SUMMARY OF FLOODS IN THE UNITED STATES DURING 1990 AND 1991
Flood of May 31, 1990, in Warren County, Mississippiby W.T. Baldwin
Prepared by the U.S. Geological Survey as Water-Supply Paper 2474
1996
ABSTRACT
On May 31, 1990, a storm that stalled over Warren County in west-central Mississippi (fig. 25) produced intense rainfall. Several parts of the county received as much as 7 inches of rain in an 11-hour period ending at 5 p.m. Cumulative rainfall data from the National Oceanic and Atmospheric Administration precipitation data site at the Waterways Experiment Station, Vicksburg, are shown in figure 26. The most intense 3-hour and 6-hour rainfall recorded at this gage during the storm was 5.2 and 6.4 inches, respec- tively, having recurrence intervals between 50 and 100 years as report by Hershfield (1961).
Hamilton Heights subdivision, which is located near the convergence of Hatcher Bayou and Durden Creek in south Vicksburg (fig. 25), experienced what many residents said was the worst flooding in the 20-year history of the neighborhood. The inundation resulted in 120 families being evacuated. The recurrence in- terval of the flood along Hatcher Bayou and Durden Creek was approximately 25 years. Clear Creek near Bovina (fig. 25) experienced the largest flood since 1969 and the second largest in 37 years of record. This flood had a maximum discharge of 18,100 cubic feet per second at a stage of 29.37 feet at the flood- determination site shown in figure 25 and had a calculated 60-year recurrence interval.
As a result of the floodiong, six county roads and two highways were closed. A total of 187 homes and businesses were evacuated. The bridge over Clear Creek near Bovina was closed due to shifted or damaged pilings. A bridge in Bovina was washed out. The Director of the Vicksburg-Warren County Emergency Management Agency estimated the total damage caused by the flood at $6 million.
FIGURES
25. Location of flood-determination and precipitation data sites for flood of May 31, 1990, in Warren County, Mississippi
26. Cumulative rainfall of May 31, 1990, at precipitation data site located at the Waterways Experiment Station, Vicksburg, Mississipppi (data from National Oceanic and Atmospheric Administration, 1990).
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