South Devon and Dorset Shoreline Management Plan Review
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South Devon and Dorset Coastal AAAdvisoryAdvisory Group (SDADCAG) Shoreline Management Plan Review (SMP2) Durlston Head to Rame Head Shoreline Management Plan ( inal) June 2011 Durlston Head to Rame Head SMP2 Shoreline Management Plan Page deliberately left blank for doubledouble----sidedsided printing Durlston Head to Rame Head SMP2 Shoreline Management Plan Contents Amendment Record This report has been issued and amended as follows: Issue Revision Description Date Approved by 1 0 Draft – for Public Consultation 1,-0,-200. H/ 2 0 Draft – working version for CSG 11-12-200. /R 0 0 Draft inal – re-issued to 12RG 13-08-2010 /R , 0 inal 05-01-2011 /R Halcrow Group 6imited Ash House, alcon Road, Sowton, E9eter, Devon E:2 36B Tel +,, (0)10.2 ,,,252 a9 +,, (0)10.2 ,,,001 www.halcrow.com Halcrow Group 6imited has prepared this report in accordance with the instructions of their client, South Devon and Dorset Coastal Advisory Group, for their sole and specific use. Any other persons who use any information contained herein do so at their own risk. ? Halcrow Group 6imited 2011 Durlston Head to Rame Head SMP2 Shoreline Management Plan Page deliberately left blank for doubledouble----sidedsided printing Durlston Head to Rame Head SMP2 Shoreline Management Plan Table of CCContentsContents 111 I1TRODACTIO1I1TRODACTIO1...................................................................................................................................................................................................................................................................................................................................................................................................................................................................1.....111 1.1 THE SHORE6I1E MA1AGEME1T P6A1 ....................................................................................................................... 1 1.2 STRACTARE O THE SMP ...........................................................................................................................................11 1.0 THE P6A1 DEBE6OPME1T PROCESS .........................................................................................................................10 222 STRATEGIC E1BIRO1ME1E1BIRO1ME1TA6TA6 ASSESSME1TASSESSME1T....................................................................................................................................................................................................................................................................................................151515 2.1 BACCGROA1D ............................................................................................................................................................15 2.2 SCREE1I1G A1D SCOPI1G ........................................................................................................................................15 2.0 ESTAB6ISH SEA OB/ECTIBES.......................................................................................................................................15 2., E1BIRO1ME1TA6 BASE6I1E.......................................................................................................................................18 2.5 ASSESSME1T METHODO6OGD....................................................................................................................................1. 2.5 CO1SA6TATIO1..........................................................................................................................................................20 2.3 REPORTI1G ..................................................................................................................................................................20 2.8 IMP6EME1TATIO1 A1D MO1ITORI1G.....................................................................................................................2, 000 BASIS OR DEBE6OPME1DEBE6OPME1TT O THE P6A1P6A1............................................................................................................................................................................................................................................................................................................................252525 0.1 HISTORICA6 PERSPECTIBE...........................................................................................................................................25 0.2 SASTAI1AB6E PO6ICD..................................................................................................................................................25 ,,, THE PRE ERRED P6A1P6A1...................................................................................................................................................................................................................................................................................................................................................................................................................... 020202 ,.1 P6A1 OR BA6A1CED SASTAI1ABI6ITD....................................................................................................................02 ,.2 PREDICTED IMP6ICATIO1S O THE PRE ERRED PO6ICIES .......................................................................................0. ,.0 MA1AGI1G THE CHA1GE .........................................................................................................................................,2 555 PO6ICD STATEME1TS ................................................................................... ..................................................................................................................................................................................................................................................................................................... ,,,,,, 5.1 I1TRODACTIO1 ..........................................................................................................................................................,, 5.2 CO1TE1T ....................................................................................................................................................................,, 555 ACTIO1 P6A1P6A1................................................................................................................................................................................................................................................................................................................................................................................................................................................ 505505505 5.1 I1TRODACTIO1 ........................................................................................................................................................505 RE ERE1CES G6OSSARD AAAPPE1DICESAPPE1DICESPPE1DICES:::: A ––– SMP DEBE6OPME1T B ––– STACEHO6DER E1GAGEME1T C ––– BASE6I1E PROCESS A1DERSTA1DI1G D ––– SEA E1BIRO1ME1TA6 BASE6I1E REPORT ((THEMTHEMTHEMEEEE REBIEEREBIEE)))) E ––– ISSUES A1D OB/ECTIBES EBA6AATIO1 ––– I1ITIA6 PO6ICD APPRAISA6 A1D SCE1ARIO DEBE6OPME1T G ––– PRE ERRED PO6ICD SCE1ARIO TESTI1G H ––– ECO1OMIC APPRAAPPRAIIIISA6SA6 A1D SE1SITIBITD TESTI1G I ––– STRATEGIC E1BIRO1ME1TA6 ASSESSME1T REPORT / ––– APPROPRIATE ASSESSME1T C ––– EATER RAMEEORC DIRECTIBE ASSESSME1T 666 ––– METADATA A1D BIB6IOGRAPHIC DATABASEDATABASESSSS M ––– ACTIO1 P6A1 SUMMARD TAB6ES Durlston Head to Rame Head SMP2 Shoreline Management Plan Page deliberately left blank for doubledouble----sidedsided pprintingrinting Durlston Head to Rame Head SMP2 Shoreline Management Plan 111 Introduction 1.11.11.1 The Shoreline Management Plan A Shoreline Management Plan (SMP) provides a large-scale assessment of the risks associated with coastal evolution. It includes a policy framework to address these risks in a sustainable manner with respect to people and the developed, historic and natural environment. In doing so, an SMP is a high-level document that forms an important part of the Department for Environment, ood and Rural Affairs (Defra) strategy for flood and coastal defence (Defra, 2001). The SMP provide the policy framework from which more detailed strategies and schemes are developed to identify the best way of implementing policy. igure 1.1 shows where SMP sits in terms of the overall conte9t of flood and coastal erosion risk management in the AC. igure 1.11.11.1 Stages in Implementing AC Coastal Management Policy and 6egislation (adapted from Atkins 200, and Defra 2001))) SHORE6I1E MA1AGEME1T P6A1S Identifies general, generic strategic policies (e.g. hold, retreat or advance the line) on a coastal cell or sub-cell scale for adoption by an operating authority. Also identifies constraints, data, knowledge and areas of uncertainty for further study. STRATEGIES Identifies preferred management option reFuired to implement policy determined by the SMP for a process unit or group of management units, including economic and environmental decisions, and type of scheme. SCHEMES Identifies the nature of the works reFuired to implement the preferred management option determined by strategy studies for a management unit or sub-unit by comparing different implementation options for the preferred scheme type. This document provides the first revision to both the original Portland Bill to Durlston Head SMP and Portland Bill to Rame Head (6yme Bay and South Devon) SMP, both of