; and (B) available for the same purposes, and subject to the same conditions and limitations, as amounts in the fund or account to which the amounts are credited under subparagraph (A). (g) Liability The City shall hold the United States harmless from any liability with respect to activities carried out on the Federal land on or after the date of conveyance of the Federal land. 1033. Maintenance of high-risk flood control projects In any case in which the Secretary has assumed, as of the date of enactment of this Act, responsibility for the maintenance of a project classified as class III or higher urgency under the Dam Safety Action Classification of the Corps of Engineers, the Secretary shall continue to be responsible for the maintenance of that project until the earlier of— (1) the date on which the project is modified to reduce that risk and the Secretary determines that the project is determined to be adequately safe; and (2) the date that is 15 years after the date of enactment of this Act. 1034. Projects to accommodate irregular dredging (a) In general Not later than 2 years after the date of enactment of this Act, pursuant to the continuing authority program under section 107 of the River and Harbor Act of 1960 ( 33 U.S.C. 577 ), the Secretary shall, to the maximum extent practicable, carry out not less than 1 project to improve a harbor to accommodate an eligible event described in subsection (b). (b) Eligible event described An eligible event referred to in subsection (a) is a special event that— (1) is hosted by a government entity; (2) is open to the public; and (3) would have significant educational and regional economic development benefits. (c) Justification The Secretary shall not require national economic development benefits to exceed costs for any project carried out under this section if— (1) dredging or other harbor improvements are necessary to accommodate 1 or more eligible events