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Franklin County Engineer

As a local public works agency headquartered in Columbus, Ohio, the Franklin County Engineer's Office is responsible for the maintenance and construction of 271 miles of county roadway and 351 county bridges, as well as upkeep of all county ditches, drains, retention basins, and other storm water facilities within the right-of-way of county roads in unincorporated areas. To meet the continuing development and infrastructure needs of Franklin County, the Engineer's Office utilizes the latest technologies for determining and maintaining roadway centerlines and boundaries; retracing and setting new monuments for original public land surveys; preparing geographic information system mapping for real estate tax assessments; and establishing precise countywide horizontal and vertical control to maintain uniformity in construction, surveying, and mapping.
Franklin County Engineer
Franklin County Engineer
March 16-22, 2025, is Severe Weather Awareness Week, a time to prepare for potential spring and summer weather hazards, including thunderstorms, lightning, tornadoes, and floods. Now is the time to review emergency plans, assess sheltering options, and ensure readiness for severe weather events. For preparedness resources and safety information, visit ema.ohio.gov.
Franklin County Engineer
Franklin County Engineer
It’s National Surveyors Week! Join #TeamFCEO in recognizing the dedicated surveyors who play a crucial role in shaping our communities! From mapping roadways and bridges to ensuring precise land measurements, their work is the foundation of safe and reliable infrastructure. We appreciate their expertise, commitment, and attention to detail in keeping Franklin County moving forward. Thank you, surveyors, for all that you do! #NationalSurveyorsWeek
Franklin County Engineer
Franklin County Engineer
Despite the wind and rain, #TeamFCEO had a fantastic time joining the City of Dublin, Ohio - Government for the Greenest and Grandest event of the year! The brisk weather didn’t dampen our spirits as we celebrated with the community and kept the tradition going. Thank you to everyone who came out to enjoy the parade. We’re proud to be part of this annual celebration!
Franklin County Engineer
Franklin County Engineer
Happy Pi Day! Today, we celebrate the mathematical constant π (pi), the ratio of a circle’s circumference to its diameter (approximately 3.14159). Whether you're calculating curves in engineering or enjoying a delicious slice of pie, pi plays a crucial role in shaping our world! At #TeamFCEO, we use pi in everything from roadway design to bridge construction, ensuring safe and efficient infrastructure for Franklin County. #PiDay
Franklin County Engineer
Franklin County Engineer
In celebration of Women’s History Month, we highlight Dr. Wanda M. Austin who is a trailblazing aerospace engineer and the first woman and first African American to serve as President and CEO of The Aerospace Corporation. She later made history again as the interim president of the University of Southern California. A leader in engineering, aeronautics, and STEM, Dr. Austin has served on numerous White House committees and received national recognition for her contributions. Her legacy continues to inspire future generations of scientists, engineers, and innovators. #WomensHistoryMonth
Franklin County Engineer
Franklin County Engineer
Engineer Fowler and staff hosted the 2025 Spring Programmatic Open House, providing a valuable opportunity to engage with industry partners and discuss upcoming infrastructure projects and improvements. We appreciate everyone who attended and contributed to the event’s success. Thank you for your participation and support!
Franklin County Engineer's Office
970 DUBLIN ROAD
COLUMBUS, OHIO 43215
(614) 525-3030
fracoeng@franklincountyengineer.org

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Surveying & Mapping Department

Surveying & Mapping Department

Rettke, Tony

TONY RETTKE, P.S.

Director of Surveying and Tax Map

The Surveying and Mapping Department performs a variety of surveys to meet the continuing development and infrastructure needs of Franklin County. Use of a countywide network of horizontal and vertical control monuments and the satellite Global Position System (GPS) enables the most accurate surveys necessary for the design of construction projects and the definition of road centerlines, property limits, and county, municipal and township boundaries.

“It is the responsibility of the County Engineer to maintain a current set of property ownership maps. These maps assist the County Auditor in keeping an accurate tax base” (Ohio Revised Code Section 5713.09).

The County Engineer has an office and staff in the Franklin County Administration Building, located at 373 South High Street, 19th Floor, Columbus, Ohio.  This office is known as the Tax Map Division.  The primary function of this office is to produce a set of maps which will display the current property boundaries, ownership, transfer dates, parcel numbers, acreage or lot number and subdivision names, as compiled from the information available from the Franklin County Records.  The following is a brief list of the Tax Map Division responsibilities and duties:

  • Update and maintain an accurate set of maps for the County Auditor
  • Check all real estate transfers for compliance to the “Transfer and Conveyance Standards of the Franklin County Auditor and the Franklin County Engineer” as well as the “Minimum Standards for Boundary Surveys”.
  • Check annexation plats for the County Commissioners regarding content and accuracy of the legal description and plat.
  • Check subdivision plats for compliance to the “Transfer and Conveyance Standards of the Franklin County Auditor and the Franklin County Engineer” as well as the “Minimum Standards for Boundary Surveys”.
  • Check Condominium Declarations for compliance to the “Transfer and Conveyance Standards of the Franklin County Auditor and the Franklin County Engineer” as well as the “Minimum Standards for Boundary Surveys”.
  • Maintain and create a comprehensive Highway Map for the entire county per Administrative Code.
  • Issue addresses for all new construction in the unincorporated areas of Franklin County.
  • Assist with the Location Based Response System (LBRS) initiative.