The Miami County Engineer manages the planning, construction, and upkeep of all county roads, bridges, and public infrastructure. This office ensures safe travel, efficient traffic flow, and reliable drainage systems across 423 miles of roadways and 342 bridges, coordinating closely with township crews and the Board of County Commissioners. Residents and businesses rely on the office for timely updates, project information, and engineering services that maintain the county’s transportation network. From bridge inspections to culvert maintenance and roadway resurfacing, the engineering office applies advanced surveying and mapping techniques to keep infrastructure safe and functional.
Beyond routine maintenance, the office handles Right-of-Way permits, reviews construction plans, and supervises county-wide drainage projects, supporting both urban and agricultural areas. Its mapping department maintains over 13,000 survey plats, tax maps, and aerial imagery, providing accurate data for planning and property assessment. Visitors to the Miami County Auditor’s Home can access essential records and resources that complement these engineering and planning efforts. Traffic control, safety improvements, and emergency response coordination are also key responsibilities that protect travelers daily. By combining engineering expertise, detailed project management, and public engagement, the Miami County Engineer ensures infrastructure projects meet regulatory standards while enhancing community accessibility and safety.
What is the Miami County Engineer?
The Miami County Engineer is the official county office responsible for maintaining and improving the roads, bridges, and public infrastructure throughout Miami County, Ohio. This office ensures that residents, businesses, and local townships have safe, reliable transportation and well-managed public works services. The County Engineer’s Office operates under the authority of the Ohio Revised Code, coordinating with the Board of County Commissioners to plan, design, and maintain the county’s roadway and drainage systems. Their duties cover a wide range of responsibilities, from routine road maintenance to complex bridge inspections and engineering surveys. They also manage permits for construction within the county right-of-way, ensuring that all projects meet safety and regulatory standards. Residents interact with the office daily, whether it’s through reporting potholes, tracking road closures, or accessing public maps and tax-related data. Businesses benefit from the Engineer’s work because well-maintained roads and infrastructure improve logistics, delivery routes, and overall economic activity in the county.
Core Responsibilities of the Miami County Engineer
The Miami County Engineer oversees multiple aspects of county infrastructure, including:
- Road Maintenance: Paving, resurfacing, line striping, mowing, and snow removal for more than 423 miles of county roads.
- Bridge and Culvert Management: Inspecting and repairing over 340 bridges and 2,600 culverts to meet safety standards.
- Drainage Systems: Maintaining roadside drainage, agricultural tiles, and open ditches to prevent flooding and support local farming.
- Engineering and Surveying: Designing road and bridge projects, reviewing development plans, and providing technical support to townships.
- Mapping and GIS Services: Producing and updating tax maps, survey plats, aerial photos, and other geographic records to support planning and public access.
By coordinating these services, the Miami County Engineer ensures that the county’s transportation infrastructure remains safe, efficient, and ready to meet current and future demands.
Why the Office Matters to the Community
Well-maintained roads and bridges support public safety, economic growth, and efficient travel throughout Miami County. The office also serves as a resource for local townships, helping them maintain smaller roadways and drainage systems. Without this office, residents could face delays in repairs, poorly maintained infrastructure, and unsafe road conditions. Furthermore, the Engineer’s office plays a key role in public works projects that improve traffic safety, manage stormwater and drainage systems, and coordinate large-scale county improvements. These projects directly impact residents’ quality of life and contribute to the county’s long-term planning and development.
Duties & Responsibilities
The Miami County Engineer’s office manages planning, maintenance, and improvement of the county’s roads, bridges, and public infrastructure to ensure safe travel and reliable services for residents and businesses, working closely with township crews and state agencies.
Roadway System Maintenance
Maintaining Miami County’s roadways is a key responsibility of the County Engineer’s office, which oversees paving, resurfacing, line striping, mowing, and snow removal to ensure roads remain safe and functional throughout the year, while collaborating with township crews to cover additional miles, prioritizing heavily trafficked and rural routes alike to deliver consistent roadway upkeep across the county.
