Low-flow frequency and flow-duration characteristics of selected streams in Alabama through March 2014

Scientific Investigations Report 2017-5083
Prepared in cooperation with Alabama Association of Conservation Districts; Alabama Association of Resource Conservation and Development Councils; Alabama Department of Agriculture and Industries; Alabama Department of Conservation and Natural Resources—Division of Wildlife and Freshwater Fisheries; Alabama Department of Economic and Community Affairs—Office of Water Resources Division; Alabama Farmers Federation; Alabama Power; Choctawhatchee, Pea and Yellow Rivers Watershed Management Authority; Geological Survey of Alabama; and The University of Alabama—Water Policy and Law Institute
By:  and 



Low-flow statistics are needed by water-resource engineers, planners, and managers to protect and manage the water resources of Alabama. The accuracy of these statistics is influenced by such factors as length of record and specific hydrologic conditions measured in those records. As such, it is generally recommended that flow statistics be updated about every 10 years to provide improved and representative low-flow characteristics. The previous investigation of low-flow characteristics for Alabama included data through September 1990. Since that time, Alabama has experienced several historic droughts highlighting the need to update the low-flow characteristics at U.S. Geological Survey streamgaging stations. Consequently, this investigation was undertaken in cooperation with a number of State and local agencies to update low-flow frequency and flow-duration statistics at 210 continuous-record streamgaging stations in Alabama and 67 stations from basins that are shared with surrounding States. The flow characteristics were computed on the basis of available data through March 2014.

Suggested Citation

Feaster, T.D., and Lee, K.G., 2017, Low-flow frequency and flow-duration characteristics of selected streams in Alabama through March 2014: U.S. Geological Survey Scientific Investigations Report 2017–5083, 371 p., https://doi.org/10.3133/sir20175083.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • Methods of Analysis for Determining Flow Statistics 
  • Considerations for Accuracy of Low-Flow Statistics
  • Comparison With Previously Published Low-Flow Statistics 
  • Access to Updated Low-Flow Characteristics Through the StreamStats Application 
  • Summary
  • Selected References

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Low-flow frequency and flow-duration characteristics of selected streams in Alabama through March 2014
Series title Scientific Investigations Report
Series number 2017-5083
DOI 10.3133/sir20175083
Year Published 2017
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Lower Mississippi-Gulf Water Science Center
Description viii, 371 p.
Country United States
State Alabama
Online Only (Y/N) Y
Additional Online Files (Y/N) N