Flood Zone
Indicative 3b
Flood Zone 3b
Flood Zone 3a
Flood Zone 2
RoFfSW 3.3%
AEP Extent
RoFfSW 1% AEP
Extent
RoFfSW 0.1%
AEP Extent
< 25%
>= 25% <50%
>= 50% <75%
>= 75%
Fluival 1% AEP
+ 35%
Fluival 1% AEP
+ 65%
Fluival 0.1% AEP
+ 25%
Areas Susceptible to
Groundwater Flooding
Emergency Planning
Authority Information
Source
Protection
Zone
present
Historic
Landfill
Sites
0 0.2 0.40.1
km
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Flood Defences
Historical Flood Outlines
LEVEL 2 COMMUNITY SUMMARY TABLES
KINGS LYNN LEVEL 2
STRATEGIC FLOOD RISK ASSESSMENT
LEGEND
Sources of Flooding
Flood Zones
Surface Water
Depth (m)
0 - 0.6
0.6 - 1
1 - 2
2 - 3
3 - 4
4 +
Velocity (m\s)
0 - 0.2
0.2 - 0.5
0.5 - 1.0
1.0 - 2.0
2.00 +
Hazard Rating
Very low
hazard -
caution
Danger for
some
Danger for
most
Danger for all
Community Name:
Southery
Residual Risk
(Breach)
Fluvial Climate Change
Surface Water Climate Change
Surface Water
1% AEP + 40%
Tidal Climate Change
Tidal 0.5% AEP
Tidal 0.1% AEP
Climate Change
Most likely cause of
flooding (3.3% AEP)
Community
Kings Lynn
Council
Boundary
Main Rivers
Detailed River
Network
IDB Drains
Highest risk of
flooding (0.1% AEP)
High
Medium
Low
Very Low
Flood Warning
Areas
Flood Alert
Areas
Recorded Flood
Outlines
Embankment
Flood Gate
Flood Walls
Areas Benefitting
from Flood Defences
Highest Flood Risk Source:
Fluvial
Most Likely Flood Risk Source:
Surface Water
Version: Final v3.0
Date Drawn: 22/03/19
0 - 0.6
0.6 - 1
1 - 2
2 - 3
3 - 4
4 +
Risk of flooding from
rivers and sea
Other
Breach Depth (m)
Highest
Risk of
Flooding **
Please note: for this community
the Highest Risk of flooding
is based on the Flood Zone 2.
Please see section 2.2 Sequential
Test Guidance in the
Borough Council of King's Lynn
& West Norfolk Level 2 Strategic
Flood Risk Assessment for more
details.