Flood Management Plan:

1. Situational Awareness2. Analytics3. Smart Response

Its all about Resilience:“The ability of a system

to mitigate and recover from shock or change.”

The art of bouncing back

Flood Management

1. Situational Awareness

Developing useful insight

The number of natural disasters seems to be increasing, as are the number of people affected.

(Note that the number of people actually killed by natural disasters has declined significantly over the period).

Achieving resilience is therefore a process, spanning multiple activities and time-scales

Long run risk prediction(eg climate change impact, earthquake risk)

Predicting demographic change (eg urbanization etc)

Land use decisions

Infrastructure hardening and duplication

Evacuation and property securing

Fore- casting (weather events)

Emergency planning and simulation

EVENT

Public awareness

Multi- decades

Decade Sub-Decade ->Years

Days -> hours

Impact tracking

First Response

Hours-> Days

Debris removal, restarting infrastructure

Survivor search

Emergency shelter, food, first aid, power etc

Rebuilding and long-run recovery

Short run economic “re-boot”

Years –>Sub-Decade

Weeks -> Months

Corporate risk assessment

Insurance portfolio management, contingency and capital market funds

Building code revisions

Months-> Weeks

(Monitoring of pandemics, famines, droughts)

Seasonal forecasting (weather patterns pandemics)

Event tracking and alerts

Loss adjustment, insurance payments

Pre-positioning supplies

Learn and Improve

Consumption patterns

Production methods

Hat tip to Peter Williams for the diagram

i. Surface water flooding. ii. Groundwater flooding iii. River flooding. iv. Coastal and tidal flooding v. Reservoir or dam failure. vi. Burst water mains. vii. Sewer flooding.

Where can a flood come from?

Rapid Heavy RainCatches you by surpriseIn Flood Zone 3, edge of Zone 2Unlikely !Unlikely, but on edge of zoneFreeze?, groundworks?Drain Outside?

What to plan for at Sheaf Street

Flood Zones:

Leeds flood risk documentshttp://www.leeds.gov.uk/council/Pages/Strategic-flood-risk-documents.aspx

Duke

http://maps.environment-agency.gov.uk/wiyby/wiybyController?x=430500.0&y=434500.0&topic=floodmap&ep=map&scale=9&location=Leeds,%20Leeds&lang=_e&layerGroups=default&distance=&textonly=off#x=430818&y=432230&lg=1,2,10,&scale=9

EA flood map (more simple map)

Duke

Flood Zone 2 – Medium Probability 0.1% - 1% chance

Definition

This zone comprises land assessed as having between a 1 in 100 and 1 in 1,000 annual probability of river flooding (1% – 0.1%), or between a 1 in 200 and 1 in 1,000 annual probability of sea flooding (0.5% – 0.1%) in any year.

Policy aims

In this zone, developers and local authorities should seek opportunities to reduce the overall level of flood risk in the area through the layout and form of the development, and the appropriate application of sustainable drainage systems

Flood Zone 3a – High Probability >1% chance

Definition

This zone comprises land assessed as having a 1 in 100 or greater annual probability of river flooding (>1%), or a 1 in 200 or greater annual probability of flooding from the sea (>0.5%) in any year.

Policy aims

In this zone, developers and local authorities should seek opportunities to:

reduce the overall level of flood risk in the area through the layout and form of the development and the appropriate application of sustainable drainage systems;relocate existing development to land in zones with a lower probability of flooding; andcreate space for flooding to occur by restoring functional floodplain and flood flow pathways and by identifying, allocating and safeguarding open space for flood storage.

http://watermaps.environment-agency.gov.uk/wiyby/wiyby.aspx?lang=_e&topic=reservoir&layer=0&x=430500&y=434500&scale=10&location=Leeds%2c+Leeds#x=430247&y=432798&scale=11

Duke

This is considered a low risk ( but map is useful)

City domains are interconnectedSo floods affect a lot of things!

Communi- cations and IT

Food storage and delivery

Healthcare

Ecosystem services

(Social systems)

Public safety

Transport- ation

Protectiveinfra- structure

Water, waste water

Energy,fuel

City “system of systems”

Note what is happening locally: 2016

http://www.leeds.gov.uk/residents/Pages/FloodAlleviationScheme.aspx

Flood alleviation movable weir

Resilience Scorecard• Based on UN ISDR’s “Ten Essentials” of disaster management.

I will s

ee if this

produceses

something useful

Where to get Live Flood Warningshttps://flood-warning-information.service.gov.uk/map

0345 988 1188This service sends you a direct message when flooding is expected and may affect your property. You can receive warnings by telephone, mobile, email, SMS text message or fax, whichever you prefer. You can also view flood warnings through the Environment Agency website:

http://apps.environment-agency.gov.uk/flood/31618.aspx Or via Twitter: follow @EnvAgency Or on Facebook: www.facebook.com/FloodAlerts (England and Wales)

http://www.metoffice.gov.uk/public/weather/warnings/#?tab=map&map=Warnings&zoom=5&lon=-3.50&lat=55.50&fcTime=1404082800

http://apps.environment-agency.gov.uk/river-and-sea-levels/120699.aspx

Action: Understand changing upstream water levels

Action: Understand changing upstream water levels

Another source of information

http://maps.environment-agency.gov.uk/wiyby/wiybyController?x=357683&y=355134&scale=1&layerGroups=default&ep=map&textonly=off&lang=_e&topic=riverlevels#x=420574&y=432485&lg=1,&scale=5

