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By design, most Portland cement concrete (PCC) pavements last for 20 to 30 years with minimal structural damage. The most common pavement deterioration after this time is increased roughness due to faulting or settlement and wheel path rutting due to studded tires. In the past, agencies used asphalt overlays to smooth the pavement. However, these were only temporary fixes that covered up the problem and did not address the cause. Diamond grinding has been used since 1965 and is an excellent procedure to repair PCC pavement roughness, increase friction and reduce tire pavement noise.

The IGGA offers a variety of resources that address this need. Below, please find case studies, technical articles, fact sheets and other resources.


Afton Interchange on Will Rogers Turnpike in Oklahoma Repaired Using CPR - September 2009
Arterial Street Rehabilitation in Ames, Iowa - February 2010
Bonville Upgrade, Coffs Harbour, New South Wales (NSW) Australia - September 2009
Building Safe, Quiet Roads in Duluth, MN - January 2011
Bullitt County, Kentucky Road Repair - September 2009
California State Route 85 Tested for Quietest Pavement: Diamond Grinding was the Solution - February 2010
Caltrans Research on State Route 58 Proves that Diamond Grinding is a Quiet Solution - April 2010
Concrete Patching and Maintenance for I-44 in Oklahoma City, Oklahoma - July 2009
Concrete Patching and Maintenance for I-84 in Box Elder County, Utah - April 2009
Concrete Patching and Repairs for I-94 in Dawson & Tappen, North Dakota - July 2009
Concrete Patching and Resealing Maintenance for Major City Roads in Glen Ellyn, Illinois - April 2009
Concrete Pavement Preservation Gives New Life to Cook County, Illinois Streets - November 2009
Concrete Pavement Restoration on State Highways in South Dakota - September 2009
Diamond Grinding Test and Trial Project in Winnipeg, Manitoba - January 2010
First Major Dowel Bar Retrofit Project in Nevada Restores Reno Highway - March 2010
Geiger Ready Mix Parking Lot, Olathe, KS - August 2011
Highway 21 Repairs, Newark, New Jersey - June 2009
I-440 Concrete Pavement Rehabilitation, Nashville, TN - July 2010
I-75, Troy, OH - September 2011
I-90 Diamond Grinding of Asphalt, Wall, South Dakota - June 2010
I-94 Repair from Upper Midwest to Upper Northwest Douglas & Grant Counties, Minnesota - June 2009
Infrastructure Improvements in Jonesboro, Arkansas - May 2010
Infrastructure Rehabilitation in Winnipeg, Manitoba, Canada - March 2010
Interstate 29 Southbound Between Highway 200A and Highway 200 - Hillsboro, North Dakota - April 2009
Interstate-44 in Oklahoma City, Oklahoma Utilizes Concrete Pavement Restoration - August 2009
John Kilpatrick Turnpike, Oklahoma City, Oklahoma - Interstate-40 Near Yukon to I-35 - April 2009
Minnesota Dept. of Transportation Utilizes Full CPR Toolbox and Diamond Grinding - September 2009
National Highway Route 60 / MT200, Great Falls, MT - February 2011
Olmsted County in Rochester, Minnesota - Still Benefitting from Long Term Solution - March 2009
Pavement Rehabilitation in Jamestown, ND - October 2010
Rapid Road Repair in Highlands Ranch, Colorado - October 2009
Roller Compacted Concrete Grinding in Aiken, South Carolina - September 2009
Runway 9L - 27R, Fort Lauderdale, FL - January 2011
Runway and Taxiway Pavement Improvements in DeKalb County, Georgia - February 2010
Runway Rehabilitation at Dyess Air Force Base - January 2011
Salt Lake City Concrete Pavement Restoration - January 2010
South Eleventh Street Profiling, Oskaloosa, IA - January 2011
US 52 Intersection Improvements and Resurfacing at Interstate 95, Florence, SC - April 2012
White Bear Lake Highway 61 - CPR Repairs Last 20 Years - September 2009


Buried Treasure Fact Sheet - May 2009
Concrete Grinding Residue Fact Sheet - June 2011
Concrete Pavement Surface Restoration Fact Sheet - June 2010
Concrete Stimulus Fact Sheet - March 2009
CPR for City Streets Fact Sheet - May 2009
Dowel Bar Retrofit: Do's and Don'ts - March 2010
Dowel Bar Retrofit Effective for CPR in Washington State Fact Sheet - March 2010
Dowel Bar Retrofit Fact Sheet - February 2010
FAA Recommends Grooved Runways Fact Sheet - February 2011
Partial Depth Repair (PDR) Fact Sheet - March 2010
Next Generation Concrete Surface (NGCS) Fact Sheet - February 2011


An Evaluation of Retrofit Load Transfer Materials and Dowel Bar Configurations (2001)
Diamond Grinding Finish Profile on PCC Pavements (Missouri Best Practice Policy)
Diamond Grinding Newly Placed PCCP (2005)
Does Diamond Grinding Affect the Structural Capacity and Service Life of Concrete Pavements? (2001)
Dowel Bar Retrofit Do's and Don'ts (2003)
Dowel Bar Retrofit Performance in Wisconsin (2010)
Dowel Bar Retrofit Project Database (Updated August 2009)
Dowel Bar Retrofitting in Buena Vista County, Iowa (2008)
Effectiveness of Diamond Grinding Concrete Pavements in California (2005)
Effects of Grinding on PCC Pavements (1999)
Evaluating Load Transfer Restoration (2002)
Evaluation of Dowel Bar Retrofits for Local Road Pavements (2008)
Joint Sealing Checklist (2002)
Long Term Performance of DBR in Washington State (2009)
Long Term Performance of Unsealed Jointed Concrete Pavements (2002)
Materials and Procedures for Repair of Joint Seals in Portland Cement Concrete Pavements - Manual of Practice - (1999)
Minimize Wheel Slap: Keep Your Joints Narrow (2004)
Minnesota State Aid Concrete Pavement Rehabilitation (CPR) Best Practices Manual (2006)
Pavement Surface Texturing and Restoration for Highway Safety (1974)
Performance Monitoring of Joint Load Transfer Restoration (1993)
Performance Testing of Experimental Dowel Bar Retrofit Designs Part 2 (2003)
Research Shows Concrete is Safe, Durable and Quiet (2004)
Sealing Joints and Cracks, Thin Resurfacing and Locating Voids Under Concrete Slabs
Strategic Planning for Pavement Preventive Maintenance (2002)
Ten Year Performance of Dowel Bar Retrofit (2003)


Diamond Grinding for Pavement Preservation (February 2010)
Diamond Grinding for City Streets (May 2010)
Diamond Grinding of Asphalt Pavement (November 2010)
Dowel Bar Retrofit (DBR) (June 2011)