During the heavy rains that occurred throughout the state of California during the winter storms in early 2017, RoboHawk was called in to provide aerial support with photo documentation to submit to state and federal agencies for emergency permitting.  The repairs had to be done immediately due to severe scouring to 3 separate trestle crossings over a large creek that raged during these events.  RoboHawk was able to get in and get the job done in adverse conditions and provided immediate turnaround photos, video footage, and identical area maps for before and after comparison and documentation with ability to quickly and accurately calculate square footage of disturbance areas and impact footprints.