The future relies on safe and reliable transportation.

We’re reshaping and connecting communities with dynamic transportation – enhancing mobility with innovative and sustainable solutions.

Our practice spans expertise across the planning, engineering, design, construction and operation of the transportation systems moving people and resources. From aviation and transit to ports and waterfront to bridges and all forms of roadway, we deliver solutions focused on mobility, safety and the local environment.


Transportation, Top Design Firms in Transportation
ENR, 2024


Mass Transit and Rail, Top Design Firms in Transportation
ENR, 2023


Highways, Top Design Firms in Transportation
ENR, 2023


Bridges, Top Design Firms in Transportation
ENR, 2023


Top 40 Transit Facility Engineering + EA Firms
BD+C Giants, 2023


bridges inspected, planned, designed, rehabilitated, constructed

From multi-modal facilities spanning regions to urban and rural corridors, we help clients plan, design, build, rehabilitate and maintain their transportation infrastructure. Whether by road, air, rail or water, we’ve got it covered.

We provide a broad range of services across all transportation modes – from feasibility studies and environmental assessments to design, construction, program management and ongoing operations. We have helped solve structural challenges across thousands of bridges, delivered modernized solutions for highway and road networks, and used innovative approaches to enhance travel experiences, from airside to landside.


  • Airport Design
  • Bridge Design
  • Bridge Inspection
  • Construction Administration, Engineering + Inspection
  • Highway + Roadway Design
  • Intelligent Transportation Systems (ITS)
  • Lighting
  • Pavement
  • Railway Engineering
  • Traffic Engineering + Modeling
  • Transit Design
  • Transportation Environmental
  • Transportation Planning
  • Waterfront, Ports + Coastal

“We synthesize large amounts of data into usable, meaningful information to help our clients make informed decisions for their transportation assets.”

Dan Williams, PE, PMP, Vice President, Mid-Atlantic Transportation

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