Geospatial data sets and hydraulic models for selected streams near Rittman in Wayne and Medina Counties, Ohio.
Dates
Publication Date
2021-05-24
Time Period
2021
Citation
Ostheimer, C.J., 2021, Geospatial data sets and hydraulic models for selected streams near Rittman in Wayne and Medina Counties, Ohio: U.S. Geological Survey data release, https://doi.org/10.5066/P9W6ROMC.
Summary
Digital flood-inundation maps were created by the U.S. Geological Survey (USGS) in cooperation with the Muskingum Watershed Conservancy District and the City of Rittman as part of a Federal Emergency Management Agency (FEMA) Flood Insurance Study (FIS). The flood-inundation maps show estimates of the areal extent corresponding to the 1% and 0.2% annual-exceedance probability floods. Flood profiles were computed for each stream reach by means of a one-dimensional step-backwater model.
Summary
Digital flood-inundation maps were created by the U.S. Geological Survey (USGS) in cooperation with the Muskingum Watershed Conservancy District and the City of Rittman as part of a Federal Emergency Management Agency (FEMA) Flood Insurance Study (FIS). The flood-inundation maps show estimates of the areal extent corresponding to the 1% and 0.2% annual-exceedance probability floods. Flood profiles were computed for each stream reach by means of a one-dimensional step-backwater model.
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Related External Resources
Type: Related Primary Publication
Ostheimer, C.J., 2021, Hydrologic and hydraulic analyses of selected streams near the city of Rittman in Wayne and Medina Counties, Ohio: U.S. Geological Survey Scientific Investigations Report 2021–5040, 30 p., https://doi.org/10.3133/sir20215040.
The purpose is to present the results of hydrologic and hydraulic analyses for four stream reaches in Wayne and Medina Counties, Ohio, totaling 36.3 miles in length (fig. 1). The analyses include (1) estimates of flood-peak streamflows corresponding to floods with annual exceedance probabilities (AEPs) of 10-, 4-, 2-, 1-, and 0.2-percent and 1-percent plus and (2) determination of water-surface profiles and flood-plain boundaries associated with the AEPs and a regulatory floodway. Streamflows with AEPs of 10, 4, 2, 1, and 0.2 percent correspond to recurrence intervals of 10, 25, 50, 100, and 500 years, respectively.
The initial target audience is the state and local agencies that must make emergency operational decisions during flooding events. However, since the graphics are easy to view, anyone with an interest during these events can make use of the maps, including the Federal Emergency Management Agency (FEMA), the U.S. Geological Survey (USGS), U.S. Army Corps of Engineers (USACE), state and local emergency managers, the media, and the general public.
