Set of 37 sheets of architectural drawings accepted for the City of Duluth by Samuel F. Snively, Mayor, and John Wilson, City Engineer, Plans Accompanying Specifications of January 1929. Technical drawings with varying degrees of legibility. There is only one elevation in the set; Sheet 1. The original bridge was the Aerial Bridge constructed in 1904-1905. The bridge was modified in 1929 with a lift span and subsequently called the Aerial Lift Bridge. These plans are highly technical and were designed for the use of engineers and specialty contractors. Each drawing indicates that certain features of the structure have been revised. This set appears to represent the final revision. The Lift Bridge was designed by Harrington, Howard and Ash Consulting Engineers, Kansas City and New York. Patented in the United States from 1909-1925.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
Design drawing, including plan, elevation and section of the lightweight streetcar built by Twin City Rapid Transit for the city of Chattanooga, Tennessee.
Design drawings, including plans and elevations comparing the lightweight streetcars Twin City Rapid Transit Company built for the cities of Nashville, Chattanooga and Evansville.
Design drawing, including plan and elevation of an older Nashville streetcar, probably used to supply operating dimensions for the group of lightweight streetcars to be built for Nashville. The Twin City Rapid Transit Company built streetcars for other cities including Nashville, Tennessee.
Design drawing, incluidng plan, section and elevation of Twin City Rapid Transit gasoline boat, intended to replace the steam powered Lake Minnetonka express boats. This boat was never built.