Stream flow assessment /

The objective of this analysis is to quantify the relative change in river stage at two locations in the lower Susitna River segment between the pre-Project hydrologic condition and the maximum load following OS-1 hydrologic condition. The results of the analysis provide a preliminary assessment of...

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Bibliographic Details
Alternate Title:Copy for the March 01, 2013 filing (SuWa 13) has cover title: Attachment G, Stream flow assessment (February 2013)
Corporate Contributor(s):Tetra Tech, Inc.

Susitna-Watana Hydroelectric Project.

Alaska Energy Authority.
Publisher:[Alaska Energy Authority],
Report Numbers:SuWa 13

SuWa 42

SuWa 43
Series:Susitna-Watana Hydroelectric Project document ; no. 13.
Susitna-Watana Hydroelectric Project document ; no. 42-43.
Subjects:
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Contents:
  • Summary
  • Introduction
  • Study objectives
  • Study area
  • Assessment of pre-project and maximum load following OS-1 stream flows
  • Stage-exceedence analysis
  • Specific gage analysis
  • Discharge effects on ice elevation and cross-sectional flow characteristics
  • Tables
  • Figures
  • appendix A. Average monthly flow by water year for pre-project conditions
  • appendix B. Flow duration curves for pre-project conditions
  • appendix C. Flow exceedence summary data for pre-project conditions
  • appendix D. Flood frequency regression plots
  • appendix E. Flood frequency curves for pre-project conditions
  • appendix F. Average monthly flow (cfs) by water year for post-project conditions
  • appendix G. Monthly flow duration curves for post-project conditions
  • appendix H. Monthly flow duration comparison for pre-project and post-project conditions
  • appendix I. Monthly flow exceedence comparison (cfs) for pre-project and post-project conditions
  • appendix J. Annual and monthly stage-exceedence curves (pre-project and maximum load following OS-1 conditions) for Sunshine gage location and Susitna Station gage location
  • appendix K. Plots of select water-surface elevation exceedence values (pre-project and maximum load following OS-1 conditions) for Sunshine gage and Susitna Station gage cross section.