waterway or a bypass. (2) Emergency conditions An emergency condition includes not less than 1 of the following: (A) Unsafe conditions on an inland navigable waterway or a bypass that prevents the operation of commercial vessels as a result of a major change in water level or flows. (B) An obstruction in an inland navigable waterway or a bypass, including silt, sediment, rock formation, or a shallow channel. (C) An impaired or inoperable Federal lock and dam. (c) Emergency mitigation project (1) In general Subject to paragraph (2) and the availability of appropriations and in accordance with all applicable Federal requirements, the Secretary may carry out an emergency mitigation project on an inland navigable waterway or a bypass for which the Secretary has determined that an emergency condition exists, or is anticipated to exist, under subsection (b)(1) to remedy or prevent that emergency condition. (2) Deadline An emergency mitigation project under paragraph (1) shall— (A) be initiated by not later than 60 days after the date on which the Secretary makes a determination under subsection (b)(1) with respect to the inland navigable waterway or bypass on which the project will be carried out