UPRR Sunset Route – Iris to Acolita

Construction has begun on the 11.5-mile stretch of UPRR’s Sunset Route from Iris to Acolita in the Imperial Sand Dunes of southern California. Crews will build a second mainline track with 9 bridges, 39 drainage structures with headwalls, 59 jack and bore pipes, and approximately 92,000 cubic yards of embankment.