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Business Item
Slaughden Shoreline Management Plan Review
Is a Key Decision:
Decision Type:
Decision Maker:
Date of Decision
Tue 6 Oct 2020
Show on Forward Plan
Report of the Cabinet Member with responsibility for Planning and Coastal Managememt
Matter for Decision (to consider...)
That the Shoreline Management Plan Policy Unit ORF15.1 – Sudbourne Beach be changed to Managed Realignment in all 3 epochs.
Service Area
Planning & Coastal Management
Service Area 2
Not Applicable
Contact for Background Papers:

Sharon Bleese

Coastal Manager (South)

07990 793662 

Background Papers:
Environment Agency (2013) Strategic planning for flood and coastal risk management: Shoreline management plans - monitoring, change and reporting. Operational instruction D12_34.
Is Decision District Wide
Decision Made

1. That SMP Policy Unit ORF15.1 – Sudbourne Beach be changed to Managed Realignment in all 3 epochs


2. That the text in the SMP Policy Unit ORF15.1 be revised to:- 



Policy Plan






Existing policy

Hold the Line

No Active Intervention

No Active Intervention

An interim policy pending an agreed Management and Investment Plan for the Alde and Ore area.

Revised policy

Managed realignment

Managed realignment

Managed realignment

Measures to maintain barrier resilience and minimise the risk of a permanent breach forming, whilst working with the dynamic coastline and ensuring continued sediment connectivity.

Reason for Decision

1. There was no formal policy identified in the SMP, instead an interim policy of No Active Intervention was defined. Since the SMP the shingle barrier has narrowed further and there is a high risk of it becoming breached. A formation of a permanent breach would have significant impacts on the Alde-Ore Estuary, which are very uncertain at present. This outcome would also be contrary to the objectives of the Alde and Ore Estuary Plan, which was endorsed by the Local Authorities after the SMP was adopted.


2. A revised policy of Managed Realignment will enable the council, working together with the Environment Agency, to provide resilience against erosion whilst working with a dynamic coast, through maintaining the shingle ridge to minimise the risk of a permanent breach. This does not, however, commit the local council to additional financial expenditure, but does allow a more flexible approach to the situation than the current interim policy of no active intervention, which infers no further investment or management works. 


3. Any future works will, however, still need to appraise the potential loss or damage to internationally designated habitats within the site. 


4. There was a consensus between those agencies that manage the coast in Suffolk, as well as significant support from the local community, for the proposed change to this SMP policy.

Alternative Options Considered and Rejected

1. No change from the current SMP policy (No Active Intervention). This policy would mean there would no further management of this frontage in the future. As the shingle ridge is already narrow, there is a risk that this would result in a permanent opening forming, linking the open sea and the estuary. There could be a significant and uncertain effect on the wider estuary and the natural and human environment it supports. This would also not align with the vision of the Alde and Ore Estuary Plan.


2. Hold the Line policy. This was considered but it was discounted due to: technical challenges to delivering this option and long-term sustainability issues, the potential impact on coastal processes, significant negative impacts on the natural environment, substantial costs both now and continuing in the future.

Any Declarations of Interest Declared
Any Dispensation Granted

Decision Criteria

This Decision does not contain any decision criteria records.


Aldeburgh and Leiston


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Overview and Scrutiny

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Decision History

Date & Time CreatedUser Full NameStatus DescriptionDetails
 Page 1 of 2, items 1 to 10 of 13.
22/09/2020 13:44:14Matt MakinBusiness Item Created 
22/09/2020 13:44:14Matt MakinCommittee AddedCabinet
22/09/2020 13:44:14Matt MakinMeeting Added06/10/2020 6:30PM
22/09/2020 13:56:58Matt MakinWard AddedAldeburgh and Leiston
22/09/2020 13:57:17 General Details EditedReference Number Generated (ES/0512)
22/09/2020 13:57:17Matt MakinStatus ChangedDecision Scheduled [1]
24/09/2020 16:39:42Matt MakinReport AddedDocument ID 7125: ES-0512 - Slaughden Shoreline Management Plan Policy Review
07/10/2020 11:18:55Matt MakinGeneral Details Edited 
08/10/2020 09:27:58Karen CookStatus ChangedDecision Subject To Call In [3]
08/10/2020 09:29:55Karen CookGeneral Details Edited 


No history found.