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Engineering Excellence for Infrastructure Development
Founded in 1976, Hall & Foreman (DEA) has built a legacy of excellence in engineering, design, and construction services. With over 47 years of experience, we specialize in transportation, land development, water resources, and energy projects nationwide. Our multidisciplinary team of engineers, planners, and environmental scientists delivers innovative solutions tailored to client needs. Recognized as a top 100 U.S. design firm by Engineering News Record, we combine cutting-edge technology with proven expertise.



Employee-owned through our Officer Program, we prioritize organizational stability and invest in professional growth. Our commitment to accountability, collaboration, and community impact has earned us Best Place to Work accolades. We maintain transparency through regular communication and adapt to evolving project requirements. Our flexible benefits program supports employee well-being while fostering long-term client relationships. DEA's core values drive sustainable outcomes that balance built and natural environments.
Services
Transportation Planning Land Development Hydrographic Surveys Environmental Compliance Rail Infrastructure Energy Projects Surveying Services Marine Engineering Project Management Urban Infill Development
Details
  • Year established: 1976
Highlights and features
  • 47+ years of proven success in engineering and construction projects
  • Employee-owned firm with shared commitment to project excellence
  • Recognized as industry leader in Engineering News Record rankings
  • Investment in cutting-edge technologies for precision engineering
  • Award-winning workplace culture supporting professional development
What people say
Award-winning workplace Cutting-edge technology Proven expertise Employee ownership Sustainable solutions
Services
Transportation Planning
We develop comprehensive transportation solutions including highway design, rail systems, and multimodal infrastructure. Our expertise covers complete street design, traffic engineering, and transit-oriented development. We integrate safety improvements with environmental considerations while maintaining compliance with federal and state regulations.
Hydrographic Surveys
Our precision navigation and nautical charting services support port development and coastal infrastructure. Using advanced sonar technology, we conduct underwater mapping for dredging projects and environmental assessments. This includes reservoir capacity surveys and marine geophysical investigations for infrastructure planning.
Environmental Compliance
We ensure projects meet environmental regulations through comprehensive planning and documentation. Our services include NEPA compliance, wetland delineation, and endangered species assessments. We develop mitigation strategies that balance development needs with ecological preservation requirements.
Rail Infrastructure
We design and manage rail systems including freight corridors, passenger lines, and intermodal facilities. Our expertise covers track design, signal systems, and rail yard modernization. We implement safety improvements while optimizing operational efficiency for both public and private sector clients.
Land Development
We create mixed-use developments integrating residential, commercial, and public spaces. Our services include site planning, stormwater management, and streetscape design. We specialize in transforming underutilized areas into vibrant communities while addressing zoning and entitlement processes.
People
Al Barkouli
Chairman and CEO
Leading the firm with over 30 years of engineering experience, Al Barkouli focuses on strategic growth and client relationships while maintaining technical excellence standards.
Sean Sullivan
Energy Business Unit Leader
With 25+ years in energy infrastructure, Sean directs complex power generation and transmission projects while ensuring regulatory compliance and technical innovation.
R.A. Plummer
Transportation Business Unit Leader
Specializing in transportation systems, R.A. manages large-scale highway and rail projects with emphasis on safety improvements and multimodal integration solutions.
Craig Sheahan
Water and Environment Business Unit Leader
An expert in water resources, Craig oversees environmental compliance and infrastructure projects focusing on sustainable water management practices and ecosystem restoration.
Jon Dasler
Marine Services Division Leader
With marine engineering expertise, Jon directs hydrographic surveys and coastal infrastructure projects using advanced mapping technologies for precision navigation solutions.
Questions
What services does David Evans and Associates offer?
We provide engineering, planning, and environmental services for transportation, land development, water resources, and energy projects nationwide.
How long has DEA been in business?
Since 1976, we've delivered infrastructure solutions with over 47 years of continuous service.
Where are DEA's offices located?
We operate in 10 states including Oregon, California, Washington, and Texas with our corporate headquarters in Portland.
What makes DEA different from other engineering firms?
Our employee ownership model, technical innovation, and commitment to community impact distinguish our approach to project delivery.
Does DEA handle emergency infrastructure projects?
Yes, we provide emergency response services including hydrographic surveys and infrastructure assessments during critical situations.