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Capitol Development Design Capitol Development Design, Inc. (CDDI) is a multi-disciplinary company founded in 1994. CDDI specializes in Civil Engineering, Land Development Planning, Landscape Architecture, Land Surveying and Geotechnical Engineering. The company is headquartered in Beltsville, Maryland. Our mission is to provide the best quality professional services to our clients, while assuring promptness and thoroughness on all projects.

Our mission at CDDI is to provide the highest quality and most cost effective engineering, surveying, land planning, and testing services to our clients, while assuring promptness and efficiency on all projects.
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CDDI provides a wide variety of services including Civil Engineering, Land Planning, Landscape Architecture, Surveying, Construction Management, Field Inspection, sustainable, efficient, economic, environmentally green site design. Our mission at CDDI is to provide the highest quality and most cost effective engineering, surveying, land planning, and testing services to our clients, while assuring promptness and efficiency on all projects.
Mr. Chen also prepares engineering plans and specifications on multidisciplinary projects for facilities, storm water management design, landfill closure and water transport systems. He is experienced in roadway design, utility design and relocation. He makes recommendations for value engineering for site development.
CDDI's Civil Engineers, Land Planners, Surveyors and Geotechnical Engineers provide cost effective technical solutions for Design of Roadways, Highways, Water, Sewer, Storm water Management, and Utility Design for various federal, local and municipal clients. Design services are provided for all phases of a project, from feasibility analysis to final inspection.
Capitol Development Design, Inc. (CDDI)'s Surveying Division provides a wide range of Professional Land surveying services throughout Maryland, Virginia and the District of Columbia. The Division consists of four groups e.g. Conventional Surveying, Heavy Construction, Specialty Surveys and GIS, which function independently to serve the project's needs.
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