Civil Engineering

Elevate Your Construction Projects
with Sill Engineering Group

At Sill Engineering Group, LLC (SEG), we specialize in Civil Engineering, Surveying, and Planning, primarily serving the Land Development industries. Our focus spans commercial, residential, and government projects, and we take pride in our expertise in the Central Maryland region, especially in Howard County. I am proud to say that SEG is uniquely qualified to offer comprehensive professional engineering and planning services. Our team is composed of highly experienced professionals, each skilled in different areas of engineering and planning, ensuring that we can meet a diverse range of project requirements with expertise and efficiency.


Civil Engineering Services:

Storm Drainage Design & Hydraulics

Expert solutions for effective water management, ensuring efficient drainage systems that minimize the risk of flooding and erosion.

Water & Sewer Design

Comprehensive infrastructure planning to create reliable and sustainable water and sewer systems that meet the needs of growing communities.

Project Cost Analysis

Transparent financial insights that empower you to make informed decisions and manage your project budget effectively.

Landscape Architecture

Blending aesthetic design with functional planning, including drainage, soil stability, infrastructure, and parameter planning, to create efficient and visually compelling outdoor spaces. More details: Environmental Engineering.

Roadway Design

Safe and efficient road design that prioritizes the safety of motorists, pedestrians, and cyclists while enhancing traffic flow.

Hydrology Analysis

In-depth water flow analysis to design resilient systems that withstand varying weather conditions and prevent water-related issues.

Site Planning

Strategic land utilization that optimizes site functionality, aesthetics, and environmental considerations for maximum project success.

Boundary and Topographic Surveys

Accurate surveys that provide essential data for decision-making, design, and construction processes.

As-Built Surveys

Precision post-construction surveys to verify that built structures align with the original plans and specifications.

Construction Stakeouts

Precise location markings to guide construction teams and ensure that structures are built according to design specifications.

Paving & Parking Design

Efficient parking solutions that balance functionality, aesthetics, and traffic flow to create user-friendly parking areas.

Traffic Control

Safe and smooth traffic management strategies that ensure organized movement, minimize congestion, and enhance road safety.

Well & Septic Design

Expertise in essential well and septic system design, ensuring reliable and environmentally compliant solutions.

Grading Plans

Precise grading plans for stability and proper land preparation, enabling successful construction and site development.

Preparation of Master Plans

Comprehensive master plans that guide sustainable developments, integrating infrastructure, environment, and community needs.

Construction Drawings

Detailed blueprints that serve as the foundation for accurate construction, ensuring the project is executed as planned.

Land Surveying

Precise measurement and mapping of land, providing essential data for property development, boundary delineation, and construction planning. Ensuring accurate property boundaries to prevent disputes, and to facilitate informed land use decisions.


High-precision surveys for real estate transactions, offering detailed information about boundaries, easements, and improvements.

NPDES Inspections

SEG specializes in NPDES inspections, ensuring compliance with the National Pollutant Discharge Elimination System.

Record Plats

Accurate and compliant documentation of property boundaries and features.

Discover tailored civil engineering solutions with SEG. Your vision is our blueprint.

columbia maryland

At Sill Engineering Group, we pride ourselves on our dedication to excellence, attention to detail, and commitment to delivering exceptional results. Whether you’re embarking on a new project or seeking to enhance existing infrastructure, our comprehensive civil engineering services are tailored to meet your specific needs. Contact us today to learn more about how we can help you achieve your project goals.