Our engineers apply proven methodologies and technologies to support our client's transportation goals, strengthening communities and positively impacting the quality of life. With significant experience in alternative delivery methods, our superior local knowledge is backed by the deep resources and stability of a national company.

The Expertise and Commitment to Deliver Excellence

We offer a high level of proficiency in addressing complex challenges resulting from continued growth, high traffic volume, overworked transportation networks, and aging infrastructure. We are tenacious problem solvers, committed to helping our clients develop and maintain an efficient transportation system.


Our engineers are committed to delivering infrastructure solutions and services that improve highways and enhance lives in the communities they connect. We perform studies, surveys, design and preparation of contract documents for primary and secondary roadways, urban streets, street intersections, multi-level interchanges, and major highways.

Infusing Past Experience into Every Project

Over the past decade, we have delivered more than $6 billion in critical transportation design-build projects, including the first public-private partnership in the Commonwealth of Virginia. Our long record of success in highway design enables us to infuse past experience and lessons-learned into every engineering project.


From simple culverts to complex interchanges and long-span bridges, our respected industry experts use the full spectrum of modern construction techniques and materials, including steel trusses, curved beams, box beams, precast/prestressed concrete, timber, and fiber-reinforced polymer spans, with unique architectural treatments and other features.

The Importance of Community Involvement

We know that community involvement can often make or break a project. Our long-term relationships and unmatched community understanding help shepherd projects through the Section 106, 4(f), and Green Acres processes, and involve interested parties and reviewing agencies, including environmental agencies, municipalities, local historical societies, and the public at-large.


We deliver inspection, engineering, and design services for buildings, stations, track, line structures, and maintenance facilities for freight, commuter rail, and mass transit agencies.

Meeting Your Unique Transit Needs

Regardless of the project type, we understand the universal rules for work on, over, adjacent to, and under the railroad. We meet the need to maintain operations, ensure safety and security, and minimize disruption to the travelling public and the surrounding environment.

Capital Rail Constructors: A Clark and Kiewit Joint Venture
We are a key team member on Phase II of the Dulles Metrorail project in Northern Virginia.

Ports and Intermodal

We offer expertise in a broad range of port-related planning and engineering services, including industrial land use planning, site master planning, due diligence, and environmental permitting. Our design services for marine terminals includes chassis depots, container storage areas, buildings, gates, track, and intermodal and maintenance facilities.

Long Term Value Added to Port Clients

For more than 40 years we have worked with federal agencies and large port authorities to support the evaluation, rehabilitation, and modernization of various piers and docks. Our experience in assessing the challenges, potential hazards, and vulnerability of coastal and inland ports has allowed us to develop recommendations for capital improvements and adaptation strategies to be made over time to improve terminal resilience.

Dewberry® Services
  • Bridge/structural engineering
  • Constructability and value engineering
  • Contract administration/construction engineering and inspection
  • Environmental services
  • Geotechnical engineering
  • Hydraulics/stormwater management
  • Highway/roadway engineering
  • Intelligent Transportation Systems (ITS)
  • Landscape architecture
  • Lighting design
  • Maintenance and protection of traffic
  • Site/civil engineering
  • Surveying and mapping
  • Sustainable design
  • Traffic engineering
  • Transit/transportation planning