• AASHO Road Test – Ottawa, IL

    Year Built: 1958

    The AASHO Road Test was one of the most ambitious test sections ever built and analyzed.  Six test loops were built in Ottawa, Illinois between 1956 and 1958 and the test was performed from 1958 to 1960. The test was designed to analyze the various structural responses of different pavement read more

  • Pittsburg Test Road – Second Test Road in U.S.

    Year Built: 1921

    The Pittsburg Test Road was sponsored by Columbia Steel Company. The test loops were built off of the roadway between Pittsburg and Antioch, California. The purpose of the test was to determine the benefits of using reinforcing steel in concrete pavements. This was the second known test road site in read more

  • Bates Road Test – Old US 54, New Berlin, IL

    The Bates Road Test was constructed in 1920 with over 63 test sections (32 PCC). Additional thickened edge sections were built in 1922. Liberty trucks with dual 5-inch solid rubber tires on rear axle were used. The Associated Press reported in 1926 that highway officials estimated that the pavement tests saved read more