Civil Engineering Services in Maryland

Civil Engineering

Civil Engineering Services Across Southern Maryland and the Surrounding Region

From initial feasibility through entitlement, permitting, construction, and final closeout, COA Barrett provides civil engineering services for residential, commercial, institutional, municipal, and government projects throughout Southern Maryland and the surrounding region. Our engineers work alongside our in-house surveyors, land planners, and environmental professionals to identify site constraints early, develop practical design solutions, coordinate with reviewing agencies, and move projects efficiently from concept to construction. This integrated approach brings the right expertise together from the outset, promotes coordinated and practical design solutions, helps streamline project timeframes, and provides continuity throughout every stage of a project.

Civil Engineering

We provide a comprehensive range of civil engineering services to support site development, infrastructure improvements, and construction projects, including:

Site Feasibility & Due Diligence

Evaluate site conditions, development constraints, and project requirements to determine feasibility and support informed planning decisions.

Site & Construction Plans

Prepare concept plans, site development plans, and construction documents to guide projects from initial design through construction.

Residential Subdivisions & Planned Communities

Provide civil engineering services for residential subdivisions and planned communities, supporting site layout, infrastructure design, and development approvals.

Commercial, Industrial & Mixed-Use Development

Support commercial, industrial, institutional, and mixed-use projects with comprehensive site design and infrastructure planning.

Grading, Drainage & Storm Drain Design

Develop site grading, drainage, and storm drain plans to manage runoff, establish site elevations, and support proper drainage.

Stormwater Management & Environmental Site Design

Design stormwater management systems and environmental site design features to manage runoff and meet applicable regulatory requirements.

Erosion & Sediment Control Plans

Prepare erosion and sediment control plans to minimize soil loss, protect water quality, and meet construction permitting requirements.

Roadway, Parking & Accessibility Design

Design roadways, parking areas, sidewalks, and accessible routes in accordance with applicable engineering standards and ADA requirements.

Public & Private Water and Sewer Systems

Design public and private water and sewer systems to support new development and existing infrastructure needs.

Utility Design & Coordination

Coordinate utility extensions, relocations, and service connections to accommodate site development and minimize conflicts with existing infrastructure.

Pump Station & Pressure Sewer Design

Design pump stations and pressure sewer systems to support wastewater collection where conventional gravity sewer systems are not feasible.

Floodplain, Drainage & Hydraulic Evaluations

Evaluate floodplain conditions, drainage patterns, and hydraulic performance to identify potential risks and support regulatory compliance.

MDOT SHA Coordination & Permitting

Coordinate with the Maryland Department of Transportation State Highway Administration (MDOT SHA) on entrance design, roadway access, drainage, and permitting requirements.

Regulatory Agency Coordination

Coordinate with local, state, and federal agencies to navigate regulatory requirements, support project approvals, and facilitate permitting.

Cost Estimates & Bidding Support

Prepare engineer’s estimates and provide bidding support to help clients evaluate construction costs and prepare for project implementation.

Construction Administration & Field Coordination

Provide construction-phase support, field coordination, and plan revisions to address site conditions and help ensure projects align with approved engineering plans.