FLOOD02337

• County: Statewide
• Community: State
• Stream Name: South Platte River
• Basin: South Platte
• Title: Geomorphic Assessment at Surveyed Cross-sections South Platte River
• Date: 6/1/1996
• Prepared For: UDFCD
• Prepared By: Michael Stevens
• Floodplain - Doc Type: Floodplain Report/Masterplan

. TABLE OF CONTENTS (continued)

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APPENDIX C - TABLES.....................,.............................................................. III

APPENDIX D - PLOTTED CROSS SECTIONS............................................... 119

TABLE 1.

TABLE 2.

TABLE 3.

TABLE 4.

TABLE 5.

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

. Figure 7.

Figure 8.

LIST OF TABLES

Average and maximum and minimum cross-sectional
values for the period ofrecord....,............................................... 20

Cross-sectional values in the 1995-1996 winter season.............. 21

Aggradation and degradation in the period of monitoring
of the Metro South Platte River .......................'......................... 22

Summary of bank conditions ..................................................... 23

Notes for Table 4 ..................,..................................................... 25

LIST OF FIGURES

The top bank width of the South Platte River at the monitoring
cross sections between Brighton (Cross Section I) and
Chatfield Dam (Cross Section 53) ............................................ 4

The maximum bar height in all the monitored cross sections...... 5

Channel bed variation from the mean bed elevation for the
period of record. ............. ........ ......................... .......... .................. 8

Aggradation and degradation at the monitored cross sections..... 8

A view of Urban Veneer, dead and dying algae and deposited

organic sediment.. ... ... ... ................... ....... .... ... ..............,. .... ... ... ..... 9

The depth that the thalweg is below the average bed level.......... 10

History of bed and thalweg level changes at Cross Section 28.... 12

A diagonal gravel bar in the South Platte River creating a long
shallow rippled flow aerating the water ............w..................... 14

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