Report

The last comprehensive inspection of the metal pipe test site on the Natchez Trace Parkway was documented in Report No. FHWA-RD-97-140, titled Durability Analysis of Aluminized Type 2 Corrugated Metal Pipe, from inspections that dated October 1994 to December 1996. The American Concrete Pipe Assn. performed an inspection on November 12, 2014, and the findings are presented in this report.