Collapse to view only § 1600a. Definitions

§ 1600. Findings and purposes
(a) Findings
The Congress finds that—
(1) there are multiple purposes established by law for the dams and other control structures administered by the Secretary of the Interior on the Colorado River;
(2) the maintenance of the Colorado River Floodway established in this chapter is essential to accomplish these multiple purposes;
(3) developments within the Floodway are and will continue to be vulnerable to damaging flows such as the property damage which occurred in 1983 and may occur in the future;
(4) certain Federal programs which subsidize or permit development within the Floodway threaten human life, health, property, and natural resources; and
(5) there is a need for coordinated Federal, State, and local action to limit Floodway development.
(b) Purpose
The Congress declares that the purposes of this chapter are to—
(1) establish the Colorado River Floodway, as designated and described further in this chapter, so as to provide benefits to river users and to minimize the loss of human life, protect health and safety, and minimize damage to property and natural resources by restricting future Federal expenditures and financial assistance, except public health funds, which have the effect of encouraging development within the Colorado River Floodway; and
(2) establish a task force to advise the Secretary of the Interior and the Congress on establishment of the Floodway and on managing existing and future development within the Floodway, including the appropriateness of compensation in specified cases of extraordinary hardship.
(Pub. L. 99–450, § 2, Oct. 8, 1986, 100 Stat. 1129.)
§ 1600a. Definitions
(a) The term “Committees” refers to the Committee on Natural Resources of the United States House of Representatives and the Committee on Environment and Public Works and the Committee on Energy and Natural Resources of the United States Senate.
(b) The term “financial assistance” means any form of loan, grant, guaranty, insurance, payment, rebate, subsidy, or any other form of direct or indirect Federal assistance other than—
(1) general revenue-sharing grants made under section 6702 1
1 See References in Text note below.
of title 31;
(2) deposit or account insurance for customers of banks, savings and loan associations, credit unions, or similar institutions;
(3) the purchase of mortgages or loans by the Government National Mortgage Association, the Federal National Mortgage Association, or the Federal Home Loan Mortgage Corporation;
(4) assistance for environmental studies, plans, and assessments that are required incident to the issuance of permits or other authorizations under Federal law; and
(5) assistance pursuant to programs entirely unrelated to development, such as any Federal or federally assisted public assistance program or any Federal old-age, survivors, or disability insurance program.
Such term also includes flood insurance described in sections 2
2 So in original. Probably should be in the singular.
4029(a) and (b) of title 42 on and after the dates on which the provisions of those sections 2 become effective.
(c) The term “Secretary” means the Secretary of the Interior.
(d) The term “water district” means any public agency providing water service, including water districts, county water districts, public utility districts, and irrigation districts.
(e) The term “Floodway” means the Colorado River Floodway established in section 1600c of this title.
(Pub. L. 99–450, § 3, Oct. 8, 1986, 100 Stat. 1129; Pub. L. 103–437, § 16(a)(4), Nov. 2, 1994, 108 Stat. 4594.)
§ 1600b. Colorado River Floodway Task Force
(a) Establishment and membership
To advise the Secretary and the Congress there shall be a Colorado River Floodway Task Force, which shall include one representative of—
(1) each State (appointed by the Governor) and Indian reservation in which the Floodway is located;
(2) each county in which the Floodway is located;
(3) a law enforcement agency from each county in which the Floodway is located;
(4) each water district in which the Floodway is located;
(5) the cities of Needles, Parker, Blythe, Bullhead City, Yuma, Laughlin, Lake Havasu City, Nevada (if and when incorporated), and Mojave County, Arizona Supervisor District No. 2 (chosen by, but not a member of the Board of Supervisors);
(6) of the Chamber of Commerce from each county in which the Floodway is located;
(7) the Colorado River Wildlife Council;
(8) the Army Corps of Engineers;
(9) the Federal Emergency Management Agency (FEMA);
(10) the Department of Agriculture;
(11) the Department of the Interior; and
(12) the Department of State.
(b) Charter and operation; reports and recommendations
The task force shall be chartered and operate under the provisions of chapter 10 of title 5 and shall prepare recommendations concerning the Colorado River Floodway, which recommendations shall deal with:
(1) the means to restore and maintain the Floodway specified in section 1600c of this title, including, but not limited to, specific instances where land transfers or relocations, or other changes in land management, might best effect the purposes of this chapter;
(2) the necessity for additional Floodway management legislation at local, tribal, State, and Federal levels;
(3) the development of specific design criteria for the creation of the Floodway boundaries;
(4) the review of mapping procedures for Floodway boundaries;
(5) whether compensation should be recommended in specific cases of economic hardship resulting from impacts of the 1983 flood on property outside the Floodway which could not reasonably have been foreseen; and
(6) the potential application of the Floodway on Indian lands and recommended legislation or regulations that might be needed to achieve the purposes of the Floodway taking into consideration the special Federal status of Indian lands.
(c) Termination of task force; report to Secretary and Congressional Committees
(Pub. L. 99–450, § 4, Oct. 8, 1986, 100 Stat. 1130; Pub. L. 117–286, § 4(a)(284), Dec. 27, 2022, 136 Stat. 4337.)
§ 1600c. Colorado River Floodway
(a) Establishment
(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.
