EFFECTS OF URBANIZATION ON TIMING OF FLOOD PEAKS ON TOWN CREEK IN JACKSON, MISSISSIPPI by B.E. Wasson Prepared by U.S. Geological Survey WRD Bulletin April - September 1971 TABLE OF CONTENTS Abstract Introduction Description of Basin     Town Creek     Airport Branch     West Branch     East Branch Flood of March 23, 1969     Rainfall     Timing of Flood Peaks Flood of April 17, 1969     Rainfall and Floods     Timing of Flood Peaks Spot Urbanization - Possible Explanation for the Abnormal Peaks Selected References FIGURES 1. Map of Jackson, Miss., showing rainfall of April 17, 1969, between 11 a.m. and 3 p.m. and location of streamflow measuring sites. 2. Stage and rainfall hydrographs, Town Creek at site 5 (Gallatin Street), March 23-24, 1969. 3. Stage and rainfall hydrographs, Town Creek at site 5 (Gallatin Street), April 17-18, 1969. TABLES 1. Times of flood crests for floods of March 23 and April 17, 1969, on Town Creek in Jackson, Miss. ABSTRACT During the floods of March and April 1969, the flood crest on Town Creek occurred at Gallatin Street before crests occurred at some upstream points. Heavy urbani- zation in the downstream part of the basin probably caused the abnormal sequence of flood peaks in Town Creek. Flood flow at Gallatin Street is spread over a greater length of time and the peak discharges caused by urbani- zation in the lower part of Town Creek basin seem to be lower than those that might be expected if the basin were more uniformly urbanized. LizardTech's Djvu plug-in is needed to view these reports. CLICK HERE TO VIEW THE ENTIRE REPORT For questions or comments, contact K. Van Wilson.