FLOOD06381

• County: Otero
• Community: La Junta
• Stream Name: Arkansas River & Tributaries
• Basin: Arkansas
• Title: La Junta, Colorado Local Protection Project Phase I GDM Sediment Investigation
• Date: 9/1/1985
• Prepared For: US Army Corps of Engineers
• Prepared By: The Hydrologic Engineering Center
• Floodplain - Doc Type: Project

Table

4.1
4.2
4.3
4.4

4.5
5.1
5.2
5.3
5.4

5.5
6.1

6.2

List of Tables

Ti tie Pa",e

Arkansas River Cross sections Used for HEC-6 Simulations 9
Project Configuration Numbers 12
Existing to Project Cross-section Correspondence 14
Average Predicted Bed Elevations Changes within the Project
Subreach After 100 Years 28
Summary of Predicted Bed Elevation Changes After 100 Years 44
HEC-6 Single-Event Results, 50-Year Flood 62
HEC-6 Single-Event Results, 100-Year Flood 63
HEC-6 Single-Event Results, Standard Project Flood 64
Results of Hand Computations at River Mile 1197.2 (Reach of
Depostion) 65
Results of Hand Computations at River Mile 1198.9 (Reach of Scour) 66
Summary of HEC-6 Inflow/Outflow Points: Arkansas River, Avondale
to Las Animas, CO. 67
Flow Volumes for the Various Components of the Arkansas River
System: Avondale to Las Animas, CO. 67

iv