 The report created by the AASHTO titled "Bridging the Gap: Restoring and Rebuilding the Nation's Bridges"  stated that nearly every one in five bridges is 50 years old or older, and that of the 600,000 U.S. bridges that nearly 152,000 , or one in four , need significant repair.
<clarity>  The report created by the AASHTO titled "Bridging the Gap: Restoring and Rebuilding the Nation's Bridges"  stated that nearly every one in five bridges is 50 years old or older, and that of the 600,000 U.S. bridges that nearly 152,000 , or one in four , need significant repair.
 AASHTO's report, titled "Bridging the Gap: Restoring and Rebuilding the Nation's Bridges" stated that nearly every one in five bridges is 50 years old or older, and that of the 600,000 U.S. bridges that nearly 152,000 , or one in four , need significant repair.