(2) If, in the case of any minor and technical modification to the boundaries of the Floodway made under the authority of this subsection, an appropriate chief executive officer of a State, county, municipality, water district, Indian tribe, or equivalent jurisdiction, to which notice was given in accordance with this subsection files comments disagreeing with all or part of the modification and the Secretary makes a modification which is in conflict with such comments, the Secretary shall submit to the chief executive officer a written justification for his failure to make modifications consistent with such comments or proposals.
(Pub. L. 99–450, § 5,
§ 1600d. Limitations on Federal expenditures affecting Floodway
(a) Except as provided in section 1600e of this title, no new expenditures or new financial assistance may be made available under authority of any Federal law for any purpose within the Floodway established under section 1600c of this title.
(b) An expenditure or financial assistance made available under authority of Federal law shall, for purposes of this chapter, be a new expenditure or new financial assistance if—
(1) in any case with respect to which specific appropriations are required, no money for construction or purchase purposes was appropriated before October 8, 1986; or
(2) no legally binding commitment for the expenditure or financial assistance was made before October 8, 1986.
(Pub. L. 99–450, § 6, Oct. 8, 1986, 100 Stat. 1132.)
§ 1600e. ExceptionsNotwithstanding section 1600d of this title, the appropriate Federal officer, after consultation with the Secretary, may make Federal expenditures or financial assistance available within the Colorado River Floodway for—
(a) any dam, channel or levee construction, operation or maintenance for the purpose of flood control, water conservation, power or water quality;
(b) other remedial or corrective actions, including but not limited to drainage facilities essential to assist in controlling adjacent high ground water conditions caused by flood flows;
(c) the maintenance, replacement, reconstruction, repair, and expansion, of publicly or tribally owned or operated roads, structures (including bridges), or facilities: Provided, That, no such expansion shall be permitted unless—
(1) the expansion is designed and built in accordance with the procedures and standards established in section 650.101 of title 23, Code of Federal Regulations, and the following as they may be amended from time to time; and
(2) the boundaries of the Floodway are adjusted to account for changes in flows caused, directly or indirectly, by the expansion;
(d) military activities essential to national security;
(e) any of the following actions or projects, but only if the Secretary finds that the making available of expenditures or assistance therefor is consistent with the purposes of this chapter:
(1) projects for the study, management, protection and enhancement of fish and wildlife resources and habitats, including, but not limited to, acquisition of fish and wildlife habitats and related lands, stabilization projects for fish and wildlife habitats, and recreational projects;
(2) the establishment, operation, and maintenance of air and water navigation aids and devices, and for access thereto;
(3) projects eligible for funding under chapter 2003 of title 54;
(4) scientific research, including but not limited to aeronautical, atmospheric, space, geologic, marine, fish and wildlife and other research, development, and applications;
(5) assistance for emergency actions essential to the saving of lives and the protection of property and the public health and safety, if such actions are performed pursuant to sections 305 and 306 of the Disaster Relief Act of 1974 1
1 See References in Text note below.
(42 U.S.C. 5145 and 5146) and are limited to actions that are necessary to alleviate the emergency. Disaster assistance under other provisions of the Disaster Relief Act of 1974 1 (Public Law 93–288, as amended) [42 U.S.C. 5121 et seq.] may also be provided with respect to persons residing within the Floodway, or structures or public infrastructure in existence or substantially under construction therein, on the date ninety days after October 8, 1986: Provided, That, such persons, or with respect to public infrastructure the State or local political entity which owns or controls such infrastructure, had purchased flood insurance for structures or infrastructure under the National Flood Insurance Program, if eligible, and had taken prudent and reasonable steps, as determined by the Administrator of the Federal Emergency Management Agency, to minimize damage from future floods or operations of the Floodway established in the chapter;
(6) other assistance for public health purposes, such as mosquito abatement programs;
(7) nonstructural projects for riverbank stabilization that are designed to enhance or restore natural stabilization systems;
(8) publicly or tribally financed, owned and operated compatible recreational developments such as regional parks, golf courses, docks, boat launching ramps (including steamboat and ferry landings), including compatible recreation uses and accompanying utility or interpretive improvements which are essential or closely related to the purpose of restoring the accuracy of a National Historical Landmark and which meet best engineering practices considering the nature of Floodway conditions;
(9) compatible agricultural uses that do not involve permanent crops and include only a minimal amount of permanent facilities in the Floodway.
(Pub. L. 99–450, § 7, Oct. 8, 1986, 100 Stat. 1132; Pub. L. 109–295, title VI, § 612(c), Oct. 4, 2006, 120 Stat. 1410; Pub. L. 113–287, § 5(l)(5), Dec. 19, 2014, 128 Stat. 3271.)
§ 1600f. Certification of compliance

The Secretary of the Interior shall, on behalf of each Federal agency concerned, make written certification that each agency has complied with the provisions of this chapter during each fiscal year beginning after September 30, 1985. Such certification shall be submitted on an annual basis to the United States House of Representatives and the United States Senate on or before January 15 of each fiscal year.

