North of the City of Wasco in Kern County, the Poso Creek Viaduct will take trains over Poso Creek. Upon completion, the Poso Creek Viaduct will be nearly 240-feet long and 56-feet wide.
The Poso Creek Viaduct is located south of Blankenship Avenue and west of State Route 43 in Kern County.
In July, crews performed the largest single concrete placement to happen date in Construction Package 4 at Poso Creek. More than 100 trucks placed more than 1,000 cubic-yards of concrete to form the deck of the superstructure.