Bridges. Another bridge on the Norris freeway, designed as a continuous concrete structure, cantilevered past the abutments. The simplicity of TVA (Tennessee Valley Authority) bridges contrasts with considerable detail and ornamentation on the standard types of most state highway departments. Photograph illustrates unspoiled rural character of surroundings which was attained by purchase of broad strips of land either side of road and, further contracts with abutting land owners giving them right to cultivate TVA-owned strip in exchange for prohibiting signboards on their own property