1008:
capacity of the channel between Beer Wall and the A361 at
Greylake Bridge was increased to 850 cubic feet per second (24 m/s) by raising both banks by up to 1 foot (0.3 m) in places, and by increasing the width of the channel on the right bank. Between Graylake Bridge and the King's Sedgemoor Drain, similar work was undertaken, but only the left bank needed raising, and widening took place on the right bank. Finally, the capacity of the King's Sedgemoor Drain between the Sowy outfall and Parchey Bridge was increased to 950 cubic feet per second (27 m/s) by raising of both banks by up to 1.6 feet (0.5 m), and by widening the channel on the right bank. In one place, a backwater was created, up to 20 feet (6 m) wide, leaving an island some 16 feet (5 m) wide between the new channel and the old one. Where widening was carried out, the new channel included a shelf 1 foot (0.3 m) below the normal summer water level, to increase the range of habitats available. The scheme is not expected to completely prevent flooding of Middle Moor and Aller Moor, but the frequency and severity of such flooding is expected to be significantly reduced as a result of the work.
1000:
March, but was closed again in
September as flood prevention work began. A trench was cut through the road to the east of the existing culvert for the Langacre Rhyne, where new culverts were to be constructed. In order to keep the road open during the winter, two temporary bridges were installed, one to carry the road and another for pedestrians. The road bridge, with a span of 52 feet (16 m), was placed in position in just three hours, and remained in use for 26 weeks. Four new culverts were built, each 9.8 by 6.9 feet (3.0 by 2.1 m), two to carry the realigned Langacre Rhyne, and two to carry part of the flow of the Sowy River. The culverts and the reconstruction of the road over the top of them was funded by the Department for Transport, and the road reopened in July 2015.
988:
serious flooding in
October 1960, when some 78 square miles (200 km) of the Somerset levels were inundated. A channel with a proposed capacity of 1,060 cubic feet per second (30 m/s) was proposed, but arguments about the cost of such a scheme resulted in the capacity being lowered to 600 cubic feet per second (17 m/s). However, the bridges and sluices were either built to cope with the larger flow rates, or made so that they could be easily altered, if funding became available. Construction began in 1969 and was completed in 1972. The scheme resulted in less flooding on Aller Moor.
607:
274:
858:
831:
804:
777:
723:
660:
573:
566:
559:
540:
532:
495:
488:
420:
413:
386:
379:
372:
345:
338:
311:
267:
468:
716:
687:
515:
318:
281:
245:
1489:
885:
743:
680:
600:
524:
461:
905:
878:
750:
694:
640:
633:
614:
454:
447:
427:
352:
304:
851:
824:
797:
770:
1446:
31:
1004:
South West Local
Enterprise Partnership. Beginning in April 2016, the two tilting weirs were built, and a bank to maintain the separation between the Sowy River and the new course of the Langacre Rhyne was constructed. This was the start of a three-year project to increase the capacity of the Sowy River and King's Sedgemoor Drain.
1016:
The
Environment Agency measure water quality of the river systems in England. Each is given an overall ecological status, which may be one of five levels: high, good, moderate, poor and bad. There are several components that are used to determine this, including biological status, which looks at the
1007:
While the Sowy River in theory had a design capacity of 600 cubic feet per second (17 m/s), in practice this was not achieved, and where required, the right bank was raised by up to 1.6 feet (0.5 m) between Monk’s Leaze Clyce and the A372 at Beer Wall in order to achieve this capacity. The
1003:
The next phase of the project was managed by the recently-formed
Somerset Rivers Authority, and involved re-routing the Langacre Rhyne and the Sowy River through the new culverts. The work included the construction of foundation slabs for two tilting weirs, and this was funded by the Heart of the
995:
during the winter diverting water from the Sowy River onto the moor. It has the capacity to hold 1.2 million cubic metres as part of a scheme by the
Parrett Internal Drainage Board to restore ten floodplains in Somerset. In spring the water is drained away to enable the land to be used as pasture
987:
wharf. Construction of the channel, together with improvements to the King's
Sedgemoor Drain and the rebuilding of the clyce at Dunball, to create a freshwater seal which prevents saltwater entering the drain from the river, cost £1.4 million. The scheme was first proposed in 1961, following
999:
In
January 2014, the A372 road at Beer Wall flooded, as culverts carrying the Sowy River and Langacre Rhyne were unable to cope with the volume of water. After water levels subsided a little, the road remained closed as pumps were placed on it to drain the surrounding land. The road reopened in
996:
during the summer. The scheme is also used to encourage water birds. In
January 2010, when bird numbers were at their peak, some 4,000 wigeon, lapwing and teal were recorded on the moor, while other species sighted included Bewick's swan, pintail, shoveler, golden plover and gadwall.
