Reanalysis of Flood of Record Using HEC-2, HEC-RAS, and USGS Gauge Data
Publication: Journal of Hydrologic Engineering
Volume 21, Issue 6
Abstract
Three independent analyses establish that the Conestoga River flow published by the U.S. Geological Survey (USGS) for Tropical Storm Agnes in 1972 of () should have been at least (), an increase of over 16%. The three analyses included an empirical analysis of the data for U.S. Geological Survey Gauge 01576500, a reanalysis of a 1978 U.S. Army Corp of Engineers Hydrologic Engineering Center (HEC)-2 simulation of the Conestoga River, and a retrofit and minor corrections to a preliminary 2013 HEC-RAS (river analysis system) simulation of the Conestoga River.
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Acknowledgments
The author acknowledges Annette Lockwood for her dedicated editing and his wife Suzanne and son Rory for their support during this project. The author greatly appreciates the time and expertise of the reviewers, especially the annotated manuscript provided by Reviewer 3. The author also wishes to thank colleagues at Rettew Associates, Incorporated who reviewed an early version of this paper.
References
Benson, M. A., and Dalrymple, T. (1967). “General field and office procedures for indirect discharge measurements.” U.S. Geological Survey Techniques of Water-Resources Investigations, U.S. Geological Survey, Washington, DC.
Boswell Yule Jordan Engineering. (1989). “Hydrologic and Hydraulic Report for Relocating PA Route 23 over Conestoga River and an Unnamed Tributary to Conestoga River, Lancaster County.” S.R. 6023 (L.R. 1124), Section B01, Pennsylvania Dept. of Transportation, Camp Hill, PA.
Cohn, T. A., Lane, W. L., and Baier, W. G. (1997). “An algorithm for computing moments-based quantile estimates when historical flood information is available.” Water Resour. Res., 33(9), 2089–2096.
Dalrymple, T. (1960). “Flood-frequency analyses, manual of hydrology: Part 3. Flood flow techniques.”, Washington, DC.
FEMA. (1980). “Flood insurance study, Township of East Lampeter, Lancaster County, Pennsylvania.” Washington, DC.
FEMA. (2002). “Floodplain modeling manual, HEC-RAS procedures for HEC-2 modelers.” Washington, DC.
FEMA. (2013). “Flood insurance study, Lancaster County, Pennsylvania, all jurisdictions.” Washington, DC.
FEMA. (2015). “Lower Susquehanna watershed map.” 〈http://www.riskmap3.com/sites/default/files/lower_susquehanna_watershed_map.pdf〉 (Dec. 13, 2015).
PeakFQ version 7.1 [Computer software]. U.S. Geological Survey, Reston, VA.
Rantz, S. E., et al. (1982). “Measurement and computation of streamflow.” Computation of discharge, Vol. 2, U.S. Geological Survey, Washington, DC, 330–331.
U.S. Army Corps of Engineers. (1991). “HEC-2 water surface profiles.” Hydrologic Engineering Center, Davis, CA.
U.S. Army Corps of Engineers. (2010a). “HEC-RAS river analysis system.” Hydraulic reference manual, version 4.1, Hydrologic Engineering Center, Davis, CA.
U.S. Army Corps of Engineers. (2010b). “HEC-RAS river analysis system.” User’s manual, version 4.1, Hydrologic Engineering Center, Davis, CA.
U.S. DOT. (1961). “Design charts for open channel flow.” Washington, DC.
USGS. (2015a). 〈http://waterdata.usgs.gov/nwisweb/data/ratings/exsa/USGS.01576500.exsa.rdb〉 (Aug. 26, 2015).
USGS. (2015b). “USGS 01576500 Conestoga River at Lancaster, PA.” 〈http://waterdata.usgs.gov/pa/nwis/uv/?site_no=01576500&PARAmemter_cd=00065,00060,00010〉.
USGS and NOAA (National Oceanic and Atmospheric Administration). (1975). “Hurricane Agnes Rainfall and Floods, June–July 1972.” Washington, DC.
Weaver, A. (2016a). “Auxiliary file 1 for reanalysis of flood of record using HEC-2, FEC-RAS, and USGS gauge data. figshare.” 〈https://doi.org/10.6084/m9.figshare.2060448.v1〉 (Jan. 4, 2016).
Weaver, A. (2016b). “Auxiliary file 2 for reanalysis of flood of record using HEC-2, FEC-RAS, and USGS gauge data. figshare.” 〈https://doi.org/10.6084/m9.figshare.2060439.v1〉 (Jan. 4, 2016).
Weaver, A. (2016c). “Auxiliary file 3 for reanalysis of flood of record using HEC-2, FEC-RAS, and USGS gauge data. figshare.” 〈https://doi.org/10.6084/m9.figshare.2060451.v1〉 (Jan. 4, 2016).
Weston, R. F. (1978). “Final floodway upper Conestoga Creek.” Federal Emergency Management Agency, Engineering Library, Alexandria, VA.
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© 2016 American Society of Civil Engineers.
History
Received: Mar 27, 2015
Accepted: Dec 1, 2015
Published online: Mar 7, 2016
Published in print: Jun 1, 2016
Discussion open until: Aug 7, 2016
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