; (B) has a load capacity that is significantly below truckloads using the bridge and that requires replacement; or (C) has a waterway opening causing frequent flooding of the bridge deck and approaches resulting in significant traffic interruptions. (b) Establishment Not later than 30 days after the date of enactment of this Act, the Secretary shall establish a program to assist States to rehabilitate or replace eligible bridges. (c) Apportionment of funds (1) In general Amounts made available to carry out the program established under subsection (b) for a fiscal year shall be apportioned to each State according to the ratio that— (A) the total cost to rehabilitate or replace eligible bridges in that State; bears to (B) the total cost to rehabilitate or replace eligible bridges in all States. (2) Calculation of total cost (A) In general For purposes of the calculation under paragraph (1), the Secretary shall multiply the deck area of eligible bridges by the unit price on a State-by-State basis, as determined by the Secretary, to determine the total cost to rehabilitate or replace eligible bridges in each State. (B) Data used in making determinations The Secretary shall make determinations under this subsection based on the latest available data, which shall be updated not less than annually. (C) Use of existing inventories To the extent practicable, the Secretary shall make determinations under this subsection using inventories prepared under section 144 of title 23, United States Code. (d) Use of funds Funds apportioned to a State under the program established under subsection (b) shall— (1) be used by that State for the rehabilitation and replacement of eligible bridges; (2) except as otherwise specified in this section, be administered as if apportioned under chapter 1 of title 23, United States Code, except that the funds shall not be transferable; (3) be subject to the requirements described in section 1101(b) of the FAST Act ( 23 U.S.C. 101 note