1075:
Like many waterways in the UK, the chemical status changed from good to fail in 2019, due to the presence of polybrominated diphenyl ethers (PBDE) and mercury compounds, neither of which had previously been included in the assessment.
1099:
959:, which discharges back into the Parrett much nearer to its outfall into the Bristol Channel. Following extensive flooding of the surrounding land in 2014, new culverts to carry the river under the
1348:
1130:
1252:
2059:
1313:
1088:
1455:
1344:
1330:
1295:
2034:
1181:
2044:
1025:
and fish. Chemical status, which compares the concentrations of various chemicals against known safe concentrations, is rated good or fail.
2029:
963:
at Beer Wall were constructed, and a three-year project to raise the banks and widen the channel to increase its capacity was undertaken.
2014:
208:
1999:
1223:
1192:
1119:
147:
1994:
991:
During 2009 and 2010 work was undertaken to upgrade sluice gates, watercourses and culverts to enable seasonal flooding of
2145:
1959:
1245:
1309:
1726:
1485:
1477:
1028:
The Sowy River and the King's Sedgemoor Drain are assessed as a single unit, and water quality was as follows in 2019.
92:
2049:
2155:
1494:
1424:
1526:
201:
2150:
2135:
2054:
2024:
2019:
1766:
1450:
1291:
2160:
2039:
1941:
1198:
980:
971:
The Sowy River is a 7.5-mile (12.1 km) embanked channel which starts at Monks Leaze clyce below
956:
582:
395:
253:
226:
133:
2140:
2114:
2004:
1398:
1964:
194:
1470:
2109:
2064:
1984:
1828:
1771:
1691:
1656:
1616:
1277:
8:
2009:
1989:
1974:
1969:
1758:
1671:
1703:
1463:
1188:
1115:
1979:
1778:
1676:
1536:
1399:"Glossary (see Biological quality element; Chemical status; and Ecological status)"
2104:
2069:
1936:
1928:
1853:
1697:
1651:
1636:
1586:
1511:
2099:
1923:
1913:
1888:
1838:
1823:
1813:
1666:
1576:
1560:
1531:
992:
2129:
2074:
1893:
1883:
1873:
1843:
1783:
976:
948:
702:
162:
149:
107:
94:
78:
983:, from where it flows to the estuary by gravity, rejoining the Parrett near
2094:
2089:
1918:
1848:
1833:
1713:
1018:
1331:"Concrete culverts installed as Somerset Beer Wall moves into third phase"
2079:
1898:
1868:
1788:
1753:
1748:
1743:
1611:
1581:
128:
1908:
1878:
1858:
1808:
1803:
1793:
1566:
1246:"Southlake Moor Favourable Condition Project Newsletter 2: Autumn 2010"
1022:
1818:
1798:
1708:
1621:
1601:
1596:
960:
1863:
1661:
1641:
1631:
1626:
1591:
1554:
1500:
1488:
972:
952:
944:
59:
1686:
1681:
1646:
984:
49:
2084:
1718:
1571:
1445:
1345:"Beer Wall reopens after completion of flood prevention works"
1606:
1182:"The Parrett Catchment Water Management Strategy Action Plan"
947:, England, designed to act as a flood relief channel for the
30:
951:. Water from the Parrett can be diverted into it just below
1310:"Reconnecting Somerset villages following severe flooding"
1224:"Southlake Moor restored to floodplain by drainage board"
1096:
River Sowy and King’s Sedgemoor Drain Enhancements Scheme
1278:"Flood-hit A372 road to re-open with temporary bridge"
1131:"River Sowy – King's Sedgemoor Drain enhancements"
1425:"King's Sedgemoor Drain - Henley Sluice to mouth"
2127:
1379:
1367:
1355:
1150:
1054:King's Sedgemoor Drain - Henley Sluice to mouth
187:
16:Artificial drainage channel in Somerset, England
1174:
1162:
1471:
1325:
1323:
202:
1112:Civil Engineering Heritage: Southern England
1478:
1464:
1320:
1292:"Flood Schemes at Beer Wall and Muchelney"
209:
195:
1347:. Somerset County Gazette. 20 July 2015.
