Colorado River Compact

E188292

The Colorado River Compact is a 1922 interstate agreement that allocates the river’s water among the seven U.S. basin states, forming the legal foundation for managing the Colorado River in the American West.

All labels observed (1)

Label Occurrences
Colorado River Compact canonical 3

How this entity was disambiguated

Statements (58)

Predicate Object
instanceOf foundational document of Colorado River law
interstate compact
legal instrument
water allocation agreement
affects hydropower generation on the Colorado River
municipal water supply in the Colorado River Basin
water supply for agriculture in the Colorado River Basin
allocatesFlowToBasin Lower Basin
Upper Basin
apportionmentBasis assumed average annual river flow of 15 million acre-feet at Lee Ferry
approvalStatute Boulder Canyon Project Act
approvalStatuteYear 1928
approvedBy United States Congress
basin Colorado River Basin
basinStateCount 7
createsDivision Lower Basin
Upper Basin
dateSigned 1922-11-24
federalRepresentative Herbert Hoover
federalRepresentativeRole Secretary of Commerce of the United States
surface form: U.S. Secretary of Commerce
formsPartOf Law of the River
geographicScope Old West
surface form: American West

United States of America
surface form: United States
keyLocation Lee Ferry, Arizona
language English
legalFoundationFor Colorado River management in the American West
lowerBasinAllocation 7.5 million acre-feet per year
lowerBasinState Arizona
California, United States
surface form: California

Nevada
measurementPoint Lee Ferry, Arizona
negotiatedBy Colorado River Commission
placeSigned Santa Fe, New Mexico
purpose to apportion the use of the waters of the Colorado River System between Upper Basin and Lower Basin states
to avoid future interstate water conflicts
to provide basis for development of the Colorado River Basin
relatedAgreement Boulder Canyon Project Act
Colorado River Basin Project Act
surface form: Colorado River Basin Project Act of 1968

Mexican Water Treaty of 1944
Upper Colorado River Basin Compact
requiresDeliveryAtLeeFerry 75 million acre-feet over any consecutive 10-year period
river Colorado River
signatoryState Arizona
California, United States
surface form: California

Colorado
Nevada
New Mexico
Utah
Wyoming
subjectMatter interstate water allocation
water rights
surplusAllocation 1.0 million acre-feet per year to Lower Basin under certain conditions
upperBasinAllocation 7.5 million acre-feet per year
upperBasinState Colorado
New Mexico
Utah
Wyoming
yearSigned 1922

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Colorado River governedBy Colorado River Compact
Law of the River includesInstrument Colorado River Compact
Colorado River Basin governedBy Colorado River Compact