Flood-Inundation Maps for the Flatrock Rover at Columbus, Indiana, 2012
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Prepared in cooperation with the Indiana Department of Transportation Flood-Inundation Maps for the Flatrock River at Columbus, Indiana, 2012 Pamphlet to accompany Scientific Investigations Map 3241 U.S. Department of the Interior U.S. Geological Survey Cover. Illustration showing simulated floods corresponding to streamgage stages of 9, 13, and 20 feet for Flatrock River at Columbus, Indiana. Flood-Inundation Maps for the Flatrock River at Columbus, Indiana, 2012 By William F. Coon Prepared in cooperation with the Indiana Department of Transportation Pamphlet to accompany Scientific Investigations Map 3241 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2013 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: Coon, W.F., 2013, Flood-inundation maps for the Flatrock River at Columbus, Indiana, 2012: U.S. Geological Survey Scientific Investigations Map 3241, 12 p., 12 sheets, available at http://pubs.usgs.gov/sim/3241 iii Contents Abstract ...........................................................................................................................................................1 Introduction ....................................................................................................................................................1 Purpose and Scope ..............................................................................................................................2 Study Area Description ........................................................................................................................4 Previous Studies ...................................................................................................................................4 Constructing Water-Surface Profiles .........................................................................................................5 Hydrologic and Steady-State Flow Data ...........................................................................................5 Topographic and Bathymetric Data ...................................................................................................5 Energy-Loss Factors .............................................................................................................................6 Model Calibration and Performance .................................................................................................6 Development of Water-Surface Profiles ...........................................................................................7 Development of Flood-Inundation Maps .................................................................................................10 Flood-Inundation Maps on the Internet ..........................................................................................10 Disclaimer for Flood-Inundation Maps ...........................................................................................10 Uncertainties and Limitations Regarding Use of Flood-Inundation Maps ................................10 Acknowledgments .......................................................................................................................................11 Summary........................................................................................................................................................11 References Cited..........................................................................................................................................11 iv Figures 1. Location of study reach for the Flatrock River at Columbus, Indiana, and location of U.S. Geological Survey streamgage .....................................................................................3 2. Simulated water-surface profile at a streamgage stage of 20.00 feet and high-water marks surveyed following the flood of June 7, 2008, at a stage of 19.94 feet, Flatrock River at Columbus, Indiana .........................................................................................................8 3. High water-surface profiles of the FEMA 1-percent annual exceedance probability flood and simulated floods corresponding to streamgage stages of 18 and 19 feet for Flatrock River at Columbus, Indiana. ..................................................................................8 4. Flood extents of the FEMA 1-percent annual exceedance probability flood and simulated floods corresponding to streamgage stages of 18 and 19 feet for Flatrock River at Columbus, Indiana .........................................................................................................9 Tables 1. U.S. Geological Survey streamgage information for Flatrock River at Columbus, Indiana ............................................................................................................................................2 2. Peak discharges for selected annual exceedance probabilities for Flatrock River at Columbus, Indiana (streamgage number 03363900) ...........................................................4 3. Calibration of model to target water-surface elevations at U.S. Geological Survey streamgage on Flatrock River at Columbus, Indiana (station number 03363900) ..............7 v Sheets [Separate documents available online with this report at the U.S. Geological Survey Publications Warehouse (http://pubs.usgs.gov/sim/3241/)] 1. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 9.0 feet and an elevation of 618.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 2. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 10.0 feet and an elevation of 619.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 3. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 11.0 feet and an elevation of 620.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 4. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 12.0 feet and an elevation of 621.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 5. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 13.0 feet and an elevation of 622.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 6. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 14.0 feet and an elevation of 623.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 7. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 15.0 feet and an elevation of 624.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 8. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 16.0 feet and an elevation of 625.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 9. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 17.0 feet and an elevation of 626.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 10. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 18.0 feet and an elevation of 627.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 11. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 19.0 feet and an elevation of 628.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River 12. Flood-inundation map for the Flatrock River at Columbus, Indiana, corresponding to a stage of 20.0 feet and an elevation of 629.74 feet (NAVD 88) at the U.S. Geological Survey streamgage number 03363900 on the Flatrock River vi Conversion Factors Inch/Pound to SI Multiply By To obtain Length foot (ft) 0.3048 meter (m) mile (mi) 1.609 kilometer (km) Area square mile (mi2) 2.590 square kilometer (km2) Flow rate cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s) Vertical coordinate information is referenced to either (1) stage, the height above an arbitrary datum established at a streamgage, or (2) elevation, the height above the North American Vertical Datum of 1988 (NAVD 88). Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Flood-Inundation Maps for the Flatrock River at Columbus, Indiana, 2012