Engineering & Roads

Aaron Putnam, Polk County Engineer
5885 NE 14th Street, Des Moines, IA 50313
Phone:  (515) 286-3705
FAX:  (515) 286-3437
Email: Contact Engineering & Roads

The Engineering and Roads Division provides engineering and design of Polk County roadway projects, including local resurfacing and bridge replacement. The division is responsible for the maintenance of the Polk County Secondary Road System, including ditch cleaning, roadway surface repairs, bridge and culvert repairs, and snow removal.

The division responds to requests or concerns regarding roadway drainage and other drainage complaints, petitions for traffic studies, entrance permit applications, and permitting of utility or other work within the road right-of-way.

Engineering also administers the Polk County sanitary sewer system and issues oversize / overweight vehicle permits.

The division is also responsible for the mowing of weeds administered under the Weed Eradication Program.


phone 515-286-3005

Survey Information


Entrance Permits

Residences in unincorporated Polk County must apply for an entrance permit to modify an existing entrance or construct a new entrance to a secondary road.  Contact 286-3705 for more information or click on the link below for more detail explanations of the county's entrance and driveway ordinance. The application is also linked below.

Entrance and Driveway Ordinance

Entrance Permit Application

Oversize/Overweight Permits

Single Trip Permit/Round Trip Permit

  • $35.00/$70.00

Annual Oversize Permit

  • $50.00

Annual Oversize/Overweight Permit

  • $400.00


Click here for all applications

Appropriate fee must accompany the application before permit can be issued. Contact (515) 286-3705 for more information.