Geotechnical engineering and foundation design, subsurface investigation, excavation support design, and construction monitoring tailored to project needs
On-site and laboratory material testing with certified professionals ensuring quality compliance
We provide project-specific quality assurance and quality control management services, ensuring compliance with regulatory standards, safety protocols, and project specifications
IBC Chapter 17 special inspections for structural steel and concrete — including field welding, high-strength bolting, rebar placement, and cast-in / post installed anchors
Our in-house accredited materials testing lab is equipped with advanced technology to perform soil, concrete, and asphalt testing. We ensure accurate and reliable results through strict adherence to industry standards
Our specialized laboratory testing includes Job Mix Formula (JMF) development for Full Depth Reclamation (FDR) projects, ensuring long-term pavement performance
Crosshole Sonic Logging (CSL) and Thermal Integrity Profiler (TIP) to verify the integrity of deep foundations and drilled shafts
Specialized pavement and field testing including Lightweight and Falling Weight Deflectometer (LWD/FWD), IRI, skid resistance, Windsor Probe, and rebound hammer

ACI, VDOT, DEQ, WACEL and USACE certified technicians and inspectors

AASHTO, AMRL, CCRL, and U.S. Army Corps of Engineers accreditations

Extensive experience with DOT and large-scale infrastructure projects
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Dulles Engineering, Inc. ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act of 1964. If you need more information or special assistance for persons with disabilities or limited English proficiency, contact Ali Dar at phone number 571-521-9434 or email ali.dar@dullesengineers.com.