At the Fresno Trench beneath State Route 180 (SR 180), construction begins on multiple elements of the trench. The excavation and shotcrete operation beneath SR180 is ongoing. Crews have excavated approximately 40 feet below the top of the freeway. To the north of SR 180, craftworkers are busy constructing the intrusion barrier walls. The barrier wall will separate the high-speed rail alignment from the existing freight rail that parallels the project. The wall will be 10 feet tall, three feet thick and extend nearly 1,200 feet in this area of the project and nearly 20,000 feet project wide. When complete, the trench will cross under SR 180, a rail spur and the Dry Creek Canal.