Rehabilitation of the historic Union Depot railroad terminal in St. Paul, Minnesota, hinged on whether the ninety-year-old structure, which exhibited widespread and locally severe deterioration, had sufficient remaining capacity or could be effectively and practically repaired to support the anticipated loads of the rehabilitated facility. The unique approach used to assess the concrete superstructure and timber pile foundations of this very large facility, which relied on comprehensive field inspections followed by targeted testing and structural analysis, allowed most of the original structure to be salvaged and effectively repaired for the desired service life of fifty years.
Used with permission from the International Concrete Repair Institute.
READ MORE >Arne P. Johnson, Principal
READ MORE >Kevin A. Michols, Principal, Unit Manager, and Director of Janney Technical Center
Materials, detailing, and historic construction techniques for designing appropriate repairs READ MORE >Evaluation and Repair of 100-Year-Old Concrete Structures
An overview of late 19th and early 20th century concrete reinforcement systems READ MORE >Historic Concrete Reinforcing Bars and Bar Systems