Except as provided in subparagraph (B), the term “eligible operations and maintenance” means all Federal operations, maintenance, repair, and rehabilitation, including (i) maintenance dredging reasonably necessary to maintain the width and nominal depth of any harbor or inland harbor; (ii) the construction of dredged material disposal facilities that are necessary for the operation and maintenance of any harbor or inland harbor; (iii) dredging and disposing of contaminated sediments that are in or that affect the maintenance of Federal navigation channels; (iv) mitigating for impacts resulting from Federal navigation operation and maintenance activities; and (v) operating and maintaining dredged material disposal facilities.

As applied to the Saint Lawrence Seaway, the term “eligible operations and maintenance” means all operations, maintenance, repair, and rehabilitation, including maintenance dredging reasonably necessary to keep such Seaway or navigation improvements operated or maintained by the Great Lakes St. Lawrence Seaway Development Corporation in operation and reasonable state of repair.

The term “eligible operations and maintenance” does not include providing any lands, easements, or rights-of-way, or performing relocations required for project operations and maintenance.

an inland harbor;

the Saint Lawrence Seaway;

local access or berthing channels;

channels or harbors constructed or maintained by nonpublic interests; and

any portion of the Columbia River other than the channels on the downstream side of Bonneville lock and dam.

projects on the Great Lakes;

projects that are subject to tidal influence;

projects with authorized depths of greater than 20 feet;

local access or berthing channels; and

projects constructed or maintained by nonpublic interests.