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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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2010 photograph
INTERSTATE PIPE & SUPPLY COMPANY. Ralph Weis began the company in 1960 at Jones & Terminal Street. The company supplied industrial piping, valves, fittings, tools and allied equipment. (1) The company was moved in 1968 to 200 Railroad Avenue.
Photo courtesy: Bob Reding
Interstate distributed pipe, valves, fittings and industrial supplies to mechanical contractors, industries and utilities of Dubuque and the surrounding area. In 1976 Interstate was the largest distributor of grinding wheels and overhead handling equipment in the area.

The 1964 and 1966 Dubuque City Directory listed the corner of Jones St. and Terminal.

The 1972 through 1993 Dubuque City Directory listed 200 Railroad Avenue.



1. "Pipe and Supply Firm Founded," Telegraph-Herald, January 10, 1960, p. 14