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Delineation of flooding within the upper Mississippi River Basin—Flood of June 19-July 31, 1993, in Davenport, Iowa, and vicinity

Hydrologic Atlas 735-C
By:
https://doi.org/10.3133/ha735C

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Abstract

The hydrologic investigations atlas shows areas in and near Davenport, Iowa, that were flooded by the Mississippi River in 1993. This atlas also depicts the Federal Emergency Management Agency 100-year flood boundary. The drainage basin upstream from Mississippi River Lock and Dam 15 at Davenport received between 100 and 250 percent of normal rainfall from January through July, 1993. The profile of the maximum water-surface elevations of the 1993 flood in the Davenport area is less than the Federal Emergency Management Agency 100-year flood profile. The Mississippi River Lock and Dam 15 tailwater elevation was above the flood elevation from June 19 to July 31, 1993, but did not exceed the 100-year flood elevation. For most of the time during October 1992 through September 1993, the daily mean discharge of the Mississippi River at Clinton, Iowa, greatly exceeded the monthly mean discharges from October 1874 through September 1993, but was less than the 100-year flood discharge. The daily mean discharge at Keokuk, Iowa, exceeded the 100-year flood discharge for nearly the entire month of July 1993.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Delineation of flooding within the upper Mississippi River Basin—Flood of June 19-July 31, 1993, in Davenport, Iowa, and vicinity
Series title Hydrologic Atlas
Series number 735
Chapter C
DOI 10.3133/ha735C
Year Published 1996
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Iowa Water Science Center
Description 1 Plate: 41.00 × 42.00 inches
Country United States
State Illinois, Iowa
City Davenport
Scale 24000
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details