BNSF regularly and rigorously inspects our network and equipment to ensure we continue to run a safe, reliable railroad. Our efforts include routine visual inspections by more than 650 trained and experienced track inspectors who patrol miles of track. BNSF also uses special rail cars equipped with ultrasonic detection and other technologies to look for flaws in the rail and to test track geometry. Key routes are inspected twice as frequently as required by the Federal Railroad Administration. Our busiest mainline routes are often inspected even more frequently, and our bridge inspectors conducted more than 61,000 bridge inspections in 2016.