Toltz, King, and Day

Toltz, King & Day was an architectural and engineering firm in Minnesota, which is now TKDA.

The firm was founded in 1910 by Maximilian Toltz (1857–1932), formerly the chief engineer for the Great Northern Railway under James J. Hill, and Wesley E. King (1879–1959), a civil and structural engineer. In 1913, Emmanuel Louis Masqueray commissioned the firm to provide mechanical and structural engineering services for the Cathedral of Saint Paul. Toltz Engineering Company also participated in the design of the Como Park Conservatory in 1915. A staff architect, Roy Childs Jones, completed the Hamm Building in 1920.

In 1919, Beaver Wade Day (1884–1931) joined the firm, and it was renamed to Toltz, King and Day. The firm designed the Stearns County Courthouse and Jail in St. Cloud, Minnesota in 1920 and provided structural engineering services for the Saint Paul Union Depot in 1923. In 1926, they completed the design of the Robert Street Bridge spanning the Mississippi River in St. Paul. The bridge, a rainbow arch design, had several challenges that resulted in its unusual form. The bridge had to reach Kellogg Boulevard at street level at the top of the bluff, while providing enough clearance underneath for the raised platform at the Saint Paul Union Depot, the Chicago Great Western lift bridge, and the passage of riverboats on the river. The bridge was rebuilt in 1989 by the same firm, now known as TKDA.

In 1956, the firm changed its name to Toltz, King, Duvall, Anderson, and Associates, to acknowledge civil engineer Arndt Duvall, architect Gerald Anderson, and other architects and engineers. Arndt Duvall became president of the firm in 1959, after King's death.

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