Built for the Complexity of Modern Transportation
Confidence in an infrastructure and highway construction contractor starts with accountability and experience. For more than a century, Zachry has taken on complex transportation projects where active operations, tight work zones and intricate construction sequencing require coordination and disciplined execution. Our strength is in managing that complexity in the field. Experienced teams, extensive self-perform capabilities, specialized equipment and disciplined project controls allow us to coordinate structures, earthwork, utilities, paving and other critical scopes around the demands of each project. From signature bridges and major highway corridors to airports, ports and rail infrastructure, Zachry brings the scale and construction expertise to safely deliver transportation infrastructure communities depend on. For transportation projects requiring major utility relocations, underground electrical infrastructure or storm drainage, explore Zachry’s Underground Utilities capabilities.
Dependable Grit for the Most Demanding Highway Projects
Major bridges and complex interchanges require a heightened level of construction planning and field execution. Zachry builds complex bridges over waterways, signature structures and system interchanges where deep foundations, major structural components, roadway configurations, utility conflicts and demanding construction sequences must come together precisely. Our teams bring those moving pieces together through detailed traffic phasing, multidisciplinary coordination and field-driven construction planning, coordinating the people, equipment and critical operations these projects require while working around navigation, environmental constraints, continuous traffic shifts and surrounding transportation networks. The result is a workable construction sequence that keeps the project advancing while the transportation system remains in service.
Zachry constructs replacement bridges, pedestrian bridges, overpasses, underpasses, retaining walls and other major transportation structures. Our precast capabilities give large transportation projects a scalable source for structural components, providing greater control over production, quality and delivery as work progresses across multiple structures. Close coordination between structural work, earthwork, roadway construction and traffic operations allows each element to advance in the sequence the larger project demands.
Highway projects demand disciplined phasing, tight coordination and work that holds up under constant use. Our heavy highway construction crews know how to manage active traffic conditions, align with project requirements and keep critical highway improvements progressing. Whether establishing a new corridor or rebuilding infrastructure within an active transportation network, Zachry delivers highway and roadway projects at scale. Our experience spans greenfield construction, existing corridor reconstruction, corridor improvements, managed lanes and concrete paving. Our long-tenured crews, self-perform resources and extensive local subcontractor and supplier network give us the flexibility to sequence work around traffic, changing field conditions and major project milestones while maintaining the safety, quality and project execution transportation owners expect.
Airports present a unique construction environment: Every phase must account for security, aircraft operations, passenger movement and strict operational requirements. Zachry delivers both airside infrastructure, including runways, taxiways, aprons and airfield drainage, and landside improvements such as terminal roadways, parking, utilities and site development. Across both airside and landside projects, Zachry performs the foundational civil work these facilities depend on, including earthwork, subgrade preparation and placement, lime- and cement-stabilized subgrade, underground utilities and drainage. Our experience can support private airfields and FBO facilities as well as regional, commercial, international and federal or military aviation projects, adapting construction plans to the operating environment without losing sight of critical milestones.
Zachry performs below-ballast construction, earthwork and drainage, bridges and structures, grade separations and civil improvements for port and rail yards. By coordinating civil construction around active freight, rail and port operations, our teams can advance major infrastructure improvements while respecting the access, sequencing and operational requirements that keep these facilities operational.
Featured Projects
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ROOSEVELT MEMORIAL BRIDGE
The Roosevelt Memorial Bridge Replacement is a $408.4 million project that will provide a new crossing for U.S. 70 over Lake Texoma, strengthening a critical transportation connection between Bryan and Marshall counties and the broader southern Oklahoma and northern Texas region. Zachry Construction and Traylor Bros. are leading the design-build team for the project, which marks the first Modified Progressive Design-Build project in Oklahoma history. Built just south of the existing bridge, the new Roosevelt Memorial Bridge will feature four travel lanes, wider shoulders, and a 10-foot multi-use path for pedestrians and cyclists. Improvements also include widening the U.S. 70…
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LOOP 1604 FROM IH-10 TO US 281
The Loop 1604 Expansion Project is improving mobility, capacity, and safety along one of San Antonio’s heavily traveled corridors. Zachry, in a 50/50 joint venture with Austin Bridge & Road as North Loop Constructors, is delivering improvements along Loop 1604 from IH-10 to US 281. The project expands Loop 1604 from a four-lane expressway to a ten-lane facility, including new eastbound and westbound mainlanes, improvements to existing pavement, and portions of the planned IH-10 direct connectors. Additional work includes reconfigured auxiliary lanes, entrance and exit ramps, and widened mainlane and frontage road bridges. A major component of the project comes…
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PORT SAN ANTONIO TAXIWAY M
The Port San Antonio Consolidated Facility Package 3: Taxiway M project includes construction of new airfield pavement and supporting infrastructure at Port San Antonio. Zachry’s scope includes excavation and soil preparation, followed by lime treatment, cement-treated base, concrete paving, and asphalt paving. The project also includes site drainage, utilities, and flatwork to support the new taxiway infrastructure. The combination of pavement, utility, and drainage improvements requires careful coordination across multiple scopes to deliver a complete and durable airfield facility. Together, these improvements will provide the infrastructure needed to support continued development and operations at Port San Antonio.
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US 29/US 74 BRIDGE REPLACEMENT OVER CATAWBA RIVER
The North Carolina Department of Transportation selected Zachry Construction Corporation as the prime contractor for the U.S. 29/U.S. 74 bridge replacement over the Catawba River and the associated N.C. 7/U.S. 74 improvements in Gaston and Mecklenburg counties. The $78 million project will strengthen a critical transportation connection between Gaston and Mecklenburg counties while improving capacity, mobility and multimodal connectivity along Wilkinson Boulevard/U.S. 29-74. The corridor also serves as an important regional alternate route when emergencies divert traffic from Interstate 85. The project replaces the existing Catawba River crossing with a new 11-span, 1,145-foot-long bridge with six 12-foot-wide travel lanes and…
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HOUSTON SHIP CHANNEL BRIDGE EXPANSION
Ship Channel Constructors LLC (SCC), a joint venture between Zachry Construction Corporation and Traylor Bros., Inc., is constructing twin landmark cable-stayed bridges across the Houston Ship Channel while maintaining traffic on one of the region’s busiest roadways and waterways. The new bridges are designed to remove bridge foundations from the channel, supporting future widening and deepening of the waterway to accommodate larger vessels and strengthen the long-term capacity of the Port of Houston and the region’s maritime industry. Construction is being completed in phases, beginning with the new southbound bridge adjacent to the existing structure. The main span incorporates composite…
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TXDOT IH35 WIDENING AT RED RIVER BRIDGE
This is an eight-mile joint venture project with Austin Bridge & Road consisting of three new bridges over Red River and BNSF Railroad, adding mainline bridges over FM1202, drainage improvements, more than 500,000 square feet of various types of retaining walls, and adding additional lanes with a complete rebuild extending one mile into Oklahoma. There is also installation of a 500 ft. work Trestle spanning the Red River for Bridge Construction.
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