FLOOD00308

• County: Larimer
• Community: Fort Collins
• Title: Feasibilty Study for the Dry Creek Basin Flood Control Project
• Date: 9/1/2001
• Prepared For: Larimer County
• Prepared By: ECI a Division of DMJM+Harris
• Contract/PO #: FS0044FX
• Floodplain - Doc Type: Floodplain Report/Masterplan

e Appendix F - Cost Estimates
Appendix G - Public Participation
Appendix H - Financial and Economic Analysis

LIST OF TABLES

Table ES1: Alternative Comparison .................................................................. 9
Table 1: Watershed Summary .........................................................................14
Table 2: Off-stream Detention Storage Details .............................................. 21
Table 3: Comparison of Estimated Costs for Options A through D............. 25
Table 5: Summary of Funding Alternatives.................................................... 34

e

Figure ES1
Figure ES2

LIST OF FIGURES

Dry Creek Basin
Delivery Pipeline to Terry Lake Feeder Canal

Figure ES-A1 Option A Flood Control Features in Middle Dry Creek Basin
Figure ES-B1 Option B Flood Control Features in Middle Dry Creek Basin
Figure ES-C1 Option C Flood Control Features in Middle Dry Creek Basin
Figure ES-D1 Option D Flood Control Features in Middle Dry Creek Basin

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
. Figure 7
Figure 8

Dry Creek Basin
Lower Dry Creek Basin
Existing Hydrograph at Larimer and Weld Canal
Willox Lane, 5000 cfs Diversion

Profile of East Vine Diversion

General Plan of All Existing and Potential Flood Control
Features in Middle Dry Creek Basin

Douglass Dam Spillway Enhancement Regulating Weir -
Plan, Profile, and Section

Larimer County Canal Overflow Spillway

3