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The Courthouse and offices will be CLOSED Thursday, July 4, 2024 in observance of Independence Day. Normal hours will resume Friday, July 5, 2024. (The Auditor's Office will also be CLOSED Friday, July 5, 2024.)

Engineer/Secondary Roads


201 State St. · First Floor
Boone, IA 50036
Driving Directions

Contact Information

515-433-0530 (Office)
515-236-9112 (Boone Shed)
515-275-4008 (Ogden Shed)
515-795-2825 (Madrid Shed)
515-433-0532 (Fax)


Monday - Friday
8:00 a.m. - 4:30 p.m.
Holiday Closures

Our Team

Jonathan Bullock
Boone County Engineer
Nathan Ross, E.I.
Assistant County Engineer
Weston Williams
Engineering Tech
Tara Breon
Assistant to the Engineer I
Mackenzie Davis
Office Assistant
Tim Herrstrom
Maintenance Superintendent

Engineer/Secondary Roads

The Secondary Roads Department is in charge of construction and maintenance for all of the county roads and bridges. This includes 192 miles of paved and 786 miles of granular surfaced roadways. Excluded from the county system are roads that are located within the corporate limits of any town, as well as highways on the State system (i.e. U.S. Hwy 30 and Hwy 169, IA Hwy 17, Hwy 144 and Hwy 210). 

The Department has 35 employees, with 30 assigned to the Maintenance division. The engineer, assistant engineer, technical and administrative staff are located in the Boone County Courthouse, Boone, Iowa. Main maintenance facilities are located at Boone, Ogden and Madrid. Satellite shops are located in Berkley, Boxholm, Mackey and Luther.

Maintenance Facilities

Boone Maintenance Garage
Foreman: Tony Powers
702 22nd St.
Boone, Iowa 50036

Madrid Maintenance Garage
Foreman: Mike Peterson
702 E. 3rd St.
Madrid, Iowa 50165

Ogden Maintenance Garage
Foreman: Bryan Zimmerman
119 W. Locust St.
Ogden, Iowa 50212

Map & Directions

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Mission Statement

The mission of Boone County is to be accountable to its citizens in providing innovative and high-quality government services in an economical, fair, professional, and courteous manner to enhance and protect the health, welfare, and safety of those who live and work in Boone County.