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Alabama Statewide Flood Frequency

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By Lower Mississippi-Gulf Water Science Center September 29, 2001

The magnitude and frequency of floods are important factors in the design of bridges, culverts, highway embankments, dams, and other hydraulic structures near streams. Information on flood magnitude and frequency is also used in flood plain management and development, and in establishing flood insurance rates. The objective of this project is to develop improved methods and equations for estimating the magnitude and frequency of floods for streams in Alabama having the 2-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-year recurrence intervals. These methods and equations will be documented in a Water-Resources Investigations Report as well as the flood-frequencies and annual peaks at gaging stations in Alabama.

Below are publications associated with this project.

Magnitude and Frequency of Floods in Alabama, 2003

Methods of estimating flood magnitudes for recurrence intervals of 1.5, 2, 5, 10, 25, 50, 100, 200, and 500 years have been developed for rural streams in Alabama that are not affected by regulation or urbanization. Regression relations were developed using generalized least-squares regression techniques to estimate flood magnitude and frequency on ungaged streams as a function of the basin draina
Authors
T.S. Hedgecock, Toby D. Feaster
By
Water Resources Mission Area, Lower Mississippi-Gulf Water Science Center

Magnitude and frequency of floods in Alabama

Methods are presented to estimate flood magnitude for selected recurrence intervals for urban and rural streams with drainage areas from 1 to 22,000 square miles. Seven hydrologic areas were delineated and regression equations were developed for six areas. Hydrologic data could not be regionalized for the seventh area. Drainage area was the only independent variable used in the equations for five
Authors
D.A. Olin

Below are partners associated with this project.

Alabama Department of Transportation

The magnitude and frequency of floods are important factors in the design of bridges, culverts, highway embankments, dams, and other hydraulic structures near streams. Information on flood magnitude and frequency is also used in flood plain management and development, and in establishing flood insurance rates. The objective of this project is to develop improved methods and equations for estimating the magnitude and frequency of floods for streams in Alabama having the 2-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-year recurrence intervals. These methods and equations will be documented in a Water-Resources Investigations Report as well as the flood-frequencies and annual peaks at gaging stations in Alabama.

Below are publications associated with this project.

Magnitude and Frequency of Floods in Alabama, 2003

Methods of estimating flood magnitudes for recurrence intervals of 1.5, 2, 5, 10, 25, 50, 100, 200, and 500 years have been developed for rural streams in Alabama that are not affected by regulation or urbanization. Regression relations were developed using generalized least-squares regression techniques to estimate flood magnitude and frequency on ungaged streams as a function of the basin draina
Authors
T.S. Hedgecock, Toby D. Feaster
By
Water Resources Mission Area, Lower Mississippi-Gulf Water Science Center

Magnitude and frequency of floods in Alabama

Methods are presented to estimate flood magnitude for selected recurrence intervals for urban and rural streams with drainage areas from 1 to 22,000 square miles. Seven hydrologic areas were delineated and regression equations were developed for six areas. Hydrologic data could not be regionalized for the seventh area. Drainage area was the only independent variable used in the equations for five
Authors
D.A. Olin

Below are partners associated with this project.

Alabama Department of Transportation

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