The Warren Truss Bridge, which carries Haskell Road over Stranger Creek in rural Atchison County, was originally constructed in 1925. On October 12, 2004, it was added to the National Register of Historical Places. It exemplifies a typical, economical bridge solution applied to a short span. In 2010, the deteriorating condition of the deck necessitated repairs.
BG Consultants was hired by Atchison County to design and implement rehabilitation for this historic structure. Services began with a structural analysis, which proved that the load capacity of the bridge could be increased with additional stringers incorporated. A six-inch lightweight concrete deck was utilized to provide lower dead load, preserve the historical integrity of the bridge, and provide more a durable bridge deck. While the addition of the stringers and replacement of the deck with normal weight concrete would have increased the load capacity to 11-15-18 tons, the use of lightweight concrete further increased the live load capacity to 13-18-21 tons.
To help fund the project, BG assisted Atchison County in securing KDOT Transportation Enhancement funding. BG’s rehabilitation of the Warren Truss Bridge provided for a safer bridge that can carry increased traffic volume and weight for years to come, while preserving the historically significant structure.