This series consists of testimony, statements, witness lists, and other background materials regarding hearings on highway construction before the D.C. City Council, D.C. Department of Highways and Traffic (DCDH), and U.S. Congressional Committees. Of particular significance are materials regarding hearings before the City Council on the Interstate Highway System (1967-1968), the DCDH (1965) on the North Central Freeway, and the House Committee on D.C. in the late 1960s on such issues as federal payment for highway funding and rapid rail transit. Copies of federal highway legislation in the Federal Register and Congressional Record are also included. Folders are arranged alphabetically by title.