Business Details
32 Years
experience
Trusted Civil Engineering Services in Beltsville, MD
Founded in 1994, Capitol Development Design (CDDI) has established itself as a leader in civil engineering, land planning, and surveying services. Our team of experienced professionals delivers sustainable, cost-effective solutions tailored to meet the unique challenges of each project. With expertise in roadway design, stormwater management, and geotechnical engineering, we prioritize client satisfaction through dedicated project management from inception to completion. Our commitment to innovation is evident in our use of cutting-edge technology, including 3D laser scanning and robotic surveying equipment. CDDI's in-house AASHTO-certified laboratory ensures precise materials testing, while our focus on environmental stewardship guides every design decision.We serve federal, state, and local clients across Maryland, Virginia, and Washington, DC, maintaining strict quality control to expedite regulatory approvals. Our reputation for excellence is built on over 25 years of successful projects, including university campuses, transportation hubs, and municipal facilities. By combining technical expertise with personalized service, we help clients navigate complex development challenges while adhering to budget and schedule constraints. Our team's extensive experience in public and private sector projects ensures clients receive practical, code-compliant solutions that stand the test of time.
Services
Civil Engineering
Land Planning
Surveying
Geotechnical Engineering
Landscape Architecture
Construction Management
Subsurface Utility Engineering
Storm Water Management
Utility Design
Permitting
Details
- Year established: 1994
Highlights and features
- We offer 28+ years of civil engineering experience with specialized expertise in roadway and utility design
- Our dedicated project managers oversee work from inception through final inspections
- We utilize cutting-edge surveying technology including 3D laser scanning and robotic systems
- Our AASHTO-certified geotechnical laboratory ensures precise materials testing
- We provide sustainable solutions that balance regulatory compliance with cost efficiency
Associations and certifications
- AASHTO
- ASTM
Services
Civil Engineering
Our civil engineering team specializes in roadway, highway, and utility design for municipal and federal clients. We provide comprehensive solutions including stormwater management systems, pavement thickness analysis, and hydraulic engineering. With expertise in value engineering and constructibility reviews, we ensure cost-effective designs that meet regulatory requirements while maintaining project timelines.
Land Surveying
CDDI's survey division offers conventional and high-tech surveying services across the Mid-Atlantic region. Utilizing robotic total stations, GPS, and LiDAR technology, we deliver precise boundary surveys, topographic mapping, and construction layout services. Our team specializes in challenging environments requiring 3D laser scanning and structural deformation monitoring for infrastructure projects.
Geotechnical Engineering
Our AASHTO-certified geotechnical laboratory conducts comprehensive materials testing for construction projects. Services include subsurface investigations, foundation design, and construction inspection for soil and concrete. We provide slope stability analysis, infiltration studies, and pavement design recommendations, ensuring structural integrity through rigorous quality control programs.
Subsurface Utility Engineering
CDDI offers advanced subsurface utility engineering using ground-penetrating radar and vacuum excavation. Our Level A-D quality assessments identify underground utilities to prevent construction delays and safety hazards. We provide detailed mapping and risk mitigation strategies for complex infrastructure projects requiring precise utility location data.
Storm Water Management
Our stormwater management services include hydrological analysis, detention system design, and erosion control planning. We develop compliant solutions for floodplain management and stream restoration projects. Using advanced modeling software, we create sustainable drainage systems that meet environmental regulations while protecting infrastructure from water damage.
People
Victor Chen
President/CEO
With 28+ years of experience, Victor Chen oversees all civil engineering projects and company operations. He specializes in multidisciplinary infrastructure design and has managed major projects including Dulles Metrorail Phase I and Takoma Park Municipal Center developments.
Marwan F. Mustafa
Vice President
As Head of Surveying Division, Marwan Mustafa leads teams in boundary surveys and construction stakeout projects. With 23+ years of experience, he specializes in utility mapping and land development engineering across the Washington, DC metropolitan area.
Gary R. Butson
Vice President
Gary Butson directs the Planning Division with 40+ years of experience in land planning and landscape architecture. He specializes in master planning, urban design, and environmental impact assessments, with expertise in Maryland and Virginia regulatory requirements.
Massoud Towhidi
Vice President
Massoud Towhidi leads the Civil Engineering Division, focusing on road improvements and stormwater management. With 25+ years of experience, he specializes in hydraulic modeling and floodplain analysis for residential and commercial developments.
Questions
What engineering services does CDDI offer?
CDDI provides civil engineering, land planning, surveying, geotechnical testing, and subsurface utility engineering services for public and private sector clients.
Do you handle large-scale infrastructure projects?
Yes, we manage complex projects including transportation systems, municipal facilities, and utility infrastructure across Maryland, Virginia, and Washington, DC.
Are your surveyors equipped with modern technology?
Our survey teams use robotic total stations, GPS systems, and LiDAR scanners to ensure precise measurements and efficient data collection.
How does CDDI ensure project quality?
We maintain AASHTO-certified laboratories, implement strict quality control programs, and assign dedicated project managers for continuous oversight.
Can you assist with environmental compliance?
Yes, we provide sustainable design solutions, stormwater management plans, and environmental impact assessments to meet regulatory requirements.
