AWI South Capitol Street Corridor Bridges
Washington, D.C. · Bridges · Client: DDOT
Project details
Structural design and engineering services for the South Capitol Street Corridor bridges under the Anacostia Waterfront Initiative.

Dedication and Experience
Dadson Consulting, Inc. (DCI) is a structural engineering consulting practice based in Woodbridge, Virginia, specializing in the design of infrastructure such as steel and concrete bridges, tall retaining walls, modified box culverts, and underground structures. It provides construction administration and engineering services for the design and repair of commercial parking garages, access ramps, and pedestrian bridges. Additionally, DCI performs structural design and modification for select low-rise commercial and industrial buildings.
Daniel K. DadsonPresident
Christopher A. HudsonAssociate/Senior Engineer
Provides structural analysis and engineering design for regional transit infrastructure projects, utilizing advanced computer modeling to evaluate complex spans and foundation elements.
Applies specialized structural modeling to draft, analyze, and rate straight or curved bridge structures using high-performance steel and precast concrete components.
Evaluates geotechnical conditions to design deep and shallow foundations, including spread footings, steel piles, and drilled shafts.
Designs heavy-duty underground concrete structures, box culverts, and specialized utility manholes engineered to withstand aircraft and transit vehicle live loads.
Engineers temporary and permanent earth retention systems, such as timber lagging and sheet piling, to secure excavation zones during construction.
Develops structural foundation designs for highway signage, tolling structures, and traffic signal poles.
Delivers comprehensive structural engineering for low-rise commercial, retail, and industrial facilities.
Engineers load-bearing systems for low-rise facilities using timber, concrete, masonry, and structural steel.
Designs light-gauge steel framing and components for commercial structures.
Provides structural design for warehouses, asphalt plant foundations, and heavy industrial storage structures.
Engineers durable concrete slab systems designed to support vehicular traffic and heavy equipment loads.
Assesses structural integrity and identifies remediation requirements for aging or damaged building systems.
Performs condition assessments on concrete parking garages and access structures to diagnose structural fatigue and concrete spalling.
Evaluates structural expansion joints and waterproofing systems to prevent water ingress and preserve steel reinforcement.
Investigates concrete, steel, and masonry buildings to identify structural deficiencies and outline repair specifications.
Engineers specialized outdoor structures and soil-retention systems for commercial developments and residential subdivisions.
Designs free-standing and earth-retaining masonry, stone, or concrete walls to manage site topography.
Designs masonry walls, piers, and ornamental structural features for residential and commercial entranceways.
Offers construction-phase oversight to ensure compliance with engineered designs and regulatory guidelines.
Evaluates fabricator shop drawings, structural steel details, and rebar submittals to verify alignment with construction documents.
Conducts site visits, performs quality assurance inspections, and coordinates structural engineering issues on active job sites.
Verifies final constructed configurations against original design intent to compile accurate as-built records.
Designs physical security measures and perimeter barriers to safeguard critical infrastructure and commercial properties.
Bridges · Transportation · Highways & Roads · Parking · Commercial · Industrial · Residential
Washington, D.C. · Bridges · Client: DDOT
Structural design and engineering services for the South Capitol Street Corridor bridges under the Anacostia Waterfront Initiative.
Washington, D.C. · Bridges · Client: DDOT
Structural design and engineering services for the 11th Street Corridor bridges under the Anacostia Waterfront Initiative.
West Virginia · Bridges
Structural analysis, design, and load rating of a curved steel girder bridge.
Fairfax, Virginia · Highways & Roads
Live load rating analysis of a 900-foot, four-lane divided roadway structure.