Lafayette-Spring Street Bridge, Lafayette & Spring Street, spanning Oswegatchie River, Ogdensburg, St. Lawrence County, NY

Significance: An example of early twentieth-century reinforced concrete construction using the "Melan-von Emperger" systems of steel reinforcement. The western two spans were constructed as part of a grade crossing elimination program active throughout New York State during the years between 1910 and 1920. The Lafayette Street viaduct, all five spans, was designed by William Mueser of the Concrete-Steel Engineering Co. Information about Mueser, the company, and another historically significant concrete arch bridge may be found in HAER No. NY-173, Court Street Bridge, Watertown, New York.
Survey number: HAER NY-174
Building/structure dates: 1919 Initial Construction