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Figure 25 — Peak flow stage analysis at Pinewood Springs calibration section. <br />Figure 26 — Peak flow stage analysis at the X Bar 7 Ranch calibration section. <br />Figure 27 — Breach model outflow hydrographs at calibration sections for September 12, 2013 <br />Figure 28 — Photo of watershed damage near the Stagecoach Road crossing. <br />Figure 29 — Photo of watershed damage near the X Bar 7 Ranch calibration section. <br />Figure 30 — Plot of HEC -HMS model results for the entire duration of the storm. <br />Figure 31— SPAS generated aerial distribution of the May 1969 Big Elk Meadows storm. <br />Figure 32— Temporal distribution of rainfall for the May 1969 rainfall event. <br />Figure 33 — No Breach model correlation section hydrographs for the May 1969 storm. <br />Figure 34 — No Breach model basin outflow hydrographs for the May 1969 storm. <br />LIST OF TABLES <br />Table 1 - Spillway Sizing Criteria from the Colorado Rules and Regulations for Dam Safety <br />Table 2 — Physical Descriptions of Big Elk Meadows Dams and Reservoirs <br />Table 3 — Jurisdictional Height and Time of Failure of Big Elk Meadows Dams <br />Table 4 — Model Unit Hydrograph Parameters <br />Table 5 — Model Subbasin Loss Parameters <br />Table 6 — Model Channel Routing Parameters <br />Table 7 — Model Overtopping Breach Parameters <br />Table 8 — Indirect Flow Estimates at Calibration Cross Sections <br />Table 9 — Comparison of Indirect Flow Estimates and No Breach Model Flow Estimates <br />Table 10 — Contributing Basin No- Breach Model Peak Discharge Estimates and Times <br />Table 11— Dam Failure model Results <br />Table 12 — Model Peak overtopping Results Compared to Surveys <br />Table 13 — Rainfall Depths and Rainfall and Runoff Volumes <br />Table 14 — Summary of Water Surface Elevation Change Analysis <br />Table 15 —Summary of Peak Discharges on the Little Thompson River <br />APPENDICES <br />Appendix A— <br />Elevation -Area, Elevation- Capacity, and Spillway Rating Curves <br />Appendix B <br />—Survey Data and Flow Calibration Point Information <br />Appendix C <br />—AWA graphical and tabular Data (Revised, December 2014) <br />Appendix D <br />— Unit Hydrographs, Basin Loss Rates <br />Appendix E <br />— Limiting horizon soil loss analysis <br />Appendix F— <br />Summary and inventory of interviews, photos, videos, etc. <br />Report of the September 2013 Little Thompson River Flooding COLORADO <br />and Big Elk Meadows Dam Failures, June 2014 (Revised, Dec 2014) Division of Water Resources A&V <br />DAM SAFETY BRANCH <br />