A cost-effective strategy for asset preservation

A combination of diamond grinding and concrete pavement rehabilitation (CPR) can significantly extend a pavement's service life

Maintaining aging infrastructure on high-traffic corridors is a critical challenge for transportation departments. The Minnesota Department of Transportation (MnDOT) faced this issue on US Highway 12, a vital route with aging concrete pavement, drainage problems and outdated pedestrian accessibility features.

To address this, MnDOT implemented a comprehensive rehabilitation strategy. This multiyear project, executed with several contracting partners, used Concrete Pavement Rehabilitation (CPR) and diamond grinding to restore the roadway's structural integrity and smoothness without requiring a full reconstruction. The phased approach minimized disruption to local communities, businesses and schools.

The project successfully delivered substantial improvements to the corridor. Key results include:

• Significantly extended service life for the existing concrete pavement through CPR and diamond grinding. 

• Achieved full ADA compliance in Litchfield, Darwin and Dassel with upgraded pedestrian ramps and sidewalks. 

• Enhanced safety for all users with improved drainage, a new pedestrian push-button station and a resurfaced rest stop.

This cost-effective approach to asset preservation earned a Merit award from the Concrete Paving Association of Minnesota (CPAM) and MnDOT.

Read the full case study to learn more about this award-winning project. https://ow.ly/Yuqw50Y8T8m