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1. Aerial Bridge: Aerial Bridge Over Duluth-Superior Ship Canal, Duluth, Minnesota
- Date Created:
- 1915?
- Description:
- The suspended car transfer was replaced in 1929 with the Aerial Lift Bridge span. The building at the left is the wholesale grocer Gowan Lenning Twohy.
- Contributing Institution:
- University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
- Type:
- Still Image
- Format:
- Postcards
2. Aerial Bridge: Entrance To Duluth-Superior Harbor, Duluth, Minnesota
- Date Created:
- 1906?
- Description:
- The post card caption says The Aerial Bridge, Span 393 feet 9 inches, 135 feet high from water line. Cost $100,000. This post card illustration is of a view from the Duluth harbor with the U.S. Army Corps of Engineers Building at the left and the South Breakwater Inner Light Tower at the right. Houses on Minnesota Point are at the far right. Engineer C.A.P. Turner, of the Gillette-Herzog Manufacturing Company of Minneapolis, designed the Ferry Bridge with Suspended Car Transfer in February 1901, meeting federal specifications. Bids were opened March 25, 1901, but only one was received. The Duluth Canal Bridge Company was awarded the contract but abandoned the work. In February, 1904, the Modern Steel Structural Company of Waukesha, Wisconsin was issued a contract. Work began July 20, 1904. The aerial bridge transporter or gondola or transfer car roadway was 17 feet by 50 feet with sidewalks seven feet by 50 feet; the cabins were 30 feet long.
- Contributing Institution:
- University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
- Type:
- Still Image
- Format:
- Postcards
3. Aerial Bridge Duluth, Minnesota
- Date Created:
- 1906?
- Description:
- The post card caption says The Aerial Bridge, Span 393 feet 9 inches, 135 feet high from water line. Cost $100,000. This post card illustration is of a view from the waterfront. At the right is the South Breakwater Inner Light Tower. Houses on Minnesota Point are at the far right. Engineer C.A.P. Turner, of the Gillette-Herzog Manufacturing Company of Minneapolis, designed the Ferry Bridge with Suspended Car Transfer in February 1901, meeting federal specifications. Bids were opened March 25, 1901, but only one was received. The Duluth Canal Bridge Company was awarded the contract but abandoned the work. In February, 1904, the Modern Steel Structural Company of Waukesha, Wisconsin was issued a contract. Work began July 20, 1904.
- Contributing Institution:
- University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
- Type:
- Still Image
- Format:
- Postcards
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