Bridge & Culvert Inspection & Repair
The office conducts annual inspections of bridges and culverts, assessing structural integrity, load capacity, and repair needs to ensure safety and prevent accidents, while scheduling maintenance or replacements as required, with proactive monitoring and attention to both bridge safety inspections and culvert performance to support the county’s infrastructure and reduce flood or traffic hazards.
Drainage & Culvert Infrastructure
Miami County’s drainage system, including open ditches, underground tiles, and grass waterways, is maintained to manage stormwater, prevent erosion, and protect both roadways and agricultural land, with the County Engineer overseeing repairs, debris removal, and water flow management to reduce flooding risks, improve roadside drainage, and maintain safe travel conditions for residents.
Engineering Design & Survey Services
The County Engineer plans and designs road and bridge projects from initial surveys to construction, providing civil engineering plans, surveying services, and Right-of-Way reviews to ensure all development complies with regulations, safety standards, and Ohio law, coordinating with local townships and state agencies to deliver durable, reliable infrastructure while supporting smooth project approvals and inspections.
Departments Under the Miami County Engineer
The Miami County Engineer’s office is organized into specialized departments that maintain roads, bridges, drainage, and mapping services, ensuring the community’s infrastructure is safe and functional.
Highway Department
The Highway Department manages the upkeep, repair, and improvement of over 423 miles of county roads, focusing on road paving, resurfacing, line striping, guardrail installation, traffic sign maintenance, snow removal, and roadside mowing. Crews respond quickly to emergencies like fallen trees or flood damage, while also monitoring road conditions and coordinating with township crews to cover smaller roads efficiently. Safety improvements are a constant priority, with regular evaluations of intersections, guardrails, and signage to reduce hazards, support highway construction projects, and maintain high standards of highway safety for all residents and travelers.
Mapping & Tax Map Department
The Mapping & Tax Map Department maintains accurate GIS maps, survey plats, record plats, and tax maps to support property assessment, land development, and county planning, including over 13,200 survey plats, 4,019 record plats, and 2,873 tax maps, along with aerial photographs. The department works closely with the Auditor and Planning offices to provide precise spatial data for infrastructure projects, construction, and permits, and offers GIS mapping services to residents, contractors, and county offices, ensuring property boundaries, drainage systems, and roadway planning are reliable and up to date.
Engineering Office
The Engineering Office oversees planning, inspections, and permitting for county road and bridge projects, reviewing site development plans, issuing Right-of-Way permits, and coordinating construction schedules to maintain public safety and regulatory compliance. Staff provide engineering guidance for drainage improvements, bridge upgrades, and roadway expansions, managing inspections and project oversight to ensure efficient, safe, and durable infrastructure. Residents and contractors rely on this office for site plan reviews, construction approvals, and answers to project-related questions, making it a central part of Miami County public works operations.
Projects & Public Services
The Miami County Engineer oversees a wide range of county projects that maintain and improve the safety and reliability of Miami County roads and infrastructure. From routine maintenance to major bridge replacements, the office ensures public services run smoothly and efficiently. The office manages both ongoing and completed projects that impact transportation, drainage, and community development. Residents are regularly informed of road closures, construction alerts, and improvements that enhance safety and mobility across the county. Each project is carefully coordinated with township crews, contractors, and public agencies to minimize disruptions and maintain consistent quality standards.
Major County Projects
The Miami County Engineer leads several key infrastructure projects each year. Examples include:
- Bridge Replacements and Repairs: Older bridges are inspected and upgraded to meet safety standards. Recent projects include multiple steel and concrete bridge replacements, improving durability and load capacity.
- Roadway Resurfacing and Pavement Upgrades: County highways receive regular maintenance such as asphalt resurfacing, pothole repairs, and line striping to ensure smooth travel.
- Drainage Improvements: Open ditches and underground tile systems are maintained and upgraded to prevent flooding and protect agricultural lands.