(Pub. L. 99–450, § 8, Oct. 8, 1986, 100 Stat. 1134.)
§ 1600g. Priority of laws

Nothing contained in this chapter shall be construed to alter, amend, repeal, modify, interpret, or be in conflict with the provisions of the Colorado River Compact (45 Stat. 1057), the Upper Colorado River Basin Compact (63 Stat. 31), the Water Treaty of 1944 with the United Mexican States (Treaty Series 944, 59 Stat. 1219), the Flood Control Act of 1944 (58 Stat. 887), the decree entered by the Supreme Court of the United States in Arizona v. California, and others (376 U.S. 340), the Boulder Canyon Project Act (45 Stat. 1057) [43 U.S.C. 617 et seq.], the Boulder Canyon Project Adjustment Act (54 Stat. 774; 43 U.S.C. 618a) [43 U.S.C. 618 et seq.], the Colorado River Storage Project Act (70 Stat. 105; 43 U.S.C. 620) [43 U.S.C. 620 et seq.], the Colorado River Basin Project Act (82 Stat. 885; 43 U.S.C. 1501) [43 U.S.C. 1501 et seq.]. Furthermore, nothing contained in this chapter shall be construed as indicating an intent on the part of the Congress to change the existing relationship of other Federal laws to the law of a State, or a political subdivision of a State, or to relieve any person of any obligation imposed by any law of any State, tribe, or political subdivision of a State. No provision of this chapter shall be construed to invalidate any provision of State, tribal, or local law unless there is a direct conflict between such provision and the law of the State, or political subdivision of the State or tribe, so that the two cannot be reconciled or consistently stand together. Inconsistencies shall be reviewed by the task force, and the task force shall make recommendations concerning such local laws. This chapter shall in no way be interpreted to interfere with a State’s or tribe’s right to protect, rehabilitate, preserve, and restore lands within its established boundary.

(Pub. L. 99–450, § 9, Oct. 8, 1986, 100 Stat. 1134.)
§ 1600h. Separability

If any provision of this chapter or the application thereof to any person or circumstances is held invalid, the remainder of the chapter and the application of such provision to other persons not similarly situated or to other circumstances shall not be affected thereby.

(Pub. L. 99–450, § 10, Oct. 8, 1986, 100 Stat. 1134.)
§ 1600i. Reports to Congress

Within one year after October 8, 1986, the Secretary shall prepare and submit to the Committees a report regarding the Colorado River Floodway, the task force’s report, and the Secretary’s recommendations with respect to the objectives outlined in section 1600b(b) of this title. In making his report, the Secretary shall analyze the effects of this chapter on the economic development of the Indian tribes whose lands are located within the Floodway.

(Pub. L. 99–450, § 11, Oct. 8, 1986, 100 Stat. 1134.)
§ 1600j. Federal leases
(a) Lease of lands owned in whole or in part by United States within Floodway; determination of consistency with operation and maintenance
(b) Extension of existing leases; minimization of inconsistency with operation and maintenance of Floodway
(c) Lease of lands owned in whole or in part by United States between Hoover Dam and Davis Dam
(d) Lease operations on Indian lands
(e) Lands held in trust by United States for benefit of Indian tribes or individuals
(Pub. L. 99–450, § 13, Oct. 8, 1986, 100 Stat. 1135.)
§ 1600k. Notices and existing laws
(a) Provisions relating to construction work, liability for damage, etc., on Mississippi River; notice to lessees
(1) Nothing in this chapter shall alter or affect in any way the provisions of section 702c of title 33.
(2) The Secretary shall provide notice of the provisions of section 702c of title 33 and this chapter to all existing and prospective lessees of lands leased by the United States and within the Colorado River Floodway.
(b) National Flood Insurance Act and National Flood Insurance Program; continuation
(c) National Flood Insurance Act provisions relating directly to Floodway; notice to communities affected
(Pub. L. 99–450, § 14, Oct. 8, 1986, 100 Stat. 1136.)
§ 1600l. Authorization of appropriations

There is authorized to be appropriated to the Department of the Interior $600,000, through the end of fiscal year 1990, in addition to any other funds now available to the Department to discharge its duties to implement sections 1600b to 1600k of this title and section 4029 of title 42: Provided, That by mutual agreement, such funds shall be made available to the Federal Emergency Management Agency to discharge its duties under section 4029 of title 42: Provided further, That the provisions of sections 1600d and 1600e of this title shall not be affected by this section: And Provided further, in addition, Indian tribes may be eligible under Public Law 93–638 [25 U.S.C. 5301 et seq.] to contract for studies of Indian lands required under the provisions of this chapter.

(Pub. L. 99–450, § 15, Oct. 8, 1986, 100 Stat. 1136.)