At the Fresno Trench beneath State Route 180 (SR 180), crews have approximately 20 feet more to excavate before they reach the bottom of the trench where a concrete box will be constructed that will carry the trains. Further north, an intrusion protection barrier is largely complete that will make sure high-speed and freight trains stay separated in the event of an accident. When complete, the trench will cross under SR 180, a rail spur and the Dry Creek Canal.