- Traffic Safety Enhancements: Installation of guardrails, traffic signs, and signal upgrades improves safety on heavily traveled roads.
These projects contribute to the overall reliability of Miami County’s road network and support long-term infrastructure planning.
Road Closures and Construction Alerts
Residents rely on timely updates about road closures and construction activity. The Miami County Engineer provides:
- Weekly Updates: Planned closures for road maintenance, resurfacing, and bridge work are posted online and in local publications.
- Emergency Alerts: Sudden repairs due to weather or accidents are communicated via phone, email, and county social media channels.
- Public Notices: Community meetings and project timelines inform residents and businesses about upcoming work.
By sharing these updates, the office helps drivers plan routes and avoid delays while keeping the county network safe and efficient.
Infrastructure Improvements
Infrastructure projects focus on both short-term repairs and long-term county development goals:
- Bridge Safety Projects: Regular inspections lead to proactive repairs, replacements, and reinforcements, ensuring bridges meet modern standards.
- Highway Modernization: Expanding lanes, improving curves, and upgrading intersections enhance traffic flow and reduce accidents.
- Drainage and Flood Control: Maintenance of culverts, ditches, and tile systems protects roads and properties during heavy rain or snow.
- Pavement & Roadway Upgrades: Repaving, striping, and road marking projects maintain a high standard of roadway quality.
These improvements help preserve county assets, reduce maintenance costs, and provide safe, efficient travel for all residents.
Permits, Regulations & How to Apply
The Miami County Engineer’s office issues permits for work that impacts county roads and rights-of-way. These permits ensure that construction, excavation, or traffic-related activities meet safety standards and protect public infrastructure. Obtaining a Right-of-Way permit in Miami County is required for any work within the county road limits, including utility installations, driveway connections, or roadside construction. The process ensures compliance with construction permits regulations and roadside excavation rules, keeping both workers and the public safe.
The Permits Process
All projects affecting county roads must go through the Miami County Engineer’s permit process. This includes activities that alter road surfaces, use the shoulder, or involve traffic control. The office evaluates each request to confirm safety, proper planning, and adherence to county policies.
Types of permits commonly issued include:
- Right-of-Way Permits: For digging, installing utilities, or other work within the public road area.
- Traffic Control Permits: For projects requiring lane closures, detours, or flagging.
- Construction Permits: For large infrastructure projects affecting county roads or bridges.
The office also reviews plans to prevent damage to drainage systems, culverts, and signage. Each permit is linked to safety and compliance standards, including Ohio Revised Code requirements.
Steps to Apply
The application process is structured to be clear and consistent. Applicants should follow these steps:
- Prepare the Project Information
- Include project location, scope, and detailed drawings if applicable.
- Identify traffic control measures needed.
- Submit the Application
- Applications can be submitted at the Engineering Department office or by mail.
- Include any required forms, signatures, and fees.
- Review and Approval
- The Engineer’s office evaluates the project for safety, drainage, and impact on county infrastructure.
- Applicants may receive feedback or requests for adjustments.
- Receive the Permit
- Approved permits outline conditions, required inspections, and timelines.
- Work must comply with all listed requirements.
- Inspections and Compliance
- County engineers may conduct inspections during or after the project to ensure proper completion.
Fees and timelines:
- Permit fees vary based on project size and type.
- Applications are usually reviewed within 5–10 business days, though larger projects may require additional evaluation.
Where to Find Permit Forms
Permit forms are available at the Miami County Engineer’s office:
Engineering Department
2100 N. County Rd. 25A, Troy, OH 45373
Phone: (937) 440-5656
Documents typically include:
- Right-of-Way Permit Form
- Traffic Control Plan Template
- Excavation and Roadside Work Checklist
Applicants should submit all completed forms and fees together to avoid delays. Forms include instructions for roadside excavation regulations, traffic control measures, and other construction permit requirements.
