William Mueser

of Moers, North Rhine-Westphalia, Germany
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The Court Street bridge was one of 2,800 reinforced concrete arch bridges designed or supervised by William Mueser. Mueser was born in Germany in 1872 and emigrated to the United States in 1893. Between 1895 and 1900 he was associated with the Melan Arch Construction Company, initially as a designer and eventually as an owner of the company. He is credited with designing and supervising the construction of the first reinforced concrete arch bridge built in the United States, in Rock Rapids, Iowa in 1894. Mueser also designed the first reinforced concrete arch bridges built in New York, New Jersey, Pennsylvania, and the District of Columbia. In 1900 he formed the Concrete-Steel Engineering Company in partnership with Edwin Thacher. Thacher, like Mueser, specialized in reinforced concrete engineering and held a number of concrete arch and reinforcing system patents. After 1912 when Thacher retired from the firm and from active practice, Mueser became the sole owner of the Concrete-Steel Engineering Company. One of his most notable bridges is the Galveston Causeway, Texas. Mueser continued to manage the firm until 1933 when he dissolved the company and entered the employment of the Federal Civil Works Administration as a Regional Director. Before his death on August 4, 1950, Meuser obtained 50 patents pertaining to reinforced concrete construction including the "diamond" reinforcement bar still in use today. He was a member of both the American Society of Civil Engineers and the American Society of Materials Testing.


Broadway Bridge (Oswego County, New York)
Design, 1913
Lost Open-spandrel arch bridge over Oswego River & Oswego Canal on Broadway
Replaced by a new bridge

Grand Avenue Viaduct (Milwaukee County, Wisconsin)
Designer, 1911
Lost Open-spandrel arch bridge over North 44th Street, Canadian National Railway, Menomonee River, North 39th Street, Miller Brewing Co on Grand Avenue/Wisconsin Avenue
Replaced by a new bridge

Lafayette Spring Street Bridge (St. Lawrence County, New York)
Supervising Engineer, 1916
Deck arch bridge over Oswegatchie River on Lafayette Spring Street in Ogdensburg
Open to traffic

Melan Bridge (Lyon County, Iowa)
Supervising Engineer, 1893
Reinforced concrete arch bridge within Emma Sater Park near Rock Rapids, just off IA 9
Open to pedestrians only

Old Galveston Causeway (Galveston County, Texas)
Engineer, 1912
Modern lift bridge with concrete arch approach spans over Galveston Bay on BNSF Railway (and former highway)
Open to railroad traffic only

US11 Black River Bridge (Jefferson County, New York)
Supervising Engineer, 1921
Lost Open-spandrel arch bridge over Black River on US 11
Replaced by a new bridge