Zephyr Rail provides engineering services to support a variety of rail clients. * Track Design * Civil Engineering * Grade Crossing Design/PUC Permitting * Quiet Zones * 3rd Party Reviews * Rail/Railroad Bridge Inspection * Construction Management We are one of a few specialized firms utilizing a fleet of UAVs to support both our in-house and client's engineering needs for applications such as mapping, inspection, construction monitoring, and aerial photography with extensive and specialized experience in rail corridors.