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Business Details
50+ Years
experience
Trusted Engineering and Surveying Services in Mansfield, OH
Established in 1952, Shaffer, Johnston, Lichtenwalter, & Associates has built a legacy of delivering high-quality engineering and surveying solutions across Ohio. Our firm specializes in civil engineering, structural design, transportation systems, environmental infrastructure, and land development, serving municipalities, businesses, and individuals. With offices in Mansfield and Wooster, we combine decades of expertise with a commitment to innovation, ensuring projects meet modern standards while addressing community needs. Our team of licensed professionals brings technical precision and practical problem-solving to every endeavor, from bridge replacements to stormwater management.

Recognized as one of Ohios pioneering engineering firms, we continue to uphold the integrity and excellence established during our early work on the Ohio Turnpike. Clients trust our ability to navigate complex challenges, supported by our prequalification with the Ohio Department of Transportation for critical infrastructure projects. Through consistent service and localized knowledge, we remain a cornerstone of engineering excellence in the region.
Services
Structural Engineering Transportation Engineering Environmental Engineering Site Development Surveying & Mapping
Details
  • Year established: 1952
Highlights and features
  • We have over 70 years of engineering experience in Ohio.
  • Our team holds specialized expertise in bridge design and inspection.
  • Prequalified by the Ohio Department of Transportation for critical infrastructure projects.
  • We offer comprehensive civil engineering services for diverse community needs.
  • Our firm combines technical precision with localized market knowledge.
Associations and certifications
  • Ohio Department of Transportation
Services
Structural Engineering
Our structural engineering team specializes in bridge design, inspection, and rehabilitation. We provide load ratings, hydraulic analysis, and foundation solutions for state and local infrastructure projects. Clients benefit from our prequalification with the Ohio Department of Transportation for complex structural work.
Transportation Engineering
We deliver transportation engineering solutions including roadway reconstruction, traffic control, and multi-use trail development. Our expertise covers city streets, county roads, and state highways, ensuring safe and efficient mobility systems for Ohio communities.
Environmental Engineering
Our environmental engineering services focus on water distribution, stormwater management, and wastewater systems. We design pollution prevention plans and drainage solutions for municipal and commercial clients, addressing both regulatory compliance and sustainability.
Site Development
We provide site development for industrial parks, residential subdivisions, and commercial centers. Our services include topographic surveys, platting, and construction layout, ensuring optimal land use while meeting zoning and environmental requirements.
Surveying & Mapping
Our surveying team conducts boundary surveys, ALTA/ACSM standards, and construction staking. We support infrastructure projects with precise mapping and spatial data, delivering accurate documentation for legal, engineering, and development purposes.
People
Jeffrey S. Kennedy
Structural Engineer
Licensed Professional Engineer with expertise in bridge design and inspection. Leads structural projects, ensuring compliance with state standards and ODOT requirements.
Keith A. Amstutz
Civil Engineer
Experienced civil engineer managing transportation and site development projects. Specializes in municipal infrastructure and roadway design across Ohio communities.
Mark E. Purdy
Professional Surveyor
Licensed surveyor overseeing land mapping and boundary determination. Provides precise surveying solutions for engineering and development projects.
John 'Andy' Long
Environmental Engineer
Professional engineer and surveyor focusing on environmental systems. Designs water distribution and stormwater management solutions for municipal clients.
Questions
What engineering services do you offer?
We provide structural, transportation, environmental, and site development engineering, along with surveying services for Ohio municipalities and businesses.
Are you licensed to work in Ohio?
Yes, our team includes licensed Professional Engineers and Surveyors qualified to deliver services across the state.
How long have you served Ohio communities?
Since 1952, we've provided engineering solutions, beginning with our work on the Ohio Turnpike project.
Can you handle state transportation projects?
We're prequalified by the Ohio Department of Transportation for bridge design, inspection, and roadway projects.
What types of surveying do you perform?
We conduct boundary surveys, ALTA/ACSM standards, construction staking, and topographic mapping for development projects.