Amtrak Pacific Surfliner #572 crosses the San Luis Rey River Bridge at the river's mouth (where it empties into the Pacific Ocean) in Oceanside, California. F59PHI 451 is slowing its six car train, heading from Los Angeles to San Diego, as the Oceanside station is just around the curve at the end of this bridge.
Stretching from San Luis Obispo to San Diego, the Surf Line has become Amtrak's second busiest route. See the Pacific Surfliner and San Diegan in action along with trains from predecessors Santa Fe and Southern Pacific.