At the Fresno Trench beneath State Route 180 (SR 180), the excavation and shotcrete operation is ongoing. On one side of the trench, a crew sprays shotcrete over rebar to form the trench wall, while on the other side, another worker sprays the new surface with a curing compound to help the concrete set properly. Shotcrete is a type of concrete that is typically sprayed over rebar or metal mesh to keep dirt or material in place and is often used in constructing backyard pools. Crews have approximately 30 more feet to excavate before they reach the bottom of the trench where a concrete box that will carry the trains will be constructed. When complete, the trench will cross under SR 180, a rail spur and the Dry Creek Canal.