Toltz King Day

Toltz, King & Day, now known as TKDA, is an architectural and engineering firm founded in 1910 by Maximilian Toltz and Wesley E. King. The firm was renamed after Beaver Wade Day joined in 1919. It designed several notable structures, including the Como Park Conservatory (1915), Hamm Building (1920), Stearns County Courthouse (1921), Saint Paul Union Depot (structural engineering, 1923), and Robert Street Bridge (1926). The Robert Street Bridge, a rainbow arch design, addressed challenges such as connecting Kellogg Boulevard at street level while providing clearance for riverboats and other structures. TKDA rebuilt the bridge in 1989.

In 1956, the firm was renamed Toltz, King, Duvall, Anderson, and Associates to recognize key contributors like Arndt Duvall and Gerald Anderson. Arndt Duvall became president after Wesley King’s death in 1959. Many of TKDA’s works are listed on the U.S. National Register of Historic Places, including courthouses in Aitkin County (1929), Barnes County (1925), and Burke County (1928). Other projects include the Krank Manufacturing Company building (1926), Prince of Wales Hotel in Canada (1927), and the Wabasha Street Bridge (1996).

The firm also contributed to modern infrastructure, such as designing 15 stations for the Blue Line light rail project (2004) and working on the I-35W Saint Anthony Falls Bridge (2008). TKDA’s papers are archived at the University of Minnesota.