Barton Road Bridge Replacement – Placer County, CA

The project contractor had planned to install an in-situ concrete retaining wall to shore a portion of Barton Road during replacement of the bridge over Miners Ravine. The contractor encountered loose flowing sand and high groundwater conditions that were not revealed during the exploratory drilling performed by others. Traditional soil anchors, cantilever soldier beam and temporary gravity walls were not possible. H&K elected to use an innovative design of dead man anchors through the existing roadway to support the shoring. Following additional subsurface investigation, H&K was also able to reduce the bridge abutment depths, allowing significant cost savings in design and construction.