((a)) ** In general** The Secretary shall establish a program to carry out studies and projects to control, retain, and reuse stormwater associated with flood control efforts, in partnership with non-Federal interests.

((b)) ** Requirements**

((1)) ** Prioritization** In carrying out this section, the Secretary shall prioritize studies and projects that improve urban flood control efforts, including through the management of stormwater that flows at a rate of less than 800 cubic feet per second for the 10-percent flood.

((2)) ** Use of natural and nature-based features** In carrying out a project under this section, the Secretary shall, to the maximum extent practicable, seek to incorporate natural features and nature-based features (as those terms are defined in ).section 2289a(a) of this title

((3)) ** Consideration** In carrying out a project under this section, the Secretary shall, where appropriate, maximize the use of features for the reclamation, recycling, and reuse of flood water and stormwater associated with the project.

((4)) ** Items provided by non-Federal interest**

((A)) ** In general** The non-Federal interest for a project carried out under this section shall provide all land, easements, rights-of-way, and relocations necessary for the project.

((B)) ** Credit** The value of the land, easements, rights-of-way, and relocations provided under subparagraph (A) shall be credited toward the non-Federal share of the cost of the project.

((5)) ** Agreements** Construction of a project under this section shall be initiated only after a non-Federal interest has entered into a binding agreement with the Secretary to pay—

((A)) the non-Federal share of the costs of construction required under this section; and

((B)) 100 percent of any operation, maintenance, replacement, and rehabilitation costs associated with the project, in accordance with regulations prescribed by the Secretary.

((c)) ** Cost-share**

((1)) ** Study** Subject to paragraph (3), the Federal share of the cost of a study carried out under this section shall be 50 percent, except that the first $100,000 of the cost of the study shall be at Federal expense.

((2)) ** Construction** Subject to paragraph (3), the non-Federal share of the cost of a project carried out under this section shall be 35 percent.

((3)) ** Limitation** The total Federal amount expended for a study or project under this section shall be not more than $10,000,000.

((d)) ** Authorization of appropriations** There is authorized to be appropriated to the Secretary to carry out this section $50,000,000 for each fiscal year.