The Boone County Highway Department is responsible for all roads, bridges, and small structures (less than 20-foot span) within Boone County which are not state highways and which are not within the corporate limits of a city or town. We are also responsible for bridges which have a span of 20 or more feet on all roads in Boone County which are not state highways.
Below you will find information regarding several components of the infrastructure our department maintains.
Boone County maintains 397 miles of paved roads and 335 miles of gravel roads. The map links below provide information on all of the roadways that fall within the jurisdiction and the road surface type of each segment of roadway. (Paved or Unpaved)
Since 2015 the Boone County Highway Department has annually inspected and rated every segment of our paved road system. This rating system (PASER) has become an industry standard and provides our department important information necessary to develop long range plans for pavement maintenance.
The PASER scale is a 1-10 rating system for road pavement condition developed by the University of Wisconsin-Madison Transportation Information Center and uses visual inspection to evaluate pavement surface conditions. The maps below include information, including PASER ratings for each of the paved road segments within our jurisdiction.
The Boone County Highway Department Maintains 190 bridge structures throughout the County. A bridge is defined as any structure with a clear span greater than 20’. The map links below provide basic information on all of the bridges that fall within our jurisdiction.
The Boone County Highway Department Maintains over 300 small structures throughout the County. A small structure is defined as any pipe or culvert with a clear opening/span greater than 48” but less than 20’-0”. The map links below provide basic information on all of the small structures that fall within our jurisdiction.
Every year, the Boone County Highway Department plans for several transportation projects across the entire county. These projects are based on best asset management practices and our long range planning efforts. The maps below outline the known projects in our current year plan.