St Paul Architects 444 Cedar St # 1500 Welcome to TKDA, Engineers, Architects and Planners specializing in Aviation, Rail, Surface Transportation, Municipal Services and Facilities engineering. TKDA has 5 offices and works on engineering and architecture projects across the US. St Paul MN Architects TOLTZ King Duvall Anderson www.tkda.com tkda engineering firm tkda architecture services minnesota bridge engineers tkda corporate engineering services architecture services engineering companies minnesota architecture firm mn chicago engineers california architects kansas engine tkda engineering firm tkda architecture services minnesota bridge engineers tkda corporate engineering services architecture services engineering companies minnesota architecture firm mn chicago engineers california architects kansas engine Business Reviews TOLTZ King Duvall Anderson Testimonials