About 3:15 a.m. on June 15, 1982, Amtrak Train No. 5 (the San Francisco Zephyr), with 315 persons onboard, derailed near Emerson, Iowa, while traveling about 74 miles per hour on the Burlington Northern Railroad. The train was traveling westbound on the No. 2 main track when it encountered floodwater over the top of washed-out rails. The accident resulted in 1 passenger fatality and 27 injuries. Damage was estimated to be about $3,381,940.