Geology topics

E.E. Webber

Publications and source records attributed to E.E. Webber.

3 recordsLinked to original sources

USGS1982

Flood of June 13-15, 1981, in the Blanchard River basin, northwestern Ohio

The flood of June 13-15, 1981, in the Blanchard River basin in northwestern Ohio caused major damage in Findlay, Ottawa, and adjacent rural areas. Approximately 25 percent of Findlay and 55 percent of Ottawa were flooded. Estimated crop damage was $12 million in Hancock Country, $7 million in Wyandot Country, and $3 million in Putnam Country. During the flood, the maximum gage height of the Blanchard River at the U.S. Geological Survey gaging station near Findlay was 17.43 feet, gage datum. This was 0.67 foot higher than the previous peak of 16.76 feet, February 11, 1959. The corresponding peak discharge, 13,000 cubic feet per second, was estimated to have a recurrence interval of 50 years. Recurrence intervals of peak flows at other locations on the Blanchard River and on tributary streams were estimated to range from 25 to more than 100 years.

Water-Resources Investigations Report↗

USGS1981

Floodflow characteristics related to channel geometry in Ohio

Techniques for estimating magnitude and frequency of flood-peak discharges, based on channel geometry parameters, are presented as a method for evaluating Ohio floods in geographic areas deficient in flow data. One hundred and sixty gaging stations were selected on streams with alluvial channels unaltered by man. Exposed bedrock is absent from the channels in the vicinity of the surveyed cross sections. Peak stream discharges at the selected sites were related to channel geometry parameters. Active channel width is the only statistically significant parameter. Channel geometry parameters which were tested and found to be statistically insignificant are active channel average depth, bankfull width, and bankfull average depth. The average standard errors of estimate for the resulting statewide equations, with recurrence intervals of 2, 5, 10 25, 50 and 100 years, range from 42 to 55 percent.

Open-File Report↗

USGS1981

Flood of August 20, 1979, on a tributary of Chickamauga Creek, near Gallipolis, Ohio

An intense summer rain estimated at 4 to 5 inches in 2.5 hours caused flooding on a Chickamauga Creek tributary 4.5 miles northwest of Gallipoolis, Ohio. Computation of a peak discharge of 1,350 cubic feet per second from 3.03 square miles of drainage area (446 cubic feet per second per square mile) indicates a greater-than 100-year flood.

Open-File Report↗