1333:. Environment Analyst. 30 September 2015.
531:
523:
1187:. Environment Agency. 2002. p. 28.
1298:from the original on 24 September 2021.
2128:
1459:
1156:
1109:
1105:from the original on 27 January 2022.
943:is an artificial drainage channel in
1351:from the original on 31 August 2022.
975:, and carries excess water from the
1316:from the original on 22 April 2021.
1168:
1128:
1066:44.63 square miles (115.6 km)
273:
13:
1727:List of civil parishes in Somerset
1385:
1373:
1361:
1086:
857:
830:
803:
776:
722:
659:
572:
565:
558:
494:
487:
419:
412:
385:
378:
371:
344:
337:
14:
2172:
1439:
1294:. Somerset County Council. 2014.
1258:from the original on 2 March 2022
606:
467:
1487:
1444:
1011:
903:
883:
876:
856:
849:
829:
822:
802:
795:
775:
768:
748:
741:
721:
715:
714:
692:
685:
678:
658:
638:
631:
612:
605:
598:
571:
564:
557:
539:
538:
530:
522:
514:
513:
493:
486:
466:
459:
452:
445:
425:
418:
411:
384:
377:
370:
350:
343:
336:
317:
316:
310:
309:
302:
280:
279:
272:
266:
265:
244:
243:
29:
2045:Population of major settlements
1417:
1391:
1337:
1079:
884:
742:
679:
599:
460:
1302:
1284:
1270:
1238:
1216:
904:
877:
749:
693:
686:
639:
632:
613:
453:
446:
426:
351:
303:
141: • coordinates
86: • coordinates
1:
1143:
66:Physical characteristics
2035:Parliamentary constituencies
1527:Bath and North East Somerset
1280:. BBC News. 9 December 2014.
1137:. Somerset Rivers Authority.
850:
823:
796:
769:
7:
2020:Lord Lieutenant of Somerset
10:
2177:
2146:Drainage canals in England
2000:Grade II* listed buildings
1251:. Parrett Drainage Board.
1063:17.3 miles (27.8 km)
1017:quantity and varieties of
966:
1952:
1736:
1545:
1519:
1508:
955:, and is conveyed to the
912:
897:
892:
870:
865:
843:
838:
816:
811:
789:
784:
762:
757:
735:
730:
708:
701:
672:
667:
652:
647:
625:
621:
592:
580:
551:
547:
507:
502:
480:
475:
439:
434:
405:
393:
364:
359:
330:
325:
296:
288:
259:
252:
237:
178:
139:
127:
123:
84:
74:
70:
65:
55:
45:
40:
28:
23:
2115:West Somerset Coast Path
2030:National nature reserves
2005:High Sheriff of Somerset
1995:Grade I listed buildings
182:12 km (7.5 mi)
35:The Sowy River at Stathe
1429:Catchment Data Explorer
1403:Catchment Data Explorer
839:Middle Moor footbridge
476:King's Sedgemoor Drain
1226:. BBC. 17 January 2011
1098:. Environment Agency.
1089:"The Preferred Option"
981:King's Sedgemoor Drain
957:King's Sedgemoor Drain
254:King's Sedgemoor Drain
134:King's Sedgemoor Drain
2156:Canals opened in 1972
2110:South West Coast Path
2065:Transport in Somerset
2015:Local nature reserves
1985:Geography of Somerset
1453:at Wikimedia Commons
1431:. Environment Agency.
1135:Annual Report 2020-21
1110:Otter, R. A. (1994).
758:Oath lock and sluice
435:Greylake Farm Bridge
1405:. Environment Agency
785:Church Drove Bridge
163:51.11194°N 2.88778°W
108:51.04472°N 2.84389°W
2050:Scheduled monuments
2010:History of Somerset
1990:Geology of Somerset
1975:Economy of Somerset
1970:Culture of Somerset
1548:(cities in italics)
1520:Unitary authorities
668:Aller Drove Bridge
360:Bimpit Lane Bridge
159: /
104: /
2151:Canals in Somerset
2136:Rivers of Somerset
2068:Geographic areas:
1114:. Thomas Telford.
