Flood-inundation map library for the Licking River and South Fork Licking River near Falmouth, Kentucky

Scientific Investigations Report 2016-5108
Prepared in cooperation with Pendleton County, Kentucky, and the U.S. Army Corps of Engineers–Louisville District
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Abstract

Digital flood inundation maps for a 17-mile reach of Licking River and 4-mile reach of South Fork Licking River near Falmouth, Kentucky, were created by the U.S. Geological Survey (USGS) in cooperation with Pendleton County and the U.S. Army Corps of Engineers–Louisville District. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://wim.usgs.gov/FIMI/FloodInundationMapper.html, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage on the Licking River at Catawba, Ky., (station 03253500) and the USGS streamgage on the South Fork Licking River at Hayes, Ky., (station 03253000). Current conditions (2015) for the USGS streamgages may be obtained online at the USGS National Water Information System site (http://waterdata.usgs.gov/nwis). In addition, the streamgage information has been provided to the National Weather Service (NWS) for incorporation into their Advanced Hydrologic Prediction Service (AHPS) flood warning system (http:/water.weather.gov/ahps/). The flood hydrograph forecasts provided by the NWS are usually collocated with USGS streamgages. The forecasted peak-stage information, also available on the NWS Web site, may be used in conjunction with the maps developed in this study to show predicted areas of flood inundation.

In this study, flood profiles were computed for the Licking River reach and South Fork Licking River reach by using a one-dimensional step-backwater model. The hydraulic model was calibrated by using the most current (2015) stage-discharge relations for the Licking River at Catawba, Ky., and the South Fork Licking River at Hayes, Ky., USGS streamgages. The calibrated model was then used to calculate 60 water-surface profiles for a sequence of flood stages, at 2-foot intervals, referenced to the streamgage datum and ranging from an elevation near bankfull to the elevation associated with a major flood that occurred in the region in 1997. To delineate the flooded area at each interval flood stage, the simulated water-surface profiles were combined with a digital elevation model of the study area by using geographic information system software.

The availability of these flood inundation maps for Falmouth, Ky., along with online information regarding current stages from the USGS streamgages and forecasted stages from the NWS, provides emergency management personnel and local residents with information that is critical for flood response activities such as evacuations, road closures, and post-flood recovery efforts.


Suggested Citation

Lant, J.G., 2016, Flood-Inundation Map Library for the Licking River and South Fork Licking River near Falmouth, Kentucky: U.S. Geological Survey Scientific Investigations Report 2016–5108, 13 p., http://dx.doi.org/10.3133/sir20165108.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • Constructing Water-Surface Profiles
  • Inundation Mapping
  • Summary
  • References Cited
  • Glossary

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Flood-inundation map library for the Licking River and South Fork Licking River near Falmouth, Kentucky
Series title Scientific Investigations Report
Series number 2016-5108
DOI 10.3133/sir20165108
Year Published 2016
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Kentucky Water Science Center
Description Report: vi, 13 p.; Metadata; Spatial Data; Read Me
Country United States
State Kentucky
City Falmouth
Other Geospatial Licking River
Online Only (Y/N) Y