Dulles Engineering, Inc. Information

Established in 2017, Dulles Engineering, Inc. is a trusted provider of geotechnical engineering, construction materials testing, and special inspection services throughout Washington, D.C., Maryland, and Virginia. Operating an AASHTO-accredited laboratory in Sterling, Virginia, we deliver field and laboratory capabilities under one roof, supporting projects of every size and complexity for public agencies and private clients alike. As a certified SWaM, SBE, DBE, and MBE firm, Dulles Engineering strengthens prime teams while delivering precise, timely, and actionable results. WHAT WE DO Geotechnical Engineering — Subsurface investigation, foundation and slope stability analysis, excavation support and trench protection design, and construction monitoring Construction Materials Testing — Soil, asphalt, aggregates, concrete, masonry, and structural steel, backed by our accredited in-house laboratory Special Inspections — IBC Chapter 17 inspections for structural steel and concrete, including welding, high-strength bolting, rebar placement, and anchors Quality Control Management — Full-lifecycle construction QC, field and environmental inspection, and detailed documentation and reporting Specialized Testing — Full Depth Reclamation (FDR), Job Mix Formula (JMF) development, Crosshole Sonic Logging (CSL), and Thermal Integrity Profiler (TIP) ACCREDITATIONS & CERTIFICATIONS AASHTO-Accredited Laboratory (R18) • CCRL • AMRL • USACE-MTC • WACEL SWaM • SBE • DBE • MBE Certified OUR EXPERIENCE Dulles Engineering supports the region's most significant infrastructure programs, working with agencies including MWAA, VDOT, DDOT, MDOT, FHWA, and DC Water, alongside leading prime contractors across the DMV. Our project experience spans deep tunnels, signature bridges, interstate widening, airport infrastructure, water and sewer systems, and data centers.