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Flood Disaster Preparedness

Green River Valley - Howard Hanson Dam

 

Seminar Program Download

 

Real Time Flow Data  

 

Current Auburn Gage Data

Reservoir Elevation behind HHD

Additional Flood Warning Information

 

 

Flood Map Downloads

The maps linked below are large files 125mb

and may take a few minutes to load.

 

      - These maps are possible flooding depiction at different flow rates. 

      - The maps are not evacuation maps nor are they a prediction of what will

          happen, but a generalization of what might or might not happen should    

         these flow rates be realized.

      - Conditions change and flood water cannot be predicted.

 

Simulated Water Depth for a Peak flow at Auburn Gage of...

13,900 cfs

Download
17,600 cfs Download
19,500 cfs Download
25,000 cfs & Levee Failure at 180th St. Download
25,000 cfs Download

 

The maps contained within these downloads can be zoomed in on to

focus on a particular area in detail. Use the snapshot tool in Acrobat

to copy a section of the map for printing. Please note: These are

large files and take a few minutes each to download and fully display. 

 

 

Below are some flow rates for perspective to help give you some context: The levee system was designed to hold approx. 12,000 cubic ft/sec of flow.

 

Recent High Flow Data: Green River at Auburn

 

January 9, 2009 11,100 c.f.s.
November 7, 2006

12,200 c.f.s.

November, 1999  9,200 c.f.s.
December, 1998  9,580 c.f.s.
February, 1996 12,400 c.f.s.
November, 1995 11,200 c.f.s.
November, 1990  11,500 c.f.s.

      

Flood Phase Information - Flow at Green River gage at Auburn

 

5,000 c.f.s. Internal Alert
7,000 c.f.s. Minor Flooding - Lowland flooding in valley upstream of Auburn.
9,000 c.f.s.    Moderate Flooding - Flooding of varied depths occurs in valley upstream of Auburn & lower Mill Creek basin. SE Green Valley Rd & West Valley Rd may overtop.
12,000 c.f.s. Extreme Flooding - Levees may exhibit seepage and/or weaken from saturation.

    

Other Maps

Auburn Flood Map Download
Renton Flood Map 1 Download
Renton Flood Map 2 Download
Tukwila Flood Map Download
Tukwila Evacuation Routes

Download

 

 

Speaker Presentations

 

Tom Sante, BOMA Chairman, GVA Kidder Mathews

Suzette Cooke, Kent Mayor

Welcome to Kent and ShoWare

 

 

Opening PowerPoint

John Wanamaker, GVA Kidder Mathews

Overview, Real Estate & Commerce Perspective

 

 

Wanamaker Presentation

Olton Swanson, Army Corps of Engineers

Howard Hanson Dam, repairs & water retention

capacity changes

 

 

Swanson Presentation

Robin Friedman, King County Emergency Mgmt 

Regional Planning, EOC Operations, Transportation

 

 

Friedman Presentation

Tom Bean, King County Water & Land Resources

Levee System, Warning Center, Notification

 

 

Bean Presentation

John Campion, Puget Sound Energy

Power & gas infrastructure, recovery expectations

Recharging and restoring power safely & inspections

 

 

Campion Presentation

Wendy Freitag, WA St. Dept. of Emergency Mgmt

Communications back-up PIER system, WA EOC

 

 

Freitag Presentation

Susan Stead, Parker Smith & Feek

Insurance, FEMA. Private, know our policy

 

 

Stead Presentation

Casey Jorgensen, Esq., Williams Kastner

Landlord - tenant lease and legal issues

 

 

Jorgensen Presentation

Mark Jackson, CB Richard Ellis

Real estate preparedness, reaction and recovery

 

Jackson Presentation

.ppt version (read-only)

Molly Lawrence, Esq., GordonDerr, LLP

Long Term Impacts: How Levee Certification Affects Real Estate Values and Development Options

 

 

Lawrence Presentation

 

 

Additional Resource Downloads (pdf)

Key Website Links from the State Emergency Management Division
King County Flood Pamphlet
King County Howard Hansen Dam Briefing (July)
King County Howard Hansen Dam Briefing (August)
WA State Dept of Ecology Preparation & Response Plan
NIF Insurance Myths & Facts
TAB Flood Loss Prevention
Howard Hanson Dam Emergency Op Planning Action Items
HHD Reduced Storage Capacity FAQ (Army Corps of Engineers)
HHD Pool Restriction Fact Sheet
Emergency Contact List Template
Flood Notice Draft Template
HHD Tenant Contact Form Template
Food & Water in an Emergency
Disaster Guidelines for Electrical Inspections
Flood Damaged Mobile Homes
Landlord Casualty Restoration Matrix Template
Recovering Boiler Systems After A Flood
Inspection Contact List
Flood Preparedness Manpower & Materials **NEW**
Explanation of Elevation Certificate **NEW**

 

If you don't see a resource you are looking for, please email us.