CLSI has in depth experience in the planning, design, and permitting of a variety of civil engineering projects. This includes site development for residential, institutional, industrial, commercial, and municipal projects, as well as linear utility projects. These projects have been performed over the firm’s 40+ year history for both public and private sector clients.

CLSI understands current and proposed Federal, State, and local regulations and ordinances, which impact site development and utility projects. Having worked in the many of the Baltimore/Washington metropolitan counties, we are familiar with local jurisdictions and the review and approval processes. This is a benefit to our clients because it saves both time and money. CLSI designs and plans projects that can be implemented without surprises and which conform to environmental regulations.

Site development and linear utilities projects need to consider the following:

  • Environmental Resource Delineation
  • Impact Assessments
  • Federal, State, and Local Permitting
  • MDE Approval
  • Historical Trust
  • NPDES Compliance
  • Stormwater Management
  • Dam Safety Approval
  • Sediment and Erosion Control
  • DNR-Endangered Species
  • Forest Conservation
  • Earthwork Cut & Fills
  • Infrastructure Design
  • Mitigation Plans
  • Alternatives Analysis
  • Hydrogeologic Considerations
  • Wetlands, Floodplain, & Waterway Construction
  • Chesapeake Bay Critical Area

CLSI is experienced in considering each of these issues, and their permit and approval requirements in the planning design of facilities. Regulatory agencies are contacted and alternatives to environmental impacts are evaluated early to avoid any surprises and to enable implementation of the project. We have designed several innovative facilities which meet or exceed current regulations and are cost effective; such as in stream stormwater management facilities and inline shallow marsh pond retrofits.

Quick Links:



Coventry subdivision, Carroll County, MD
Westminster Marketplace, Westminster, MD
Greenview, New Market, MD





SWM Pond 4 028
Greeview, Frederick County – Sediment Control pond prior to conversion to final stormwater management configuration
Site 20110826 018
Clemsonville Road, Union Bridge, MD – CLSI prepared design and construction plans and performed NPDES compliance inspections throughout construction.

Key CLSI Engineering Services:

  • Site and Subdivision development plans (Feasibility thru Construction)
  • Redevelopment plans (Additions, changes of use, etc.)
  • Stormwater management design
  • Grading and sediment control design
  • NPDES compliance inspections
  • Stormwater management construction inspection & as-built preparation
  • Water and Sewer Utility design
  • Storm Drain and Culvert design
  • Expert testimony
  • Notice of Intent (NOI) support
  • Wetland and Waterways permit preparation and submittal
  • Floodplain Analysis
  • Dam Breach Analysis, Dam Hazard Classification Analysis
  • Drywell inspection and as-built preparation