893:Monks Leaze clyce
584: A372
503:Head Drove Bridge
397: A361
168:51.11194; -2.88778
113:51.04472; -2.84389
2161:Parrett catchment
2123:
2122:
1704:Weston-super-Mare
1546:Major settlements
1495:Ceremonial county
1449:Media related to
1194:978-1-85705-788-1
1121:978-0-7277-1971-3
1073:
1072:
1037:Ecological Status
937:
936:
933:
932:
588:Beer Wall Bridge
186:
185:
2168:
1779:Badgworthy Water
1537:Somerset Council
1503:
1497:
1492:
1491:
1480:
1473:
1466:
1457:
1456:
1448:
1433:
1432:
1421:
1415:
1414:
1412:
1410:
1395:
1389:
1383:
1377:
1371:
1365:
1359:
1353:
1352:
1341:
1335:
1334:
1327:
1318:
1317:
1306:
1300:
1299:
1288:
1282:
1281:
1274:
1268:
1267:
1265:
1263:
1257:
1250:
1242:
1236:
1235:
1233:
1231:
1220:
1214:
1213:
1211:
1209:
1204:on 19 March 2009
1203:
1197:. Archived from
1186:
1178:
1172:
1166:
1160:
1154:
1138:
1125:
1106:
1104:
1093:
1031:
1030:
907:
906:
887:
886:
880:
879:
860:
859:
853:
852:
833:
832:
826:
825:
806:
805:
799:
798:
779:
778:
772:
771:
752:
751:
745:
744:
725:
724:
718:
717:
696:
695:
689:
688:
682:
681:
662:
661:
642:
641:
635:
634:
616:
615:
609:
608:
602:
601:
587:
585:
575:
574:
568:
567:
561:
560:
542:
541:
534:
533:
526:
525:
517:
516:
497:
496:
490:
489:
470:
469:
463:
462:
456:
455:
449:
448:
429:
428:
422:
421:
415:
414:
401:Greylake Bridge
400:
398:
388:
387:
381:
380:
374:
373:
354:
353:
347:
346:
340:
339:
320:
319:
313:
312:
306:
305:
283:
282:
276:
275:
269:
268:
247:
246:
235:
234:
211:
204:
197:
188:
174:
173:
171:
170:
169:
164:
160:
157:
156:
155:
152:
119:
118:
116:
115:
114:
109:
105:
102:
101:
100:
97:
87:
33:
21:
20:
2176:
2175:
2171:
2170:
2169:
2167:
2166:
2165:
2141:Somerset Levels
2126:
2125:
2124:
2119:
2105:Somerset Levels
2070:Blackdown Hills
2067:
1948:
1767:Bristol Channel
1732:
1721:
1652:North Petherton
1637:Midsomer Norton
1547:
1541:
1515:
1512:Somerset Portal
1504:
1499:
1493:
1486:
1484:
1442:
1437:
1436:
1423:
1422:
1418:
1408:
1406:
1397:
1396:
1392:
1384:
1380:
1372:
1368:
1360:
1356:
1343:
1342:
1338:
1329:
1328:
1321:
1308:
1307:
1303:
1290:
1289:
1285:
1276:
1275:
1271:
1261:
1259:
1255:
1248:
1244:
1243:
1239:
1229:
1227:
1222:
1221:
1217:
1207:
1205:
1201:
1195:
1184:
1180:
1179:
1175:
1167:
1163:
1155:
1151:
1146:
1141:
1122:
1102:
1091:
1082:
1040:Chemical Status
1014:
969:
908:
888:
881:
861:
854:
834:
827:
807:
800:
780:
773:
753:
746:
726:
719:
697:
690:
683:
663:
648:Langacre Rhyne
643:
636:
617:
610:
603:
583:
581:
576:
569:
562:
543:
536:
535:
528:
527:
518:
498:
491:
471:
464:
457:
450:
430:
423:
416:
396:
394:
389:
382:
375:
355:
348:
341:
326:Langacre Rhyne
