33 U.S.C. § 467d

National inventory of dams and low-head dams

(a) In general

The Secretary of the Army shall maintain and update information on the inventory of dams and low-head dams in the United States.

(b) Dams

The inventory maintained under subsection (a) shall include any available information assessing each dam based on inspections completed by a Federal agency, a State dam safety agency, or a Tribal government.

The inventory maintained under subsection (a) shall include—

(1)

the location, ownership, description, current use, condition, height, and length of each low-head dam;

(2)

any information on public safety conditions at each low-head dam; and

(3)

any other relevant information concerning low-head dams.

(d) Data

In carrying out this section, the Secretary shall—

(1)

coordinate with Federal and State agencies, Tribal governments, and other relevant entities; and

(2)

use data provided to the Secretary by those agencies and entities.

(e) Public availability

The Secretary shall make the inventory maintained under subsection (a) publicly available (including on a publicly available website), including—

(1)

public safety information on the dangers of low-head dams; and

(2)

a directory of financial and technical assistance resources available to reduce safety hazards and fish passage barriers at low-head dams.

(f) Clarification

Nothing in this section provides authority to the Secretary to carry out an activity, with respect to a low-head dam, that is not explicitly authorized under this section.

(g) Low-head dam defined

In this section, the term “low-head dam” means a river-wide artificial barrier that generally spans a stream channel, blocking the waterway and creating a backup of water behind the barrier, with a drop off over the wall of not less than 6 inches and not more than 25 feet.

( Pub. L. 92–367, § 6 , as added Pub. L. 104–303, title II, § 215(c)(8) , Oct. 12, 1996 , 110 Stat. 3687 ; amended Pub. L. 109–460, § 1(b) , Dec. 22, 2006 , 120 Stat. 3401 ; Pub. L. 118–272, div. A, title I, § 1132(b) , Jan. 4, 2025 , 138 Stat. 3021 .)