Duluth Works
The Duluth Works was an industrial steel and cement manufacturing complex located in Duluth, Minnesota, United States, in operation from 1916 to 1981. The complex was operated by the U.S. Steel. Officially, the plant's purpose was to supply the growing Midwest with steel finished products. Unofficially, they were built as part of a "gentleman's agreement" between U.S. Steel and the State of Minnesota to not impose hefty iron ore taxes on U.S. Steel in exchange for a fully integrated steel plant within Minnesota, whose mines furnished 80% of the ore to U.S. Steel. The combined works of the steel and cement plant were the largest employers in Duluth and the fourth largest industrial complex in Minnesota.
Minnesota Steel Company
In 1907, U.S. Steel agreed to build an integrated steel plant in the vicinity of Duluth, which was from the largest iron ore source in the United States, the Iron Range. U.S. Steel theorized that by using the Great Lakes, it could haul limestone and coal to Duluth from the lower lakes and return with a load of iron ore from Minnesota. It was thought that by using this process, Duluth would become a great center of manufacturing in the United States.In June 1907, U.S. Steel incorporated the Minnesota Steel Company, a wholly owned subsidiary, to manage and care for all plans of the future developments of the steel plant. This included building houses for its new employees. The houses were built adjacent U.S. Steel's new plant and the community eventually became known as Morgan Park, named for J.P. Morgan, chairman of the board of U.S. Steel. This innovative planned company town was only open to employees of the Minnesota Steel Company and the companies that followed.
Although a subsidiary of U.S. Steel, which at the time was headquartered in New York City, the Minnesota Steel Company's general offices were located in Morgan Park in a building adjacent to the gate of the plant. The officers of the Minnesota Steel Company all held positions within the U.S. Steel Corporation, much as did Minnesota Steel's sister companies of Carnegie-Illinois Steel and the Tennessee Coal, Iron and Railroad Company.
Steel for the west
The Duluth Works primary purpose was to make steel for the expanding Midwest prairies and far west plains. It was originally intended to build rails for the expanding railroads, but by the time the mill was completed in 1915, the railroads had reached their peak of construction and it was felt that those needs could best be handled from the Chicago area. After the rail mill was completed, it was converted into billet finishing facilities. In 1922, after going over what products would best serve the plant's existence, U.S. Steel decided to expand its Morgan Park operation and build a new wire, rod, nail, and fence post fabrication facility. These products, it was felt, best suited Duluth's capabilities for integrated steel production. After the expansion of these facilities, the Duluth Works only consumed 20% of its own steel production for its finished products. The rest of its semi-finished steel was shipped to other facilities for finishing. Its proposed 12-state market area and areas of Canada were sparsely populated and able to be supplied with products from other mills. Some of Minnesota Steel's products were only produced by U.S. Steel at the Duluth Works facility. These included steel wool, certain nails, fences and fence posts, and a new product introduced in 1954, welded wire fabric, primarily for use with concrete to produce more sturdy road construction. Some of this material was used to in construction of missile silos for the Air Force's Strategic Air Command.Facilities
The Duluth Works steel facilities were, upon construction in 1915, briefly among the most modern steelworks in the world. Although massive in scale to many people, the plant was among more modest facilities within the U.S. Steel empire. At a steelmaking capacity of 973,000 tons per year, it was nowhere near the massive steel plants of Homestead or Gary. U.S. Steel bought more land when it built the facilities with the ultimately futile belief that more subsidiaries and other steel-related industries would move to the unoccupied site to consume the plant's products. The only other major tenant on the site was the cement plant of the Universal Atlas Cement Company, a subsidiary of U.S. Steel. A smaller company, Priola and Johnson, took open hearth and blast furnace slag and granulated it for other uses on the plant property.The Duluth Works featured a ten-furnace open hearth steel production facility, two blast furnaces, 110 oven byproduct coke plant, a benzole and toluol plant, a byproducts refinery, coal and coke conveyors and crushing and sizing towers, a pig iron casting facility, a blowing house powerhouse, a Heine boiler house, fresh water pumping inlet station, a hot gas-soaking pit and stripping building, a massive rolling facility consisting of a blooming mill, 28" rolling mill, billet finishing department, hot gas re-heating beds, bar finishing department, fence post fabrication unit, merchant mill, wire, nail, fence and welded fabric mesh building, machine repair shop, three massive materials yard crane bridges and loading/unloading docks, locomotive engine repair and servicing building, its own railyard, a lab, an ore thawhouse, a coal thawhouse and various warehouses and other structures. When initially completed in 1916, the steel plant site had 48 buildings.
Operations
The Duluth Works was an integrated steel plant which took several raw materials and combined them in furnaces to make a product. Of those raw materials, iron ore, which was mined away from the Duluth Works on the Iron Range, was in plentiful and nearby supply, but coal, limestone and other materials were also needed to make steel. These materials had to travel vast distances to get to Duluth, which made Duluth "undesirable" as a manufacturing metropolis in the eyes of many industry leaders. In the U.S. Steel empire, these materials and their transportation were all handled within branches of the U.S. Steel subsidiaries, all of them mentioned below, having had headquarters in Duluth. Iron ore was mined by U.S. Steel's Oliver Mining Company and hauled by rail on the Duluth, Missabe and Iron Range Railway directly to the Duluth Works. Coal, which was mined on the East coast, was hauled by rail to Great Lakes ports and to Duluth by lake carriers of U.S. Steel's Pittsburgh Steamship Company. The limestone from Michigan, needed to purify iron ore in blast furnaces and used for cement making, was hauled by lake carrier to Duluth by the Bradley Transportation Company.Scrap material and other bulk freight was moved at the Duluth Works by several rail carriers other than the Duluth, Missabe and Iron Range Railway. The most notable were the Soo Line, the Northern Pacific Railroad, the Duluth, Winnipeg and Pacific Railway, the Great Northern Railway, the Milwaukee Road and the Canadian National Railway. Minnesota Steel, American Steel and Wire, DM&IR and U.S. Steel all had locomotives within the plant for moving its material, and several were serviced and repaired in-house in locomotive machine and repair shops.
The steel and cement plants of the Duluth Works were both serviced by rail via a long rail trunk that intersected several other major rail lines in the area. The rail yard was known as the Steelton Yard and exists today in the same location between the former steel mill materials yard and the Duluth neighborhoods of Gary and New Duluth. This yard, once owned and operated by the DM&IR, is now operated by the Canadian National Railway.
Finished and semi-finished products from the Duluth steel works were taken by rail through the Steelton Yard over the Oliver Bridge through the south end of Superior, Wisconsin and brought to loading docks at Allouez Bay just south of the Superior entry for loading by ship to other markets or further finishing.