Chanhassen explains cost-effective road repair technique for deteriorating streets
The Chanhassen City Council discussed how the city manages and repairs its 119 miles of streets, focusing on a construction method called Full Depth Reclamation that helps the city balance repair costs when roads show significant wear.
During the meeting, city officials explained Full Depth Reclamation (FDR), a road repair technique the city uses for streets in poor condition. The method involves grinding up a road's existing asphalt and mixing it with the top part of the underlying aggregate base to create a new foundation layer.
The city applies FDR when roads score below 60 on the Overall Condition Index, a 0-to-100 scale used to rate road health. This objective measurement helps city planners decide which repair method to use for each street.
According to city officials, FDR represents a middle ground in road repair costs and scope. While more expensive and extensive than a simpler technique called mill and overlay, FDR avoids the significantly higher costs of total road reconstruction, which involves additional improvements beyond basic repair.
The discussion was part of the city's broader Pavement Management Plan, a strategic approach to prioritizing road work and scheduling construction and repairs across Chanhassen. The city has created a series of informational videos explaining its road repair selection process and techniques. Residents interested in learning more about ongoing projects can visit chanhassenm.gov/projects.
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