high_water_polyline.shp Derived from Ordnance Survey OpenData BoundaryLine data. Contains Ordnance Survey data © Crown copyright and database right 2026 2026 http://www.ordnancesurvey.co.uk/docs/licences/os-opendata-licence.pdf Isle_Of_Wight 102 0071 High Water Mark (HWM) ISLE_OF_WIGHT 102 161755 Isle_Of_Wight 628 0071 High Water Mark (HWM) ISLE_OF_WIGHT 628 172225 Isle_Of_Wight 1589 0071 High Water Mark (HWM) ISLE_OF_WIGHT 1589 183826 Isle_Of_Wight 1783 0071 High Water Mark (HWM) ISLE_OF_WIGHT 1783 183638 Isle_Of_Wight 2405 0071 High Water Mark (HWM) ISLE_OF_WIGHT 2405 163510 Isle_Of_Wight 3047 0071 High Water Mark (HWM) ISLE_OF_WIGHT 3047 184227 Isle_Of_Wight 3340 0071 High Water Mark (HWM) ISLE_OF_WIGHT 3340 80787 Isle_Of_Wight 3739 0071 High Water Mark (HWM) ISLE_OF_WIGHT 3739 183018 Isle_Of_Wight 3860 0071 High Water Mark (HWM) ISLE_OF_WIGHT 3860 170998 Isle_Of_Wight 5532 0071 High Water Mark (HWM) ISLE_OF_WIGHT 5532 163500 Isle_Of_Wight 5969 0071 High Water Mark (HWM) ISLE_OF_WIGHT 5969 161754 Isle_Of_Wight 6273 0071 High Water Mark (HWM) ISLE_OF_WIGHT 6273 80603 Isle_Of_Wight 6518 0071 High Water Mark (HWM) ISLE_OF_WIGHT 6518 183901 Isle_Of_Wight 7092 0071 High Water Mark (HWM) ISLE_OF_WIGHT 7092 172226 Isle_Of_Wight 7909 0071 High Water Mark (HWM) ISLE_OF_WIGHT 7909 172224 Isle_Of_Wight 8906 0071 High Water Mark (HWM) ISLE_OF_WIGHT 8906 183439 Isle_Of_Wight 9009 0071 High Water Mark (HWM) ISLE_OF_WIGHT 9009 80667 Isle_Of_Wight 9376 0071 High Water Mark (HWM) ISLE_OF_WIGHT 9376 183434 Isle_Of_Wight 9715 0071 High Water Mark (HWM) ISLE_OF_WIGHT 9715 80623 Isle_Of_Wight 10233 0071 High Water Mark (HWM) ISLE_OF_WIGHT 10233 80664 Isle_Of_Wight 10869 0071 High Water Mark (HWM) ISLE_OF_WIGHT 10869 80803 Isle_Of_Wight 11009 0071 High Water Mark (HWM) ISLE_OF_WIGHT 11009 171003 Isle_Of_Wight 11887 0071 High Water Mark (HWM) ISLE_OF_WIGHT 11887 183987 Isle_Of_Wight 13344 0071 High Water Mark (HWM) ISLE_OF_WIGHT 13344 80594 Isle_Of_Wight 13538 0071 High Water Mark (HWM) ISLE_OF_WIGHT 13538 173161 Isle_Of_Wight 13944 0071 High Water Mark (HWM) ISLE_OF_WIGHT 13944 80662 Isle_Of_Wight 14683 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14683 175261 Isle_Of_Wight 14685 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14685 184158 Isle_Of_Wight 14687 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14687 183119 Isle_Of_Wight 14689 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14689 175265 Isle_Of_Wight 14691 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14691 182873 Isle_Of_Wight 14693 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14693 184048 Isle_Of_Wight 14695 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14695 183005 Isle_Of_Wight 14697 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14697 183976 Isle_Of_Wight 14699 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14699 183633 Isle_Of_Wight 14701 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14701 183999 Isle_Of_Wight 14703 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14703 184137 Isle_Of_Wight 14705 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14705 183706 Isle_Of_Wight 14707 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14707 183271 Isle_Of_Wight 14709 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14709 175316 Isle_Of_Wight 14711 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14711 175317 Isle_Of_Wight 14713 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14713 175318 Isle_Of_Wight 14715 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14715 183703 Isle_Of_Wight 14717 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14717 184314 Isle_Of_Wight 14719 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14719 175322 Isle_Of_Wight 14721 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14721 175323 Isle_Of_Wight 14723 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14723 175324 Isle_Of_Wight 14725 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14725 175338 Isle_Of_Wight 14727 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14727 175339 Isle_Of_Wight 14729 0071 High Water Mark (HWM) ISLE_OF_WIGHT 14729 175340 Isle_Of_Wight 15196 0071 High Water Mark (HWM) ISLE_OF_WIGHT 15196 80841 Isle_Of_Wight 15359 0071 High Water Mark (HWM) ISLE_OF_WIGHT 15359 183548 Isle_Of_Wight 15868 0071 High Water Mark (HWM) ISLE_OF_WIGHT 15868 171168 Isle_Of_Wight 15923 0071 High Water Mark (HWM) ISLE_OF_WIGHT 15923 171169 Isle_Of_Wight 16993 0071 High Water Mark (HWM) ISLE_OF_WIGHT 16993 149572 Isle_Of_Wight 17251 0071 High Water Mark (HWM) ISLE_OF_WIGHT 17251 173194 