Business Details
50+ Years
experience
Professional Surveying & Engineering Services Midwest
Mohn Surveying has been a trusted provider of engineering and surveying services since 1975, specializing in hydrographic surveys, land surveys, construction surveys, and civil engineering solutions. Our team combines decades of experience with advanced technology, including drone-based data collection, to deliver precise and reliable results for clients across the Midwest. With expertise in municipal projects, rural development, and complex hydrographic environments, we serve Iowa, Wisconsin, and surrounding states. Our licensed professionals, including Roger Mohn and Jacob Mohn, bring technical excellence and a commitment to quality that ensures every project meets the highest industry standards.From shallow water surveys to civil engineering design, we provide comprehensive field-to-finish services tailored to client needs. Our use of cutting-edge tools like UAS drones and specialized software enhances efficiency while maintaining accuracy. For over 40 years, we have built a reputation for solving challenging surveying problems and supporting infrastructure development. Our focus on innovation, combined with deep regional knowledge, positions us as a leader in Midwest surveying services. Whether for government agencies, private developers, or engineering firms, we deliver actionable data and engineering solutions that drive successful project outcomes.
Services
Land Surveying
Hydrographic Surveying
Civil Engineering
Drone Services
Construction Surveys
Topographic Mapping
Sediment Removal Design
Floodwall Engineering
Subdivision Design
Volume Computations
Details
- Year established: 1975
Highlights and features
- We offer 40+ years of experience in Midwest hydrographic and land surveying
- Our team includes licensed Professional Civil Engineers and UAS pilots
- We specialize in challenging shallow water hydrographic survey environments
- We integrate drone technology with traditional surveying methods for enhanced accuracy
- Our civil engineering division has served the Midwest since 1986
Services
Land Surveying
We conduct precise land surveys for municipal subdivisions, rural developments, and single parcels. Our ALTA/ACSM standards surveys support property transactions while topographic mapping documents existing site conditions. With expertise since 1984, we deliver accurate boundary determinations and site analysis for development projects across the Midwest.
Hydrographic Surveying
Specializing in shallow water environments since 1975, we map inland lakes, rivers, and reservoirs using advanced bathymetric systems. Our services include pre/post-dredge volume calculations and US Corps of Engineers project support. We produce detailed cross-section plots and elevation models for flood control, dock projects, and environmental assessments along major Midwest waterways.
Civil Engineering
Our licensed civil engineers provide complete design services for municipal infrastructure and development projects. From sanitary sewer systems to agricultural building plans, we offer site design, construction management, and specification preparation. Since 1986, we've supported Midwest communities with stormwater management solutions and public improvement projects.
Drone Services
We deploy FAA-licensed drone operations for aerial data collection, using photogrammetry to create high-resolution topographic maps. Our DJI Matrice 600 Pro system captures detailed imagery for construction monitoring, environmental inspections, and inaccessible area surveys. This technology enhances traditional surveying methods while improving project efficiency and safety.
Construction Surveys
We provide complete construction survey support from initial site layout to final as-built documentation. Our services ensure accurate implementation of engineering plans for municipal projects, commercial developments, and industrial facilities. Using GPS and robotic total stations, we maintain dimensional control throughout the construction process.
People
Roger Mohn
Professional Civil Engineer & Land Surveyor
With over 40 years of experience, Roger Mohn leads our surveying and engineering operations. Licensed in Iowa and Wisconsin, he specializes in hydrographic surveys and civil infrastructure projects. His technical expertise drives our commitment to precision and quality across the Midwest region.
Jacob Mohn
UAS Pilot & Surveyor
Jacob Mohn brings three years of drone surveying expertise to our team. Certified in UAS photogrammetry, he operates our DJI Matrice 600 Pro system for aerial data collection. His technical skills enhance our ability to deliver innovative surveying solutions for complex projects.
Questions
What surveying services do you offer?
We provide land surveys, hydrographic surveys, civil engineering services, and drone-assisted mapping for municipal, industrial, and environmental projects across the Midwest.
Which states do you serve?
We operate throughout Iowa, Wisconsin, Minnesota, Illinois, Indiana, and Missouri, with particular expertise in Midwest waterway and rural development projects.
How long have you been in business?
Our hydrographic survey experience dates to 1975, land surveying since 1984, and civil engineering services since 1986.
Do you use drone technology?
Yes, we operate FAA-licensed UAS drones for aerial mapping and inspections, enhancing traditional surveying methods with photogrammetry and high-resolution imaging.
What civil engineering services are available?
We offer municipal infrastructure design, subdivision planning, stormwater management, and construction management services for public and private development projects.
Can you handle complex hydrographic projects?
We specialize in challenging shallow water surveys for US Corps of Engineers projects along major Midwest rivers and lakes since 1975.
