City of Seattle
Attachments
Outreach Event: Cascades Dam Tour
Outreach Event10222026
Project Documents
A - Options Analysis Study Report
Filename: Options_Analysis_Study_Report.PDF
Type: other
Created: 9/30/2026
B - Lake Youngs Perimeter Drains with Sections Highlighted
Filename: Lake_Youngs_Perimeter_Drains_with_Sections_Highlighted.pdf
Type: other
Created: 9/30/2026
C - FHWA_Highway Construction Noise Handbook_2006
Filename: FHWA_Highway_Construction_Noise_Handbook_2006.pdf
Type: other
Created: 10/20/2026
D - FHWA_Deep Mixing for Embankment and Foundation Support_2013
Filename: FHWA_Deep_Mixing_for_Embankment_and_Foundation_Support_2013.pdf
Type: other
Created: 10/20/2026
E - Final_DelineationReport_CascadeDam_020619
Filename: Final_DelineationReport_CascadeDam_020619.pdf
Type: other
Created: 10/20/2026
F - Lake Youngs-Regional Seismicity Review_1985
Filename: Lake_Youngs-Regional_Seismicity_Review_1985.pdf
Type: other
Created: 10/20/2026
G - Lake Youngs-Outlet Dam Seismic Slope Stability Evaluation_1981
Filename: Lake_Youngs-Outlet_Dam_Seismic_Slope_Stability_Evaluation_1981.pdf
Type: other
Created: 10/20/2026
H - Lake Youngs-Dike Reconnaissance Seismic Slope Stability_1980
Filename: Lake_Youngs-Dike_Reconnaissance_Seismic_Slope_Stability_1980.pdf
Type: other
Created: 10/20/2026
I - Lake Youngs-Basin Hydrogeology Technical Memo_1998
Filename: Lake_Youngs-Basin_Hydrogeology_Technical_Memo_1998.pdf
Type: other
Created: 10/20/2026
J - Lake Youngs-Perimeter Dike Liquefaction Potential Report_1985
Filename: Lake_Youngs-Perimeter_Dike_Liquefaction_Potential_Report_1985.pdf
Type: other
Created: 10/20/2026
K - Lake Youngs Bathymety Hydrographic Survey Report 2013
Filename: Lake_Youngs_Bathymety_Hydrographic_Survey_Report_2013.pdf
Type: other
Created: 10/20/2026