Business Details
Your Trusted Partner for Civil Engineering Solutions
JNM Engineering has been delivering professional civil engineering, land surveying, and environmental consulting services for over 15 years. Our expertise spans land development design, stormwater management, and natural resource conservation, serving municipalities, developers, and homeowners across the Baltimore-Washington corridor. As a small, client-focused firm, we prioritize personalized service, leveraging cutting-edge technology and deep local knowledge to meet project goals. Our team of licensed engineers, surveyors, and environmental specialists brings extensive experience in regulatory compliance and sustainable design.We maintain active certifications through Maryland DNR, ISA, and LEED programs, ensuring technical excellence and environmental stewardship. Our commitment to responsiveness and tailored solutions has built lasting relationships with clients seeking reliable, code-compliant engineering services. By integrating forest conservation, drainage solutions, and site development planning, we address complex challenges while minimizing ecological impacts. This combination of technical proficiency, regulatory expertise, and client-centric approach positions us as trusted partners for land development projects of all scales.
Services
Stormwater Management Design
Land Surveying
Environmental Site Design
Forest Conservation
Drainage Solutions
Civil Construction Plans
Floodplain Studies
Arborist Reports
Land Development Feasibility
GAR Plans
Highlights and features
- 15+ years of Maryland-specific land development expertise
- Licensed engineers and certified arborists on staff
- Integrated environmental compliance and conservation planning
- Proven track record with municipal and private sector clients
- Specialized floodplain and stormwater management capabilities
Associations and certifications
- Maryland Department of Natural Resources (DNR)
- International Society of Arboriculture (ISA)
- U.S. Green Building Council (LEED)
Services
Stormwater Management Design
Our stormwater management designs include customized reports, construction specifications, and maintenance schedules. We handle projects from small residential systems to large regional ponds, ensuring compliance with environmental regulations. Our engineers use advanced modeling tools to create sustainable solutions that reduce pollution and protect waterways while meeting development goals.
Floodplain Studies
We identify unrecorded floodplain areas and prepare regulatory submissions for development approval. Our studies include detailed computations and mapping to assess flood risks. This early-stage analysis prevents costly surprises during construction and ensures compliance with local floodplain management requirements across Maryland jurisdictions.
Environmental Site Design
We implement low-impact development techniques that minimize environmental disruption. Our ESD approach combines planning strategies and green infrastructure to manage runoff. This includes permeable pavements, rain gardens, and conservation landscaping that meet Maryland's mandatory requirements while maintaining project feasibility.
Forest Conservation
Our DNR-qualified staff creates forest stand delineations and conservation plans that comply with Maryland law. We identify valuable forest areas for retention during development, reducing planting requirements and stormwater management costs. Early integration of forest conservation into site design optimizes both ecological and economic outcomes for clients.
Arborist Reports
Our ISA-certified arborists evaluate tree health and provide protection recommendations. We conduct detailed assessments including species identification, structural analysis, and preservation strategies. Reports include maintenance plans and retention potential evaluations to prevent construction-related tree damage while supporting development objectives.
People
James W. Witmer
Founder
Licensed Professional Engineer and Surveyor in Maryland with 15+ years of land development experience. Certified arborist and LEED green associate specializing in environmental compliance and sustainable design solutions.
Questions
What civil engineering services do you offer?
We provide stormwater management design, land surveying, drainage solutions, forest conservation plans, and civil construction documentation for residential and commercial developments.
Do you handle projects in Washington DC?
Yes, we prepare Green Area Ratio (GAR) plans and other required documentation for development projects in the District of Columbia.
Are your engineers licensed in Maryland?
Our team includes licensed Professional Engineers and Land Surveyors with active certifications through the State of Maryland.
Can you assist with environmental compliance?
We offer environmental site design, natural resource inventories, and stormwater tax credit program participation to meet regulatory requirements.
What stormwater management solutions do you provide?
We design regional ponds, small-scale practices, and erosion control systems that comply with Maryland regulations and Chesapeake Bay standards.