Location Link

Gargrave https://flood-warning-information.service.gov.uk/station/8083

Snaygill https://flood-warning-information.service.gov.uk/station/8189

Stockbridge https://flood-warning-information.service.gov.uk/station/8199

Bingley https://flood-warning-information.service.gov.uk/station/8345

Saltaire https://flood-warning-information.service.gov.uk/station/8346

Kirstall Abbey https://flood-warning-information.service.gov.uk/station/8120

Armley https://flood-warning-information.service.gov.uk/station/8009

Crown Point https://flood-warning-information.service.gov.uk/station/8061

Fleet Weir https://flood-warning-information.service.gov.uk/station/8079

TWITTER: river/aire/floodhttps://twitter.com/search?q=river%20aire%20flood&src=typd&lang=en

TWITTER # riveraireleedshttps://twitter.com/RiverAireLeeds?lang=en

GUAGEMAPhttp://www.gaugemap.co.uk/#!Detail/2005

https://fwd.environment-agency.gov.uk/app/olr/address?method=selectCustType&recipType=d37e26d5ac1370cd00a02a8dd266a9c3

Action: Register with Flood Warnings Direct

Weather Radar… early warning of approaching storm+ Get emails of rain in the upstream catchment

http://forecast.io/#/f/53.7907,-1.5380

http://darkskyapp.com/ Set up an alert to tell you when rain is happening at critical times

2. Analytics

Analytics: what does it mean to you?

• Significantly reduce financial losses, damage to property and business interruption;

• Help compliance with regulatory requirements (for example, Occupier’s Liability Act 1984);

• Reduce exposure to civil or criminal liability;

• Enhance your company’s image and credibility with employees, customers, suppliers and the community;

• Help fulfil your moral responsibility to protect employees, the community and the environment;

• Help you to obtain insurance cover.

WHY HAVE A FLOODRISK PLAN?

-1m from ground ( See Brewery Car Park)

0m above ground level

1m above ground level

Questions to be considered1. How are employees family affected?2. How do people communicate with you?3. Who is available to responde?4. Who are the decision makers & where are they5. What preventitive maintenance is needed (e.g. drain outside)6. What is the fuel supply? (do you have electicity generators?)7. What about your supply chain –up and downstream

8. Many more to be added here…

Important Dynamics of floods to think about

According to a report prepared for Defra in 2007, repairing a houseafter a flood was estimated to cost between £10,000 and £50,000depending on the flood depth. This will now have increased stillfurther, owing to inflation*.

What does it cost to fix?

3. Smart Response

Smart Response Specific actions: before, during and after an event

What can you do to:

• Lessen the impact of the event• Reduce risk of injury/loss of life• Protect critical resources• Shorten time to recovery

The Flood Plan should clearly list actions needed on receipt of aflood warning, such as how to set up any temporary flood protection devicesas well as giving a maintenance schedule to ensure correct operation ofdevices in the future.

The plan should take account of the possibility of flood protection devices failing or their design being exceeded.

What is the plan when a Flood Warning is issued?

Action: Create A Flood Review Document (this is it)Action: On site ‘Walk around’ Discussing the Risks & actionsAction: Create a Flood PlanAction: Install/Purchase any useful productsAction: Communicate the planAction: Test the plan

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/410606/LIT_5284.pdf

Action: Fill in this Flood Plan template

Action: Install appropriate Flood Products

http://thefloodcompany.co.uk/

https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=flood+protection+products+uk&tbm=shop

http://www.flood-products.co.uk/hydrosack-flood-protection-p-43288.html?gclid=CMmwnb7r0MkCFWsJwwodGaUDqg

Action: Create Some local social cohesion ahead of time

Invite Locals in the same situation:CouncilAECOM world experts are nearbyTetleyEtc…

Help them to help you

Leeds City Council

In the event of flooding, you can contact the council for advice on 0113 222 4407 (Monday to Friday, 9am to 5pm). In an emergency or outside of these hours, contact: 0113 376 0499.

How to report Flooding : http://www.leeds.gov.uk/docs/05%20Reporting%20flooding.pdf:

Sandbag policy – try to plan for yourself, however some stock are available to request

Contacts

Appendix

ArmleyIn past few days rate was going down about 0.5m in 24 hours

Crown Point

How long before the river drops

Looking at rate of earlier river level dropping at a few sites on the Aire after the rain stopped for a while.The rate is about 0.5m in 24hrs from 6:00pm to 6:00pm for ArmleyI would expect that the with record levels then the rate of reduction will be a quicker because runoff is quicker:

Saltaire

Crown Point going down at 0.5m in 12 hours, = 1m per hour

In Summary at Crown Point I would expectThe river level to Drop by 1m per 24 hours for the next day or two (with no rain Monday & Tuesday)

Then as levels are more normal I would expect the river levels to drop at 0.5m per 24 hours from around Wednesday if no rain.

However

More rain is predicted for Wednesday so it is likely to rise really quickly because the ground is saturated, the recent rate of rise has been 1m in 18 hours (it fills up quickly)