1996 High Water Flood

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City of Portland Official High Water Flood After Action Report (AAR)

Flood Response Activity Log

Tuesday February 6, 1996

Incident Objectives

Safety of Public & Responders

Provide for Public sand Bagging/by supplying Bags/Know how/Sand

Close transportation routes that are in critical areas

Liaison with utilities and other providers

Protect life, property and environment

Weather report for 6th 7th & 8th wet & blustery; temperature 61 high & 41 low

2.35+ inches of rain - expect street flooding

Major Events

10:27 EOC Activated

Phone Bank opened

Areas of Concern

Johnson Creek @ 11 ih flooding; Willamette River, Drainage District @ 10.5;

Wednesday, February 7, 1996

Weather Update

Heavy rain continues. Storm total rainfall has reached 8 inches at Eugen . .4 to 5 inches

over much of the valley ... and from 8 to 15 inches in the Coast range.

Willamette River at Morrison Bridge

steady rise to 23 feet by midnight

Columbia River at Vancouver

rise to 22 feet by 6am Thursday

Areas of Concern

Water level at SE 115th and Harold

Notified residents to leave the area

Triage patients at Holgate Care Center

Arranged for busses.for transport, Red Cross for shelter, Oregon National Guard cargo

trucks, Helicopter for possible rescue, Multnomah County for sled boat and sheriff

boats

Thursday February 8, 1996

Weather Update

Rain this evening ...locally heavy ...turning to showers, lows to mid 40s

Willamette - 28.8 feet

Action Taken

Mayor calls for carpenters to bring their tools and volunteer to come either side of the

Willamette under the Burnside Bridge to reinforce river walls

Willamette Seawall provided 430 concrete barriers, 400 sheets of plywood and 1200Lft

2x6

Areas of Concern

Actual evacuation of Johnson Creek area

Fear of breakaway houseboats on Columbia & Willamette

Sauvie Island flooding

Sandbag locations established at 12 places around city

Red Cross identifies five shelters

Columbia River dikes

Friday February 9, 1996

Weather Update

temperature 40 degrees; rain

Willamette at 27.5;

Action taken

A houseboat and yacht which broke loose up river from the Sellwood was boarded and

found empty.

Water supply was determined to be stable so no boil water notice was issued.

Fred Cuthbertson was designated as the City representative for cost recovery process

by OEM.

Clean up Plan begun between Metro & BES

Flood warning for Johnson Creek Canceled

Road closures -HWY 26, HWY30;Barbur Blvd., Macadam Ave., Front Ave., Burnside

Bridge and Street, Sam Jackson Parkway, OHSU, Hawthorne Bridge, Marine Drive,

Foster Road, 1-84 Eastbound

Hayden Island declared an emergency area

Levee Inspection schedule developed around the clock

Saturday February 10, 1996

Weather Update

Mostly sunny, few high clouds, Highs 50-55

NE wind 10 to 20 mph

Concerns

Regional recovery plan needs fo begin

Regional Recycling plan needed

Traffic Management plan needed

Actions Taken

Arrangements made for arrival for FEMA director, James Lee Witt

33rd & Columbia - dike OK, but 24 hour monitoring continues

Damage assessment Teams are put in place from each bureau to assess City property

Medical Plan amended for contact with contaminated water

New staffing pattern for EOC developed

Sunday, February 11, 1996

Concerns

Monitor water levels in "Ramona Lake" - (Holgate btw 120th & 136th)

Concern of the stability of levees along Marine Drive will continue until river drops to

22.5 ft

Worker Safety paramount concern due to fatigue

Action Taken

Plan development

Monday February 12, 1996

River Status

Willamette at Portland - 23. 9 ft.

Columbia River 23.2 ft.

Areas of Concern

Willamette River sea wall removal after President Clinton's visit

Donation plan

Actions Taken

HazMat Plan developed

Hayden Island reopened for public access

Citizens requested to avoid the hilly areas of Portland due to landslides

115 roads closed within Portland jurisdiction

Mandatory water restriction in effect for all outdoor uses and voluntary reduction of all

indoor water use. Metropolitan region is served by the City's back up wells which have

limited capacity to produce water.

Tuesday, February 13, 1996

Weather Update

high 63-67 low 35-39

River Levels

Willamette 21.0

Columbia 19.6

Areas of Concern

Regional recovery efforts

Hazardous waste collection and disposal

removal of sea wall

traffic plan

Actions Taken

Bureaus are communicating their individual plans to EOG, including BES activities

downtown, deployment of crews from the Water Bureau to the dikes, activity on

landslide removal with Maintenance Crews and flood recovery activities by Parks

Bureau;

Incident radio communications report increased to include 12 talk groups

Salvation Army offers to handle donations of food and clothing

Bureau of Buildings develop a plan for assessment teams which is systematic for

gathering early estimates·

Haz Mat team instructs public on waste sites and handling procedures

Flood Debris Sites are established

The following bureaus allocated resources to flood damage recovery today: Auditors

Office, Bureau of Buildings, Commissioners. Offices, Bureaus of Emergency

Communications, Environmental Services, Risk Management, Fire, General Services,

Maintenance, Parks and Recreation, Planning, Police, Purchases, Transportation

Engineering, Traffic Management and Water, Mayors Office and the Office of

Transportation.

Development of a Volunteer Coordination Plan

Wednesday, February 14, 1996

President Clinton Arrives in Portland

River Levels

Willamete 19.2

Columbia ~9.0

Areas of Concern

Marine Drive, Seawall removal, Ramona Lake, traffic due to closures, hazardous

materials collection;

Actions Taken

29 slides listed

Water restriction released

Thursday February 15, 1996

Weather Update

Extended forecast for a month showing little precipitation and high of 61 and low of 25

during the period

River Levels

Willamette at Portland 16.8

Columbia at Vancouver 16.6

Actions Taken

143 Slides listed

Landslide group formed to assess citizen/city interaction regarding slides

Parks estimate damage and clean up cost totaling $2,815,790.

BES damage assessment preliminary $80,000

Columbia Wastewater Treatment Plan $50,000