Just outside of downtown Fresno, crews have completed the walls, floor and lid of the Fresno Trench and are now placing concrete for the intrusion protection barrier walls that will separate the high-speed rail corridor and Union Pacific Railroad. Meanwhile below State Route 180 (SR 180), backfilling and reconstruction of eastbound lanes are taking place as crews prepare for the next stage of work that will reconstruct the number 1 and 2 lanes of SR 180 going east and westbound.