The United States Army Corps of Engineers anticipates a requirement for railroad curve repairs at the Military Ocean Terminal Concord (MOTCO) in Concord, CA. The work involves the removal and replacement of approximately 7,500 linear feet of rail, including ties and hardware, at multiple curves on the tidal side of the installation. The base bid includes the replacement of curves 6, 11, and 12 and the demolition of curves 4 and 5, with an optional replacement of curve 19. All construction must adhere to UFC 4-860-01FA and AREMA Manual standards.