WSP10841

• File Number: 8200.760
• Description: Yampa River General
• State: CO
• Basin: Yampa/White
• Water Division: 6
• Date: 1/1/1993
• Author: Hydroshpere
• Title: Yampa River Basin Alternatives Feasibility Study - Executive Summary - Draft - January 1993
• Water Supply Pro - Doc Type: Report/Study

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LIST OF FIGURES

Figure No.

Page No.

I-I General Location of the Yampa River Basin................................................. 1-2
1-2 Geographical Features of the Yampa River Basin .......................................... 1-3

2-1 Hydrographic Features of the Yampa River Basin ......................................... 2-2
2-2 Average Annual Mass Balance of the Yampa-River Mainstem .......................... 2-3
2-3 Location of Key Basin Water Rights .......................................................... 2-7

3-1 Location of Yampa River Basin Water Reservoirs and Demands ...................... 3-13

4-1 Location of 64 Potential Reservoir Sites ..................................................... 4-2
4-2 Nine Reservoir Sites Visited in June Of 1991 ...............................................4-7
4-3 Final Five Recommended Reservoir Sites................................................... 4-28

5-1 Network Diagram of the Yampa River Basin Mode!....................................... 5-7
5-2 General Relationship Between Existing and Projected Future Demands.. ............ 5-15
5-3 Modeled Operations of a Hypothetical Reservoir ................... ....................... 5-22

6-1 Water Delivery Shortages - Scenario 1........................................................ 6-9
6-2 End of Month Reservoir Contents - Scenario 1............................................. 6-10
6-3 Water Delivery Shortages - Scenario 11...................................................:.. 6-12
6-4 End of Month Reservoir Contents - Scenario II............................................ 6-14
6-5 Water Delivery Shortages - Scenario III..................................................... 6-17
6-6 End of Month Reservoir Contents - Scenario III........................................... 6-18
6-7 Water Delivery Shortages - Scenario IV.................................................... 6-22
6-8 End of Month Reservoir Contents - Scenario IV.......................................... 6-23
6-9 Water Delivery Shortages - Scenario V..................................................... 6-26
6-10 End of Month Reservoir Contents - Scenario V ...........................................6-27
6-11 Modeled Reservoir Water Surface Fluctuations............................................ 6-30

7-1 Relationship Between Demand Shortages and Elkhead Reservoir Size................. 7-5
7-2 Relationship Between Demand Shortages and Stagecoach Reservoir Size ............. 7-5
7-3 Modeled End of Month Reservoir Contents for Near-term Scenario .................. 7-13
7-4 Modeled End of Month Reservoir Contents for long-term Scenario ................... 7-14
7-5 Comparison of Daily vs. Monthly Flows at Deerlodge Park............................ 7-20
7-6 Elkhead Dam and the Proposed Enlargement in Plan View.....,.............. Attachment
7-7 Cross Sectional View of Elkhead Dam and the Proposed Enlargement ............... 7-23
7-8 Stagecoach Dam and the Proposed Enlargement in Plan View................ Attachment
7-9 Cross Sectional View of Stagecoach Dam and the Proposed Enlargement ........... 7-28
7-10 Long-term Project Development Schedule .................................................. 7-34
7-11 Detailed Near-term Project Development Schedule ..,.................................... 7-35

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