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County Engineers Office

Jefferson County, Iowa

Home 9 County Engineers Office

Contact Info

Engineer: DeWayne A. Heintz, P.E.

Appointed by the Board of Supervisors

Office Hours:

Mon-Fri 7:00am – 3:30pm

Phone / Fax:

Phone: (641) 472-6528
Fax: (641) 469-3398


901 North 8th Street
Fairfield, Iowa 52556

Description & Duties

Jefferson County is responsible for the safety and quality of roads and bridges under the County’s jurisdiction, which consists of a total of 756 miles of county roads and 150 county bridges.

  • Dirt: 99 miles 
  • Gravel: 513 miles
  • Sealcoat: 11 miles
  • Concrete: 64 miles
  • Asphalt: 69 miles
  • Note: The State of Iowa is responsible for U.S. Highway 34, State Highway 1 and State Highway 78.

Responsible for design and construction on road and bridge projects within the county.

Responsible for the supervision of maintenance and construction on all secondary roads in the county.

Responsible for issuing permits pertaining to roadway and right of way use.

Responsible for the installation of traffic signs, maintaining road surfaces, ditch drainage, vegetation control and winter snow and ice removal.

Department News & Announcements

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Applications / Permits / Docs

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Note: Adobe Acrobat Reader may be needed to view PDF documents.  Get it here:

Annual Oversize PermitDownload
Entrance Permit Application for DrivewaysDownload
Subdivision Determination ApplicationDownload
Annual Dust Control Treatment PermitDownload
Application for use of County Road Right of Way for Utilities AccommodationDownload
Oversize/Overweight Permit (for a Single or Round Trip)Download
Iowa General Provisions for Oversize Load PermitDownload
Chapter 5-10 Subdivision OrdinanceDownload

Related Links & Resources

Iowa Department of Transportation:

Iowa DOT Travel Info (Winter road conditions after Nov 15):

Iowa Road Construction Update:

County, City and State Maps Online:

Notice: County Courthouse Offices will be closed on Monday, May 27, 2024 in observance of Memorial Day.

Temporary Polling Location Change: Fairfield 2nd Ward will vote at the County Engineer's Office, 901 N 8th St., Fairfield effective for the June 4, 2024 Primary Election.