![]() ![]() Next the material under the pavement is removed. Similar to a rehabilitation project, the pavement is removed first. Reconstruction of an Interstate highway is like starting from scratch. A roller is then used to compact the resulting material to form a good base for the new roadway pavement. If the pavement is concrete, a crushing machine pulverizes the roadway. If the pavement is asphalt, a milling machine grinds the roadway into fine particles that are hauled away for recycling. Together, all of these events can make for a rough ride on Arkansas Interstates.īy simply replacing the pavement, the smooth ride is restored. Expansion and contraction during the freeze-thaw cycle often results in potholes. Cracks can form too, and when they do, water enters the pavement and causes damage beneath the surface. Increasing volumes of traffic over time will have an impact on the driving surface. Although some projects might include an interchange or a few bridges, the bulk of the work is best described as removal of existing pavement and replacing it with new pavement. Interstate rehabilitation typically only involves replacement of the roadway driving surface. ![]() How is rehabilitating an Interstate highway different from reconstructing an Interstate highway? That includes the purchase of right of way and the construction of bridges and overpasses along the 284-mile corridor. To help bring these numbers into perspective, consider that in the late 1960s and early 1970s these costs were less than $1 million per mile to initially construct Interstate 40 from the Oklahoma state line to the Tennessee State Line. Bridge work will also extend the amount of time required to complete an Interstate rehabilitation project. Current estimates range from $63 to $106 per square foot. Work associated with bridges, overpasses and large drainage structures under the roadway can significantly increase the cost of repairing an Interstate highway. Although each job is unique, costs associated with performing a complete reconstruction of an existing Interstate highway are in the neighborhood of $5 million per mile. How much does it cost to rehabilitate an Interstate highway?ĭepending on the specific scope of work performed, costs range anywhere from $1 million to more than $4 million per mile to rehabilitate an existing Interstate highway. ![]()
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