; (II) address a freight mobility issue identified in a State freight plan; or (III) are identified in a State freight plan. (B) Inclusion in State freight plan A project described in subparagraph (A)(ii)(III) may include a project listed in the freight investment plan required under section 70202(b)(9) of title 49. (C) Unutilized amounts If, in fiscal year 2025, the Secretary determines that grants under this paragraph will not allow for the amount reserved under subparagraph (A) to be fully utilized, the Secretary shall use the unutilized amounts to make other grants under this section during that fiscal year. (4) Critical urban State projects (A) Requirement Not less than $500,000,000 of the amounts made available for grants under this section for fiscal years 2021 through 2025, in the aggregate, shall be used to make grants to eligible projects that are located in a State with a population density of not less than 400 persons per square mile of land area, based on the 2010 census. (B) Inclusion in State freight plan A project described in subparagraph (A) may include a project listed in the freight investment plan required under section 70202(b)(9) of title 49. (C) Unutilized amounts If, in fiscal year 2025, the Secretary determines that grants under this paragraph will not allow for the amount reserved under subparagraph (A) to be fully utilized, the Secretary shall use the unutilized amounts to make other grants under this section during that fiscal year. ; (4) in subsection (e)— (A) in paragraph (1), by striking 10 percent and inserting not less than 15 percent ; (B) in paragraph (3)— (i) in subparagraph (A), by striking and at the end; (ii) in subparagraph (B), by striking the period at the end and inserting ; and ; and (iii) by adding at the end the following: (C) the effect of the proposed project on safety on freight corridors with significant hazards, such as high winds, heavy snowfall, flooding, rockslides, mudslides, wildfire, wildlife crossing onto the roadway, or steep grades.