The U.S. Government plans to award a Firm-Fixed Price construction contract for repairing approximately 2,500 linear feet of rail curves at the Military Ocean Terminal in Concord, CA. The project includes replacing ties, rails, turnouts, and crossings, with base work on curves 9 and 10, plus options for UXO clearance, mission stand-down, and wetland mitigation. The estimated construction budget is between $6,000,000 and $9,000,000. All contractor personnel must be U.S. citizens to obtain required security clearances. The solicitation is a total small business set-aside, with performance expected at the MOTCO location in Concord, California.