Isle_Of_Wight 17869 0071 High Water Mark (HWM) ISLE_OF_WIGHT 17869 184189 Isle_Of_Wight 18108 0071 High Water Mark (HWM) ISLE_OF_WIGHT 18108 183833 Isle_Of_Wight 18346 0071 High Water Mark (HWM) ISLE_OF_WIGHT 18346 80597 Isle_Of_Wight 19048 0071 High Water Mark (HWM) ISLE_OF_WIGHT 19048 175341 Isle_Of_Wight 19050 0071 High Water Mark (HWM) ISLE_OF_WIGHT 19050 175342 Isle_Of_Wight 19052 0071 High Water Mark (HWM) ISLE_OF_WIGHT 19052 175343 Isle_Of_Wight 19054 0071 High Water Mark (HWM) ISLE_OF_WIGHT 19054 175345 Isle_Of_Wight 20119 0071 High Water Mark (HWM) ISLE_OF_WIGHT 20119 184165 Isle_Of_Wight 20142 0071 High Water Mark (HWM) ISLE_OF_WIGHT 20142 80829 Isle_Of_Wight 21340 0071 High Water Mark (HWM) ISLE_OF_WIGHT 21340 183095 Isle_Of_Wight 21399 0071 High Water Mark (HWM) ISLE_OF_WIGHT 21399 175256 Isle_Of_Wight 26405 0071 High Water Mark (HWM) ISLE_OF_WIGHT 26405 181461 Isle_Of_Wight 26407 0071 High Water Mark (HWM) ISLE_OF_WIGHT 26407 181462 Isle_Of_Wight 31446 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31446 183398 Isle_Of_Wight 31448 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31448 182690 Isle_Of_Wight 31450 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31450 184230 Isle_Of_Wight 31452 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31452 183200 Isle_Of_Wight 31454 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31454 183902 Isle_Of_Wight 31456 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31456 184176 Isle_Of_Wight 31458 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31458 183078 Isle_Of_Wight 31460 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31460 184122 Isle_Of_Wight 31462 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31462 183131 Isle_Of_Wight 31464 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31464 183258 Isle_Of_Wight 31466 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31466 183312 Isle_Of_Wight 31468 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31468 182877 Isle_Of_Wight 31470 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31470 182817 Isle_Of_Wight 31472 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31472 182775 Isle_Of_Wight 31474 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31474 182755 Isle_Of_Wight 31476 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31476 183064 Isle_Of_Wight 31478 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31478 184006 Isle_Of_Wight 31480 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31480 183799 Isle_Of_Wight 31482 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31482 184201 Isle_Of_Wight 31484 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31484 182796 Isle_Of_Wight 31486 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31486 183097 Isle_Of_Wight 31488 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31488 183117 Isle_Of_Wight 31490 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31490 184140 Isle_Of_Wight 31492 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31492 183251 Isle_Of_Wight 31494 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31494 184328 Isle_Of_Wight 31496 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31496 183296 Isle_Of_Wight 31498 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31498 183723 Isle_Of_Wight 31500 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31500 184115 Isle_Of_Wight 31502 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31502 183436 Isle_Of_Wight 31504 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31504 183425 Isle_Of_Wight 31506 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31506 183329 Isle_Of_Wight 31508 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31508 183359 Isle_Of_Wight 31510 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31510 183943 Isle_Of_Wight 31512 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31512 183746 Isle_Of_Wight 31514 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31514 182950 Isle_Of_Wight 31516 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31516 183709 Isle_Of_Wight 31518 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31518 182686 Isle_Of_Wight 31520 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31520 183678 Isle_Of_Wight 31522 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31522 183059 Isle_Of_Wight 31524 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31524 182835 Isle_Of_Wight 31526 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31526 183804 Isle_Of_Wight 31528 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31528 183044 Isle_Of_Wight 31530 