Pinnacle Engineering was retained by a rail client to analyze approximately 29 miles of mainline track adjacent to a major river system which had experienced a significant number of washouts during extreme flooding. A majority of the rail line was in a remote area, and survey and flood data were not readily available. Analysis was required as quickly as possible so that new, properly sized culverts could be installed as rail roadbeds were repaired and similar damage in future flooding events could be avoided.
Pinnacle engineers provided hydraulic analysis, surveying, GIS mapping, regulatory representation, environmental analyses, and environmental permitting. The hydraulic analysis report covered six bridges and approximately 25 culverts, The Pinnacle team adapted LIDAR (aerial topography) data from the County to create a track profile map of the 29-mile stretch which included survey data, elevations of culverts and bridges, and an analysis of water levels.
Upon completion of a revised flood study, additional work was scheduled, enabling Pinnacle’s client to adjust bridge heights to avoid future damage from 100-year event floods.