321:
314:
307:
284:
277:
270:
248:
229:
220:
219:
215:
167:
165:
161:
158:
153:
150:
148:
146:
145:
142:
112:
110:
106:
103:
98:
95:
93:
91:
90:
85:
36:
17:
12:
11:
5:
2174:
2164:
2163:
2158:
2153:
2148:
2143:
2138:
2121:
2120:
2118:
2117:
2112:
2107:
2102:
2100:Quantock Hills
2097:
2092:
2087:
2082:
2077:
2072:
2062:
2057:
2052:
2047:
2042:
2037:
2032:
2027:
2022:
2017:
2012:
2007:
2002:
1997:
1992:
1987:
1982:
1977:
1972:
1967:
1965:County Council
1962:
1960:Country houses
1956:
1954:
1950:
1949:
1947:
1946:
1945:
1944:
1942:South Somerset
1939:
1931:
1926:
1921:
1916:
1911:
1906:
1901:
1896:
1891:
1889:Severn Estuary
1886:
1881:
1876:
1871:
1866:
1861:
1856:
1851:
1846:
1841:
1839:Hoar Oak Water
1836:
1831:
1826:
1821:
1816:
1811:
1806:
1801:
1796:
1791:
1786:
1781:
1776:
1775:
1774:
1769:
1761:
1756:
1751:
1746:
1740:
1738:
1734:
1733:
1731:
1730:
1716:
1711:
1706:
1701:
1694:
1689:
1684:
1679:
1674:
1669:
1667:Shepton Mallet
1664:
1659:
1654:
1649:
1644:
1639:
1634:
1629:
1624:
1619:
1614:
1609:
1604:
1599:
1594:
1589:
1584:
1579:
1577:Burnham-on-Sea
1574:
1569:
1564:
1557:
1551:
1549:
1543:
1542:
1540:
1539:
1534:
1532:North Somerset
1529:
1523:
1521:
1517:
1516:
1509:
1506:
1505:
1483:
1482:
1475:
1468:
1460:
1441:
1440:External links
1438:
1435:
1434:
1416:
1390:
1378:
1366:
1354:
1336:
1319:
1312:. Mabey Hire.
1301:
1283:
1269:
1237:
1215:
1193:
1173:
1161:
1148:
1147:
1145:
1142:
1140:
1139:
1126:
1120:
1107:
1083:
1081:
1078:
1071:
1070:
1067:
1064:
1061:
1058:
1055:
1051:
1050:
1047:
1044:
1041:
1038:
1035:
1013:
1010:
993:Southlake Moor
968:
965:
935:
934:
931:
930:
928:
926:
924:
922:
920:
918:
915:
914:
913:River Parrett
911:
909:
902:
900:
898:
895:
894:
891:
889:
882:
875:
873:
871:
868:
867:
864:
862:
855:
848:
846:
844:
841:
840:
837:
835:
828:
821:
819:
817:
814:
813:
810:
808:
801:
794:
792:
790:
787:
786:
783:
781:
774:
767:
765:
763:
760:
759:
756:
754:
747:
740:
738:
736:
733:
732:
731:Stathe Bridge
729:
727:
720:
713:
711:
709:
706:
705:
700:
698:
691:
684:
677:
675:
673:
670:
669:
666:
664:
657:
655:
653:
650:
649:
646:
644:
637:
630:
628:
626:
623:
622:
620:
618:
611:
604:
597:
595:
593:
590:
589:
579:
577:
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2075:Brendon Hills
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2018:
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2013:
2011:
2008:
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1874:Midford Brook
1872:
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1394:
1388:, p. 20.
1387:
1382:
1376:, p. 19.
1375:
1370:
1364:, p. 17.
