These projects keep highway pavements, bridges, bike paths and other assets in a good condition.

Preservation projects are normally given first priority preference. Many of these projects are developed from road inventories and inspections. Others are derived using Argus, a computer-based pavement management program which analyzes pavement testing results and generates a set of recommended projects for the next five years, given budget availability.

Lake County has made a significant investment in its pavements. the estimated cost to build the existing county roadway network today exceeds $2.1 billion. Preservation projects help to protect this investment, and provide smooth pavements and bridges to highway users.