
The IGGA offers case studies on pavement surfacing techniques and preservation/repair methods. Select the application(s), preservation/optimization technique(s) or pavement criteria/issue(s) to browse the case studies, or use the search function.
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CPR: Rebuilt to Last: US Highway 153, Mosinee, Wisconsin
On U.S. Highway 153 in Mosinee, Wisconsin, partial depth repair (PDR) and full depth repair (FDR) were utilized to restore structural integrity and ride quality. PDR addressed surface defects while FDR tackled deeper issues. These repairs have extended the pavement's lifespan and reduced maintenance costs. The project, completed in 2½ months, highlights the advantages of PDR for quickly addressing shallow problems at joints and extending pavement service life without the need for extensive overlays or replacements.
Application(s)
City/Municipal
Technique(s)
Full & Partial Depth Repair
Issue(s)
Structural/Material Issues
CPR: Rebuilt to Last: US 52 intersection improvements and resurfacing at Interstate 95, Florence, SC
The U.S. 52 Intersection at Interstate 95 in Florence, South Carolina, underwent full-depth concrete replacement and diamond grinding to address severe rutting issues. Diamond grinding created a smoother surface, and full-depth replacement ensured long-term stability. These efforts successfully restored the pavement's functionality and provided a durable solution expected to last more than 25 years.
Application(s)
City/Municipal
Technique(s)
Diamond Grinding, Full & Partial Depth Repair
Issue(s)
Structural/Material Issues
CPR: Rebuilt to Last: Concrete patching and maintenance for I-44 in Oklahoma City, OK
On I-44 in Oklahoma City, Oklahoma, extensive Concrete Pavement Restoration (CPR) measures, including diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR) and joint resealing were applied to address transverse joint faulting and improve pavement conditions. Despite challenges such as limited work windows and high traffic volumes, the project was completed successfully in 2005, resulting in significant improvements in pavement service life and ride quality.
Application(s)
Highway
Technique(s)
Diamond Grinding, Dowel Bar Retrofit
Issue(s)
Smoothness
CPR: Rebuilt to Last: Interstate 29 southbound between Highway 200A and Highway 200, Hillsboro, ND
Interstate 29 Southbound in Hillsboro, North Dakota, saw significant improvements in the International Roughness Index (IRI) through various concrete pavement restoration (CPR) techniques. Key components included diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR), partial depth repair (PDR), and joint resealing. Conducted primarily to restore load transfer and enhance skid resistance, the CPR methods targeted only the most deteriorated sections, demonstrating cost-effectiveness and flexibility.
Application(s)
Highway
Technique(s)
Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Issue(s)
Smoothness, Structural/Material Issues
CPR: Rebuilt to Last: Caltrans research on State Route 58 proves that diamond grinding is a quiet solution
State Route 58 in California implemented diamond grinding to reduce tire-pavement noise. This technique effectively addressed noise complaints, demonstrating a notable reduction in road noise. Conducted on a newly constructed section of SR 58, the study compared Caltrans standard longitudinal tined sections, burlap drag textures, and longitudinal broomed textures, as well as additional diamond ground and grooved sections. The research found that diamond grinding with 0.105-inch spacers provided the lowest noise levels among the test sections.
Application(s)
Highway
Technique(s)
Diamond Grinding
Issue(s)
Tire/Pavement Noise
CPR: Rebuilt to Last: Infrastructure rehabilitation in Winnipeg, Manitoba, Canada
Winnipeg, Manitoba, saw significant improvements in road smoothness and durability through comprehensive Concrete Pavement Rehabilitation (CPR) initiatives. The project encompassed several techniques, including diamond grinding, dowel bar retrofit (DBR), partial depth repair (PDR), full depth repair (FDR), and transverse joint sealing. These methods were chosen over an asphalt overlay due to their cost-effectiveness, resulting in significant improvements in road smoothness and durability.
Application(s)
Highway
Technique(s)
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Issue(s)
Structural/Material Issues

