The Secretary shall investigate and study the feasibility of utilizing the capabilities of the United States Army Corps of Engineers to conserve fish and wildlife (including their habitats) where such fish and wildlife are indigenous to the United States, its possessions, or its territories. The scope of such study shall include the use of engineering or construction capabilities to create alternative habitats, or to improve, enlarge, develop, or otherwise beneficially modify existing habitats of such fish and wildlife. The study shall be conducted in consultation with the Director of the Fish and Wildlife Service of the Department of the Interior, the Assistant Administrator for Fisheries of the National Oceanic and Atmospheric Administration, and the Administrator of the Environmental Protection Agency, and shall be transmitted within the 30-month period beginning on November 17, 1986, by the Secretary to Congress, together with the findings, conclusions, and recommendations of the Chief of Engineers. The Secretary, in consultation with the Federal officers referred to in the preceding sentence, shall undertake a continuing review of the matters covered in the study and shall transmit to Congress, on a biennial basis, any revisions to the study that may be required as a result of the review, together with the findings, conclusions, and recommendations of the Chief of Engineers.