CONTACT PERSONS:
Mr. Albert F. DiMillio
Geotechnology Res. Prog. Mgr.
Material Division (HNR-30)
Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101
Phone: (703) 285-2436
Fax: (703) 285-1144
Mr. Jerry A. DiMaggio
U.S. Department of Transportation
FHWA (HNG-31)
400 7th Street SW
Washington, DC 20590
Phone: (202) 366-1569
Fax: (202) 366-3378
For more information visit their home page: