Proposed Barrier Across New Cut ( 4 .4 ) Approximate Position of Proposed Defence (5.71) 5 .71 5.71 5. 05 4. 75 -999 4.65 4.4 3. 01 3.88 3.64 0.89 4.73 4. 54 4 . 25 3.94 4.06 4.68 4.13 4 . 2 2 Reproduced by permission of Ordnance Survey on behalf of HMSO. © Crown copyright and database right 2011. Ordnance Survey Licence number 100021566 Flood Defence Crest Levels 4.8 to 5.1 4.5 to 4.8 4.4 to 4.5 4.2 to 4.4 4.1 to 4.2 3.9 to 4.1 3.6 to 3.9 3 to 3.6 -999 to 0.9 East and West Bank Defences Proposed Defence 5.71 4.4 Appendix 5.03 Tidal Defence - Crest Level SFRA Level 2 May 2011 Planning, Transport and Regeneration, Ipswich Borough Council