Columbia Lock and Dam, Louisiana

Not later than 180 days after the date of enactment of this Act, the Secretary shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Environment and Public Works of the Senate a report regarding the Columbia Lock and Dam, Louisiana, authorized by the first section of the Act of June 13, 1902 (chapter 1079, 32 Stat. 357), that includes— (1) a description of the nature and extent of the structural concerns that resulted in the declaration by the Secretary in August, 2024, of a non-breach emergency at the lock and dam; (2) a summary of actions taken by the Corps of Engineers to address such concerns, including interim operational or emergency measures; (3) recommended permanent remedial actions necessary to ensure continued navigation functionality and structural integrity; (4) an evaluation of whether such recommended permanent remedial actions may be implemented as discrete, segmented projects or phases, including an assessment of— (A) the technical feasibility of such segmentation; (B) potential cost efficiencies or risk reduction associated with phased implementation; and (C) the extent to which segmentation could accelerate completion of critical repairs; and (5) an estimated schedule and cost range for implementation of such recommended permanent remedial actions, including any segmented or phased approach identified based on the evaluation under paragraph (4).