Maintenance Division

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The Secondary Road Department is responsible for roadway maintenance, snow removal, tile crossing repair, drainage district tile repair, bridge and culvert repair, ditch cleaning, and roadway signing.

Normal business hours are from 7:30 a.m. to 4:00 p.m., Monday thru Friday.  Boone County maintenance forces do switch to 4 – 10 hour days per week during the summer months.

Roadway Maintenance
Contractors are hired to perform specialized maintenance activities on the paved roads such as resurfacing, crack sealing, pavement repair and pavement markings. County personnel are responsible for limited pavement repair, shoulder maintenance, mowing and brush control.

Granular surfaced roads are maintained by the application of gravel either through the annual contracted granular surfacing program, or by county personnel placing gravel in high traffic areas throughout the year.  Boone County's road system does contain several Level B or Minimum Maintenance Roadways.

Click on the link to see a location map of the level B roadways.

Boone County is divided into 3 maintenance territories.

Click on the link to see the Maintenance facility areas.

Bridge and Culvert Maintenance
County personnel perform routine maintenance on drainage structures within the right-of-way of the road system. Contractors are hired to replace larger structures and conduct specialized repair.  Bridges and culverts are inspected on a bi-annual cycle and posted with their load-carrying capacities.  As a reminder, agricultural equipment is required to follow these postings.

Here is a link to the map of the Bridge Load Limits.

Snow Removal
Each snow or ice storm has its own characteristics and must be dealt with accordingly.
Hard surfaced roads have trucks assigned to remove the snow and are the first to be opened following a snowstorm.  Curves, hills, bridges, and intersections will be treated with a sand salt mixture for icy conditions.  Granular surfaced roads are not treated for ice. Boone County utilizes motor graders to remove the snow on the gravel roads.

Details of the snow removal operations can be reviewed in the County Snow Ordinance.

Tile Crossings
A permit must be issued by the Engineer’s Office prior to installing a tile crossing on any County road, or before placing a tile outlet or inlet in the road right of way. Repair and maintenance of drainage tiles that cross County right-of-way are the responsibility of the County.  Repair and maintenance of tiles that run parallel to the road in the right-of-way are the responsibility of private landowners.

Drainage District Repairs
The Board of Supervisors are trustees for over 200 drainage districts within the county.  To report a problem regarding a county drainage district, please contact the Boone County Engineer's Office at 515-433-0530.  Employees from the road maintenance shops will perform routine repairs on the drainage district structures;  more extensive repair work may be completed by private contractors.  The term "county tile" is often misunderstood.  The property owners within a drainage district's boundaries are the owners of tile within the district;  the Board of Supervisors are trustees or caretakers of the tile for each district. 

Here is a link to some frequently asked questions about drainage districts.

Ditch Cleaning
The County cleans ditches to maintain and improve roadway drainage.  Ditches are also used for snow storage during the winter. Prior to cleaning a roadway ditch, as with any excavation, Iowa One-Call has to be notified to locate any underground utilities in the area. . Material removed from the right-of-way during ditch cleaning operations is utilized by the County for field entrance construction, shoulder repair, drainage district tile repair, or stockpiled for future County maintenance purposes.