43 U.S.C. § 1600c Colorado River Floodway

• Library: United States Statutes
• Edition: 2023 Edition
• Currency: Current through P.L. 118-19 (published on www.congress.gov on 10/06/2023)

(a) Establishment

There is established the Colorado River Floodway as identified and generally depicted on maps that are to be submitted by the Secretary.

(b) Study of tributary floodflows; determination of Floodway boundary

Within eighteen months after October 8, 1986, the Secretary, in consultation with the seven Colorado River Basin States, represented by persons designated by the Governors of those States, the Colorado River Floodway Task Force, and any other interested parties shall:

(1) complete a study of the tributary floodflows downstream of Davis Dam;

(2) define the specific boundaries of the Colorado River Floodway so that the Floodway can accommodate either a one-in-one hundred year river flow consisting of controlled releases and tributary inflow, or a flow of forty thousand cubic feet per second (cfs), whichever is greater, from below Davis Dam to the Southerly International Boundary between the United States of America and the Republic of Mexico.

(c) Review and modification of boundaries; notice and comment; written justification for decision of Secretary

(1) The Secretary shall conduct, at least once every five years, a review of the Colorado River Floodway and make, after notice to and in consultation with appropriate chief executive officers of States, counties, municipalities, water districts, Indian tribes, or equivalent jurisdictions in which the Floodway is located, and others, such minor and technical modifications to the boundaries of the Floodway as are necessary solely to reflect changes that have occurred in the size or location of any portion of the floodplain as a result of natural forces, and as necessary pursuant to subsection (c) of section 1600e of this title.