Contact Information & Office Hours
For anyone needing to reach the Miami County Engineer, all departments are accessible by phone, email, or in person during standard business hours. The office provides clear guidance for public works, road maintenance, permits, and emergencies. Residents, contractors, and visitors can contact the appropriate department depending on their needs. The Miami County Engineer’s office is divided into three main departments: the Engineering Department, the Highway Department, and the Map Department, each with dedicated staff and contact details. Using the correct department contact ensures faster service and accurate information.
Engineering Department
The Engineering Department manages road and bridge projects, engineering services, surveying, and permit processing. Individuals or businesses with questions about roadway projects, site development, or construction permits should contact this department.
- Address:
2100 N. County Rd. 25A, Troy, OH 45373 - Phone: (937) 440-5656
Fax: (937) 440-5659 - Email: engineering@miamicountyohio.gov
- Hours of Operation: Monday–Friday, 7:30 a.m.–4:00 p.m.
Highway Department
The Highway Department handles day-to-day road maintenance, paving, snow removal, and traffic control. Residents reporting potholes, requesting roadside maintenance, or seeking updates on county highway projects should reach this team.
- Address:
2100 N. County Rd. 25A, Troy, OH 45373 - Phone: (937) 440-5658
The department works closely with townships to maintain county roads, ensuring public safety and smooth traffic flow throughout Miami County.
Map Department
The Map Department creates, updates, and organizes tax maps, survey plats, and GIS data for the county. Anyone needing information on property maps, land records, or GIS resources can contact this department.
- Address: Safety Building, 201 W. Main St., Troy, OH 45373
- Phone: (937) 440-6025
Fax: (937) 440-6026
The team ensures maps and records are accurate and available for public reference, supporting county planning and property assessments.
FAQs — About Miami County Engineer
Residents often have questions about the Miami County Engineer and the services the office provides. This FAQ section answers common inquiries about road maintenance, permits, bridge inspections, and how to report issues. It helps residents find the information they need quickly while keeping county infrastructure safe and functional.
What does the County Engineer do?
The Miami County Engineer manages roads, bridges, and public infrastructure throughout the county to ensure safe travel and reliable maintenance. The office oversees over 420 miles of roadway, 340 bridges, and 2,600 culverts, coordinating repairs, inspections, and snow removal. Staff work with townships to maintain local roads and handle drainage, mowing, and traffic control. They also provide engineering support for construction projects and Right-of-Way permits. This office plays a key role in keeping county infrastructure safe and functional.
How can residents report a pothole or road issue?
Residents can report potholes, damaged signs, or drainage problems directly to the County Engineer’s office to ensure timely repairs. Reports can be made by calling the Highway Department at (937) 440-5658 or emailing with a description and location of the problem. Including photos can help staff assess the situation faster. Issues are prioritized based on severity, traffic impact, and safety. This reporting system helps maintain the county’s road network and traffic safety efficiently.
When are road closures and construction updates posted?
Road closures and construction updates are posted as soon as projects are scheduled to keep residents informed. The Miami County Engineer shares this information on the official county website and social media channels. Updates include paving, bridge work, and utility projects, as well as emergency closures due to accidents or severe weather. Detour routes and estimated reopening times are provided whenever possible. These updates help residents plan travel and reduce disruption on county roads.
How can someone request a permit from the County Engineer?
To request a permit, residents or contractors must submit the appropriate forms to the Engineer’s office to work safely in the road right-of-way. This typically includes a Right-of-Way Permit, project plans, and applicable fees. The office reviews each request for safety and compliance and schedules inspections if necessary. Permits commonly cover driveway cuts, utility work, and roadside construction. Following this process ensures work is completed efficiently without disrupting traffic or infrastructure.
What roads does the county maintain versus state or township roads?
The County Engineer is responsible for county highways, while townships and the Ohio Department of Transportation manage other roads. County-maintained roads include over 420 miles of roadway and all bridges and culverts. Townships handle approximately 268 miles of local roads within their boundaries. State highways fall under the management of ODOT. Knowing which agency maintains a road helps residents report issues and access services quickly.