U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

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Materials Reference Library


The Materials Reference Library (MRL) is a storage facility that houses highway materials from the Long-Term Pavement Performance (LTPP) program's general pavement studies (GPS) and special pavement studies (SPS). Asphalt and portland cement, natural aggregates, and combinations of these materials in both loose and core form are stored in the MRL, along with LTPP distress film. An MRL inventory list of GPS and SPS materials, along with general information on the MRL and forms for requesting material are available from the MRL.



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FHWA Pavement Links

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More Information



» Aramis Lopez
E-mail Aramis
» Customer Service 202-493-3035
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101