COR Applicants Response to Flood Management

From: Balmer, Chris To: DEFA, Planning Subject: FW: Gladstone Park Ramsey PA 20-01510-A Date: 14 April 2021 07:46:07 Attachments: 2001510A CON Consultation 2 DOI Flood Risk Mgmt.pdf Gladstone park Coastal Flood extents.pdf Gladstone park Flood Surface water flood extents.pdf Gladstone park Fluvial Flood extents.pdf

From: Mark Pearce <[email protected]> Sent: 14 April 2021 07:24 To: Toher, Gemma <[email protected]>; Rodger, Gemma

Cc: Cowin, Malcolm ; Balmer, Chris Subject: RE: Gladstone Park Ramsey PA 20-01510-A

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Hi Gemma

I have looked at the more detailed maps and the site is not indicated as flooding on the coastal flood extents map.

There is some minor flooding indicated on the surface water flood extents map which we dealt with on the previous planning submissions, hence why we were given permission at that time.

I would be grateful if you could amend your comments on this application to indicate a flood study would be required in respect of surface water flooding as part of any detailed scheme assuming this outline scheme is given approval.

The surface water flood study would indicate mitigation for the minor surface water flooding that may affect part of the site. It is not shown across the whole site and the areas that are shown would be open space in any case. The worst case scenario would be the addition of attenuation to allow for this surface water. If you wish to discuss this in more detail please do not hesitate to contact me.

Kind regards Mark

Mark Pearce BA(hons) DIP Arch RIBA Director

Ellis Brown Architects Queens Promenade 12 Strathallan Crescent</[email protected]></[email protected]></[email protected]></[email protected]></[email protected]>

Douglas Isle Of Man IM2 4NR

Tel: +44 1624 621375

www.ellisbrown.im

Representation from Department of Infrastructure (DOI) Flood Risk Management Division

DEFER	Flood Risk Management's input has been deferred pending further information
DNO	Do not oppose
DNOC	Do not oppose subject to condition(s)
NFRMI	No Flood Risk Management interest
O	Oppose

Code Definition {{table:49887}}

Please note that the content of this memo has been completed by Officers from DOI Flood Risk Management in relation to the detailed planning application for the benefit of Officers of DEFA P&BC

The National Strategy on Sea Defences, Flooding and Coastal Erosion

1% AEP (100-year Return Period) Predicted Surface Water Flood Extent	Flood and Coastal Erosion Predicted Risk Hotspot
1% AEP (100-year Return Period) Predicted Fluvial Flood Extent	Environmental Designations
1% AEP (100-year Return Period) + Climate Change Predicted Fluvial Flood Extent	Railways
0.5% AEP (200-year Return Period) Predicted Coastal Still Water Flood Extent	A Roads
0.5% AEP (200-year Return Period) + Climate Change Predicted Coastal Still Water Flood Extent	B Roads
100-year Predicted Erosion Contour	Serviced Roads Isle of Man TT Race Course

Flood and Coastal Erosion Predicted Risk Hotspot Map

Summary and instructions:

• This map provides an overview of the predicted flood and coastal erosion risk within each hotspot across the Isle of Man. Predicted risk has been calculated from fluvial, surface water and coastal still water predicted flood risk as well as coastal erosion predicted risk.
• Use the drop-down menus below to select the required predicted flood or coastal erosion risk datasets and layers to display.
• Users are recommended to read the accompanying guidance for further information.
• It is important to note that the Isle of Man National Strategy on Sea Defences, Flooding and Coastal Erosion is intended as a national scale assessment. The predicted flood and coastal erosion risk analysis has been targeted at the national scale and is therefore not suitable for assessing risk at the individual property scale. Users who are concerned about local flood and coastal erosion risk are recommended to contact their local management authority for further information.

None

Predicted Coastal Still Water Flood Extents

Legend

JRA Consulting

The National Strategy on Sea Defences, Flooding and Coastal Erosion

1% AEP (100-year Return Period) Predicted Surface Water Flood Extent	Flood and Coastal Erosion Predicted Risk Hotspot
1% AEP (100-year Return Period) Predicted Fluvial Flood Extent	Environmental Designations
1% AEP (100-year Return Period) + Climate Change Predicted Fluvial Flood Extent	Railways
0.5% AEP (200-year Return Period) Predicted Coastal Still Water Flood Extent	A Roads
0.5% AEP (200-year Return Period) + Climate Change Predicted Coastal Still Water Flood Extent	B Roads
100-year Predicted Erosion Contour	Serviced Roads
	Isle of Man TT Race Course

Flood and Coastal Erosion Predicted Risk Hotspot Map

Summary and Instructions:

• This map provides an overview of the predicted flood and coastal erosion risk within each hotspot across the Isle of Man. Predicted risk has been calculated from fluvial, surface water and coastal still water predicted flood risk as well as coastal erosion predicted risk.
• Use the drop-down menus below to select the required predicted flood or coastal erosion risk datasets and layers to display.
• Users are recommended to read the accompanying guidance for further information.
• It is important to note that the Isle of Man National Strategy on Sea Defences, Flooding and Coastal Erosion is intended as a national scale assessment. The predicted flood and coastal erosion risk analysis has been targeted at the national scale and is therefore not suitable for assessing risk at the individual property scale. Users who are concerned about local flood and coastal erosion risk are recommended to contact their local management authority for further information.

None

Predicted Surface Water Flood Extent

Legend

The National Strategy on Sea Defences, Flooding and Coastal Erosion

1% AEP (100-year Return Period) Predicted Surface Water Flood Extent	Flood and Coastal Erosion Predicted Risk Hotspot
1% AEP (100-year Return Period) Predicted Fluvial Flood Extent	Environmental Designations
1% AEP (100-year Return Period) + Climate Change Predicted Fluvial Flood Extent	Railways
0.5% AEP (200-year Return Period) Predicted Coastal Still Water Flood Extent	A Roads
0.5% AEP (200-year Return Period) + Climate Change Predicted Coastal Still Water Flood Extent	B Roads
100-year Predicted Erosion Contour	Sewiced Roads Isle of Man TT Race Course

Flood and Coastal Erosion Predicted Risk Hotspot Map

Summary and Instructions:

• This map provides an overview of the predicted flood and coastal erosion risk within each hotspot across the Isle of Man. Predicted risk has been calculated from fluvial, surface water and coastal still water predicted flood risk as well as coastal erosion predicted risk.
• Use the drop-down menus below to select the required predicted flood or coastal erosion risk datasets and layers to display.
• Users are recommended to read the accompanying guidance for further information.
• It is important to note that the Isle of Man National Strategy on Sea Defences, Flooding and Coastal Erosion is intended as a national scale assessment. The predicted flood and coastal erosion risk analysis has been targeted at the national scale and is therefore not suitable for assessing risk at the individual property scale. Users who are concerned about local flood and coastal erosion risk are recommended to contact their local management authority for further information.

None

Predicted Fluvial Flood Extents

Legend

JRA Innovation