Roosevelt Bridge, which was built in 1933, is a 484 ft long concrete structure on Kamehameha Highway that connects Mililani to Waipio on the island of Oahu.
KSF, Inc. provided plans and performed analyses to widen, rehabilitate, and seismic retrofit the bridge in order to meet current design standards for load capacity and ductility demands. The deck was widened to provide an additional six feet of horizontal clearance between the faces of the barrier rails to address possible future roadway needs. We also conducted response spectrum and non-linear push over analyses to address seismic concerns. These higher order analyses allowed for a greater refinement of the structure assessment which resulted in significant construction cost savings.