Call Now
Website
Call
Business Details
12 Years
experience
Trusted Civil Engineering Solutions in Collegeville, PA
Founded in 2014, Yohn Engineering has established itself as a trusted civil engineering firm serving Southeastern Pennsylvania. Our expertise lies in navigating complex permitting processes and delivering tailored land development solutions for residential, commercial, and institutional clients. With a team of licensed professionals, including a Professional Engineer and Certified Professional in Erosion and Sedimentation Control, we combine technical proficiency with a client-centric approach. Our services span site permit acquisition, stormwater management design, and subdivision planning, supported by over two decades of collective industry experience. We prioritize efficiency in approvals while maintaining compliance with municipal regulations, ensuring projects progress smoothly from concept to completion.

Our commitment to quality is reflected in our professional affiliations with organizations like the American Society of Civil Engineers and Chester County Engineers. Through active community involvement, including roles on environmental and zoning boards, we demonstrate our dedication to responsible development practices. Our team's hands-on experience with projects ranging from single-family residences to large-scale developments positions us to handle projects of any complexity. By maintaining transparency throughout the engineering process, we build lasting relationships with clients who value our technical expertise and ethical standards. Our growth since inception reflects our ability to adapt to evolving industry demands while maintaining personalized service for every client.
Services
Site Permit Assistance Stormwater Management Design Land Development Approvals Subdivision Planning Erosion Control Consultation Stormwater Inspections Municipal Compliance Services Engineering Documentation
Details
  • Year established: 2014
Highlights and features
  • We offer 15+ years of combined experience in civil engineering permits and approvals
  • Our team secures timely municipal approvals through established local government relationships
  • We provide tailored solutions for projects ranging from small residential to large developments
  • Our licensed professionals maintain active roles in industry organizations for continuous learning
  • We combine technical expertise with personalized service for every client engagement
Associations and certifications
  • Professional Engineer (P.E.)
  • Certified Professional in Erosion and Sedimentation Control (CPESC)
  • American Society of Civil Engineers
  • Chester County Engineers
Services
Site Permit Assistance
We help clients navigate municipal permitting requirements for construction projects. Our team identifies necessary approvals, prepares documentation, and ensures compliance with local regulations. This service streamlines the approval process for structures ranging from small additions to large developments.
Stormwater Management Design
Our engineers create customized stormwater solutions that meet regulatory requirements while protecting environmental quality. We design systems that control runoff rate, volume, and quality through infiltration basins, underground storage, and proprietary systems tailored to each site's unique conditions.
Land Development Approvals
We guide clients through subdivision and land development ordinances, preparing feasibility sketches and final plans that satisfy municipal SALDO requirements. Our services include coordinating multiple permits and managing timelines for complex projects requiring approvals from various governing bodies.
Stormwater Inspections
We conduct professional inspections of stormwater management systems to ensure ongoing compliance with municipal regulations. Our process includes site evaluation, system functionality assessment, and preparation of detailed reports documenting maintenance needs and completed repairs.
Erosion Control Consultation
Our certified experts develop erosion and sedimentation control plans that prevent environmental damage during construction. We implement strategies that minimize soil disturbance while maintaining compliance with state and local regulations for earth disturbance permits.
People
Christopher C. Yohn
Founder & Professional Engineer
Licensed Professional Engineer with 15+ years of experience in civil engineering. Graduated from Villanova University with a Civil Engineering degree. Previously worked at Momenee and Associates before founding Yohn Engineering in 2014. Holds CPESC certification and serves on local environmental and zoning boards.
James R. Musselman
Staff Engineer
Professional Engineer with experience in AutoCAD training and civil engineering projects. Graduated from Drexel University with a Civil Engineering degree. Former applications engineer at ImaginIT Technologies. Specializes in technical aspects of engineering projects and municipal compliance requirements.
Questions
What types of permits do you help with?
We assist with drainage permits, grading permits, stormwater management permits, subdivision approvals, and specialized permits like NPDES and PennDOT highway occupancy permits.
Do you handle both residential and commercial projects?
Yes, we work on projects ranging from single-family residences to large commercial developments, including multi-family housing and institutional facilities.
What is stormwater management?
Stormwater management controls runoff rate, volume, and quality through designed systems that mimic natural water infiltration processes to protect water quality and prevent erosion.
How do you handle complex development projects?
We coordinate multiple permits, manage approval timelines, and prepare required documentation for subdivision and land development projects requiring municipal SALDO compliance.
Do you provide inspection services?
Yes, we conduct professional stormwater system inspections, prepare compliance reports, and document maintenance activities for municipal submission.
What areas do you serve?
We primarily serve Montgomery, Chester, Delaware, Berks, and Bucks Counties in Pennsylvania, with experience across various municipal jurisdictions.