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50+ Years
experience
Emergency
services
Trusted Civil Engineering Services in Pennsylvania
Established in 1918, our firm has built a legacy of excellence in civil engineering, surveying, and inspection services. With four offices across Pennsylvania and New Jersey, we specialize in transportation engineering, structural design, and site development, serving private developers, government agencies, and communities. Our team of licensed engineers and surveyors delivers tailored solutions while maintaining rigorous quality standards. We prioritize employee growth through a collaborative culture, ensuring technical expertise meets client needs. Decades of experience in bridge inspection, underwater assessments, and highway engineering position us as regional leaders.

Our commitment to innovation and reliability has earned recognition, including the ASHE East Penn Project of the Year award. We adhere to strict safety protocols and national inspection standards, managing complex projects like flood response and bridge preservation. Client satisfaction drives our approach, balancing cost-effectiveness with technical precision. Headquartered in Newtown, PA, we combine historical expertise with modern engineering practices to address evolving infrastructure challenges.
Services
Bridge Inspection Underwater Inspection Structural Engineering Highway Engineering Site Development Land Surveying
Details
  • Year established: 1918
Highlights and features
  • We have over 100 years of experience in civil engineering and infrastructure projects.
  • Our team includes licensed engineers with expertise in complex bridge inspections.
  • We maintain PennDOT National Bridge Inspection Standards certifications.
  • We operate four regional offices across Pennsylvania and New Jersey.
  • Our engineers hold credentials in six states including PA, NJ, NY, and DE.
Associations and certifications
  • PennDOT Certified Bridge Safety Inspector
Services
Bridge Inspection
Our certified engineers perform comprehensive bridge inspections following National Bridge Inspection Standards. We evaluate structural integrity, identify maintenance needs, and provide detailed load rating reports. Services include routine assessments, emergency inspections after incidents, and specialized evaluations for aging infrastructure.
Underwater Inspection
Specialized diving teams conduct underwater bridge inspections using advanced sonar and imaging technology. We assess submerged structural components, identify erosion damage, and recommend repair strategies while maintaining strict safety protocols. This service supports long-term infrastructure preservation.
Structural Engineering
We provide structural design services for bridges, buildings, and infrastructure projects. Our engineers develop rehabilitation plans, replacement designs, and retrofit solutions using modern materials and construction methods to meet current safety standards and longevity requirements.
Highway Engineering
Our highway engineering services include roadway design, traffic analysis, and safety improvements. We manage projects from initial planning through construction, ensuring compliance with federal and state transportation regulations while optimizing traffic flow and infrastructure durability.
Land Surveying
Professional surveyors deliver boundary surveys, topographic mapping, and construction staking services. We utilize GPS and 3D laser scanning technology to provide accurate spatial data for development projects, legal documentation, and infrastructure planning.
People
James S. White, Jr.
President
With over 34 years at PCS, he oversees operations and holds PennDOT bridge inspection certifications. Manages national bridge inspection agreements while serving on the company's Board of Directors.
John C. Wilhelm
Executive Vice President
38-year structural engineering veteran leads quality control. Licensed in six states, he specializes in bridge design and inspection while maintaining ASCE and ASHE memberships.
Aaron S. Detwiler
Executive Vice President
Manages bridge inspections across multiple states. With experience inspecting 2,000+ structures, he oversees projects for PennDOT, NJDOT, and federal agencies from the Phillipsburg office.
Paul Klemunes
Vice President
Licensed in six states, he directs structural design and inspection projects. Specializes in bridge preservation and rehabilitation with expertise in complex engineering challenges.
John P. Ziemblicki
Vice President
Structural design expert with experience in bridge replacements and NBIS inspections. Licensed in three states, he manages Pennsylvania and New Jersey projects from initial design through completion.
Questions
What engineering services does PCS offer?
We provide bridge inspection, structural engineering, highway design, site development, and land surveying services across four regional offices.
How long has PCS been in business?
Since 1918, we've delivered civil engineering solutions, making us one of the region's most experienced infrastructure firms.
Do you handle emergency bridge inspections?
Yes, our certified teams perform emergency assessments after incidents like floods or structural damage to ensure public safety.
Which states do you operate in?
We serve Pennsylvania, New Jersey, Delaware, and New York with localized offices in key transportation corridors.
Are your engineers certified?
Our team holds multiple state licenses and PennDOT bridge inspection certifications, ensuring compliance with national safety standards.