Business Details
32 Years
experience
Your Trusted Civil Engineering Partner in Beltsville, MD
Capitol Development Design (CDDI) has been delivering professional engineering and design services since its founding in 1994. Our team of civil engineers, land planners, surveyors, and geotechnical experts specializes in providing cost-effective, sustainable solutions for infrastructure projects across federal, state, and municipal sectors. With a focus on client satisfaction, we assign dedicated project managers to oversee every phase from inception to completion, ensuring promptness and thoroughness. Our technical expertise spans roadway design, stormwater management, utility systems, and land development, supported by cutting-edge surveying equipment and an AASHTO-certified geotechnical laboratory.CDDI maintains strict quality control protocols to expedite regulatory approvals while prioritizing environmental responsibility through innovative practices like recycled concrete testing. Headquartered in Beltsville, Maryland, we serve clients throughout the Mid-Atlantic region with NAICS-certified services in engineering, surveying, and construction inspection.
Services
Civil Engineering
Land Planning
Land Surveying
Geotechnical Engineering
Reprographics
Subsurface Utility Engineering
Stormwater Management
Construction Inspection
Landscape Architecture
GIS Mapping
Details
- Year established: 1994
Highlights and features
- We offer 28+ years of civil engineering expertise with senior-level project oversight
- Our dedicated project managers ensure continuity from planning through completion
- Sustainable solutions meet regulatory requirements while reducing environmental impact
- We utilize cutting-edge surveying equipment including 3D laser scanners and GPS systems
- AASHTO-certified laboratory guarantees precise geotechnical testing and analysis
Associations and certifications
- AASHTO
- ASTM
Services
Civil Engineering
Our civil engineers deliver comprehensive infrastructure solutions including roadway design, utility systems, and stormwater management. We provide full project lifecycle support from feasibility studies to construction oversight, ensuring compliance with federal and local regulations. Our team specializes in value engineering to optimize project costs while maintaining technical excellence.
Land Surveying
We offer advanced land surveying services using robotic total stations, GPS, and LiDAR technology. Our capabilities include boundary surveys, topographic mapping, and construction layout. The division maintains quality standards through regular equipment calibration and technician training programs to ensure measurement accuracy.
Geotechnical Engineering
Our AASHTO-certified laboratory conducts soil, concrete, and aggregate testing for construction projects. Services include subsurface investigations, foundation design recommendations, and construction material inspections. We provide specialized analysis for pavement thickness, slope stability, and earthwork monitoring to support informed engineering decisions.
Subsurface Utility Engineering
We employ ground-penetrating radar and vacuum excavation to identify underground utilities. Our four-tier quality system ensures accurate mapping for construction planning. This service prevents costly delays by identifying potential utility conflicts before excavation begins, enhancing project safety and schedule adherence.
Stormwater Management
Our stormwater experts design systems that comply with environmental regulations while preventing flooding. Services include hydrological analysis, detention pond design, and erosion control planning. We implement low-impact development techniques to manage runoff sustainably while meeting municipal permitting requirements.
People
Victor Chen
President/CEO
With 28+ years of civil engineering experience, Victor Chen oversees all technical operations and project management. He specializes in roadway design, utility systems, and construction management for major infrastructure projects.
Marwan F. Mustafa
Vice President
Head of Surveying Division with 23 years of expertise in boundary surveys, construction stakeout, and utility mapping. Manages field operations and technical training for survey crews across the Mid-Atlantic region.
Gary R. Butson
Vice President
40-year veteran in land planning and landscape architecture. Leads environmental compliance efforts and public engagement for large-scale development projects. Registered landscape architect in Maryland and Virginia.
Massoud Towhidi
Vice President
Civil engineering expert with 25 years of experience in hydraulics, hydrology, and site planning. Oversees infrastructure projects for educational, commercial, and recreational facilities across multiple states.
Questions
What geographic areas do you serve?
We primarily serve Maryland, Virginia, and the District of Columbia with engineering and surveying services.
Are your engineers certified?
Yes, our team includes licensed professional engineers and surveyors with AASHTO-certified laboratory technicians.
What engineering services do you offer?
We provide civil engineering, land planning, geotechnical testing, surveying, and subsurface utility engineering services.
How do you ensure project quality?
We maintain strict quality control through dedicated project managers and AASHTO-certified laboratory testing.
Can you handle government contracts?
Yes, we're certified with MDOT, DDOT, and other agencies for federal and state infrastructure projects.
Do you offer emergency engineering services?
We don't provide emergency services but prioritize timely completion of scheduled projects.
