In 1958, the Harris County Board of Park Commissioners hired two architectural firms, Lloyd and Morgan and Wilson, Morris, Crain & Anderson to develop plans for a stadium using the $20 million revenue bond approved by voters that July. The "Associated Architects," as the two firms referred to themselves, developed the original blueprints and oversaw construction of the Astrodome, and some members continued to work on the project into the 1970's. The Harris County Public Infrastructure Department Records unit has digitized the blueprints and makes them available under the Texas Public Records Act. A copy of the blueprints, in reduced format, is also available at the Dolph Briscoe Center for American History at The University of Texas at Austin, where they are part of the Robert J. Minchew Houston Astrodome Architectural and Engineering Collection. Individual sheets of original blueprints are also available from other archives.