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31530 183194 Isle_Of_Wight 31532 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31532 183237 Isle_Of_Wight 31534 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31534 183126 Isle_Of_Wight 31536 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31536 182675 Isle_Of_Wight 31538 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31538 184282 Isle_Of_Wight 31540 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31540 183791 Isle_Of_Wight 31542 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31542 182756 Isle_Of_Wight 31544 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31544 182940 Isle_Of_Wight 31546 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31546 182773 Isle_Of_Wight 31548 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31548 183229 Isle_Of_Wight 31550 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31550 184065 Isle_Of_Wight 31552 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31552 184362 Isle_Of_Wight 31554 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31554 182846 Isle_Of_Wight 31556 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31556 182991 Isle_Of_Wight 31558 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31558 184251 Isle_Of_Wight 31560 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31560 183423 Isle_Of_Wight 31562 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31562 184199 Isle_Of_Wight 31564 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31564 184094 Isle_Of_Wight 31566 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31566 182992 Isle_Of_Wight 31568 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31568 183632 Isle_Of_Wight 31570 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31570 184303 Isle_Of_Wight 31572 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31572 183433 Isle_Of_Wight 31574 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31574 183456 Isle_Of_Wight 31576 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31576 182709 Isle_Of_Wight 31578 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31578 182975 Isle_Of_Wight 31580 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31580 183625 Isle_Of_Wight 31582 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31582 183191 Isle_Of_Wight 31584 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31584 183566 Isle_Of_Wight 31586 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31586 183196 Isle_Of_Wight 31588 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31588 184028 Isle_Of_Wight 31590 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31590 183307 Isle_Of_Wight 31592 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31592 183400 Isle_Of_Wight 31594 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31594 183978 Isle_Of_Wight 31596 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31596 182663 Isle_Of_Wight 31598 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31598 182708 Isle_Of_Wight 31600 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31600 183295 Isle_Of_Wight 31602 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31602 182712 Isle_Of_Wight 31604 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31604 183960 Isle_Of_Wight 31606 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31606 184126 Isle_Of_Wight 31608 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31608 184114 Isle_Of_Wight 31610 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31610 182932 Isle_Of_Wight 31612 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31612 182750 Isle_Of_Wight 31614 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31614 183824 Isle_Of_Wight 31616 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31616 183234 Isle_Of_Wight 31618 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31618 183937 Isle_Of_Wight 31620 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31620 182689 Isle_Of_Wight 31622 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31622 183850 Isle_Of_Wight 31624 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31624 183688 Isle_Of_Wight 31626 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31626 184236 Isle_Of_Wight 31628 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31628 183895 Isle_Of_Wight 31630 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31630 184266 Isle_Of_Wight 31632 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31632 183685 Isle_Of_Wight 31634 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31634 182760 Isle_Of_Wight 31636 0071 High Water Mark (HWM) ISLE_OF_WIGHT 31636 182998