1363:
1358:
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1315:
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1026:
1024:
1020:
1019:invertebrates
1012:Water Quality
1009:
1005:
1001:
997:
994:
989:
986:
982:
978:
977:River Parrett
974:
964:
962:
958:
954:
950:
949:River Parrett
946:
942:
929:
927:
925:
923:
921:
919:
917:
916:
910:
901:
899:
896:
890:
874:
872:
869:
866:Combe bridge
863:
847:
845:
842:
836:
820:
818:
815:
809:
793:
791:
788:
782:
766:
764:
761:
755:
739:
737:
734:
728:
712:
710:
707:
704:
703:River Parrett
699:
676:
674:
671:
665:
656:
654:
651:
645:
629:
627:
624:
619:
596:
594:
591:
586:
578:
555:
553:
550:
545:
511:
509:
506:
500:
484:
482:
479:
473:
443:
441:
438:
432:
409:
407:
404:
399:
391:
368:
366:
363:
357:
334:
332:
329:
323:
300:
298:
295:
291:
286:
263:
261:
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207:
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192:
190:
189:
181:
177:
172:
144:
138:
135:
132:
130:
126:
122:
117:
89:
83:
80:
79:River Parrett
77:
73:
69:
64:
61:
58:
54:
51:
48:
44:
39:
32:
27:
22:
19:
2095:Polden Hills
2090:Mendip Hills
1919:Wellow Brook
1903:
1725:
1722:
1714:Wiveliscombe
1696:
1559:
1510:
1443:
1428:
1419:
1407:. Retrieved
1402:
1393:
1381:
1369:
1357:
1339:
1304:
1286:
1272:
1260:. Retrieved
1240:
1228:. Retrieved
1218:
1206:. Retrieved
1199:the original
1176:
1164:
1152:
1134:
1129:SRA (2021).
1111:
1095:
1080:Bibliography
1074:
1027:
1015:
1006:
1002:
998:
990:
970:
940:
938:
812:Oath Bridge
289:
18:
2080:Chew Valley
1937:Congresbury
1933:Yeo rivers
1763:Axe rivers
1612:Glastonbury
1582:Castle Cary
1208:28 December
1087:EA (2020).
1069:artificial
1023:angiosperms
292:footbridge
166: /
111: /
2130:Categories
1879:Oare Water
1692:Wellington
1657:Portishead
1617:Highbridge
1567:Bridgwater
1451:Sowy River
1262:19 January
1230:19 January
1157:Otter 1994
1144:References
941:Sowy River
290:Sowy River
218:Sowy River
154:02°53′16″W
151:51°06′43″N
96:51°02′41″N
24:Sowy River
1929:Whitelake
1854:Huntspill
1799:Cam Brook
1723:See also:
1709:Wincanton
1622:Ilminster
1602:Dulverton
1597:Crewkerne
1057:Moderate
1046:Catchment
961:A372 road
99:2°50′38″W
1924:West Lyn
1914:Washford
1864:Land Yeo
1824:Fivehead
1814:East Lyn
1772:Lyme Bay
1672:Somerton
1662:Radstock
1642:Minehead
1632:Langport
1627:Keynsham
1592:Clevedon
1555:Axbridge
1501:Somerset
1349:Archived
1314:Archived
1296:Archived
1253:Archived
1169:SRA 2021
1100:Archived
1049:Channel
973:Langport
953:Langport
945:Somerset
60:Somerset
41:Location
2055:Schools
2025:Museums
1894:Sheppey
1844:Holford
1784:Banwell
1687:Watchet
1682:Taunton
1647:Nailsea
1386:EA 2020
1374:EA 2020
1362:EA 2020
1034:Section
985:Dunball
979:to the
967:History
50:England
46:Country
2085:Exmoor
2040:Places
1953:Topics
1884:Parret
1849:Horner
1834:Haddeo
1737:Rivers
1719:Yeovil
1677:Street
1572:Bruton
1409:17 May
1191:
1118:
1043:Length
227:Legend
179:Length
75:Source
2060:SSSIs
1899:Somer
1869:Mells
1829:Frome
1789:Barle
1754:Avill
1749:Aller
1744:Alham
1698:Wells
1607:Frome
1587:Chard
1256:(PDF)
1249:(PDF)
1202:(PDF)
1185:(PDF)
1103:(PDF)
1092:(PDF)
1060:Fail
129:Mouth
56:State
1980:Flag
1909:Tone
1904:Sowy
1859:Isle
1809:Chew
1804:Cary
1794:Brue
1759:Avon
1561:Bath
1411:2017
1264:2011
1232:2011
1210:2009
1189:ISBN
1116:ISBN
939:The
1819:Exe
1498:of
2132::
1427:.
1401:.
1322:^
1133:.
1094:.
1021:,
1479:e
1472:t
1465:v
1413:.
1266:.
1234:.
1212:.
1171:.
1159:.
1124:.
210:e
203:t
196:v
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
