Hei hei! NAHA is currently undating our archival catalog. Some finding aids are currently unavailable. Please contact the NAHA archivist with any questions.
Reports of a Norwegian-born engineer to the New York City Tunnel Authority, and to the Washington Toll Bridge Authority, and articles on engineering problems. The file includes two obituaries.
Includes publication from the World Engineering Congress Tokio (1929) "Ventilation of Vehicular Tunnels" by Ole Singstad, "Bau von Unterwassertunneln in den Vereinigten Staaten von Amerika" (1933), "Vehicular and Pedestrian Tunnels at Antwerp" (1934), "Industrial Operations in Compressed air," (1936), "Planning and Construction of the Queens Midtown Tunnel" (1938), "Engineering Problems Related to the Health of Workers in Compressed Air," (1939). Report (1): To New York City Tunnel Authority on Narrow Tunnel between Brooklyn and Richmond. (2): To Washington Toll Bridge Authority Cascade Mountains Low Level Tunnel Survey. (3): Narrows tunnel (Chap. 5) "Saga in Steel and Concrete." Final report of New York City Tunnel authority on Proposed narrows vehicular tunnel between the boroughs of Brooklyn and Richmond. (1945)