for a speed of 80 km/h and includes multiple interchanges, tunnels, maintenance and monitoring stations and toll facilities, enhancing regional connectivity across central China. EXP provided design review, construction supervision and management, progress reporting, and training programs for local and overseas engineers throughout the project duration.

Design of a new 4-span steel girder bridge with composite deck – spanning approximately 230 meters over the Saint John River and connecting the communities of Clair, New Brunswick, and Fort Kent, Maine. The intersection within Fort Kent’s Main Street marks the beginning of the 2,369-mile-long US Route 1, the longest north-south road in the US.

Geotechnical and pavement design for a new 4-lane highway and road upgrades to the existing TransCanada Highway - the largest transportation infrastructure project in Saskatchewan’s history.

Design lead as part of the WestEnd Connectors DBF team. The ECWE project involves twin bored tunnels and associated structures and shafts required for a new subway extension along Eglinton Ave W in Toronto, Ontario. The extension spans 9.2km with 6 new stops and a terminal.

Transformation of this 22.5-mile corridor of I-66 has enhanced multimodal use and reliability with new express lanes, new transit routes, interchange improvements and bike/pedestrian trails. EXP provided bridge, structure and pavement design as part of this P3 project between Virginia DOT, the Department of Rail + Public Transportation and private partner, I-66 Express Mobility Partners.