1309:
needed between there and
Blackwatertown to eradicate sharp bends and shoals. New sections of river channel were cut, and were made between 80 and 90 feet (24 and 27 m) wide, with their depth sufficient to provide 6 feet (1.8 m) of water when Lough Neagh was at it lowest designed level during the summer months. Excavated material was used to backfill the old river channels, so that loss of land was reduced. To protect the surrounding low-lying land from flooding by the river, the channel was embanked. The embankments were designed with self-acting sluices, to allow watercourses to pass through them when water levels were suitable. After some of the embankments had been finished, local landowners petitioned against their completion, as they felt that the lower level of Lough Neagh and the works already carried out gave them sufficient protection, and it was inadvisable to completely protect the land. The work on defences was thus deferred.
1329:
the less profitable
Blackwater and Upper Bann. However, by the time it was completed, three separate and independent trusts were set up. The Upper Bann and the Blackwater were managed by the Upper Bann Navigation Trust. The counties to the south of Lough Neagh were expected to fund their part of the drainage and navigation works, and to contribute £800 per year towards the running of the Trust, with no income to meet this figure. The Lower Bann Navigation Trust and the Lough Neagh Drainage Trust were wound up in 1929, with their responsibilities passing to the Ministry of Finance, but despite vigorous campaigning by the counties supporting the Upper Bann Navigation Trust, the government refused to disband it, and it continued to be funded until 1954, when the Ministry of Commerce took over the waterways and effectively closed them.
49:
1285:. Accordingly, they asked John Killaly, their engineer, to look at the first of these routes, "in general terms". Although the Directors did not proceed immediately, due to lack of funds, the scheme was revived in 1822 and the canal was eventually completed in 1841. Below the first lock at Charlemont, the canal joined the river, and used the river channel to reach Lough Neagh. The venture was not a success, as significant volumes of traffic failed to develop, and the canal was taken over by the Board of Works in 1851.
927:
708:
862:
1219:
1199:
1152:
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1038:
1018:
835:
1105:
1065:
999:
934:
905:
869:
730:
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478:
604:
855:
672:
638:
618:
497:
1308:
The total cost of the project, split between navigation and drainage work, was estimated at £183,775. The cost of work on the
Blackwater exceeded that on any of the other inflows to Lough Neagh. While the first 5 miles (8 km) of the river above the lough was large and wide, considerable work was
1328:
The project took eleven years to complete, by which time costs had overrun by £50,000. The government were approached to make up the shortfall, and did so. When the scheme began, there was to be a single controlling authority to maintain the works, with the more profitable Lower Bann helping to fund
1296:
navigable from Lough Neagh to the sea. This involved removing a great shoal of rock at Portna which had the effect of lowering the level of Lough Neagh by around 6 feet (1.8 m). This had a significant effect on the
Blackwater, and major work was required on the river to keep it navigable. The
1324:
bog, and rejoining the
Blackwater just above Verner's Bridge, some 5 miles (8 km) below the original confluence. This had the advantage that under flood conditions, the water level in the Blackwater was from 4 to 5 feet (1.2 to 1.5 m) lower than that further upstream. The channel below
1292:(The O.P.W., often known as 'the Board of Works') had obtained powers in 1842 to carry out various projects around the Lough Neagh basin, with the intent of improving drainage, navigation and mill-power. Following a survey by their engineer, John McMahon, a scheme was developed to make the
1276:
The inland waterways network of
Ireland had developed in the later part of the eighteenth century, and in 1814, the Directors General of Inland Navigation were keen to join the various parts together. This required a link between Lough Neagh and
1320:, which joined to the south of Clonmain and flowed into the Blackwater below Charlemont bridge. This aspect of the project was reworked, and a new straight cut was made from a point on the Tall River to the north of Clonmain, crossing
1297:
Maghery Cut, which gave access to Lough Neagh to the south of
Derrywarragh Island, had to be made deeper and wider, and the channel of the river was dredged, to maintain a navigable depth. The final lock on the
390:
1468:
376:
meaning "meadow of Dabhal". This was anglicised as
Clanaul, the former name of the parish of Eglish, as well as Glenaul, which was used as the name of the former local
1568:
1622:
1301:
and the Ulster Canal had to be reconstructed with a lower sill and deeper gates, to accommodate the lower level of the river, as did the final lock on the
441:
348:
The
Blackwater's length is 91.3 km (56.75 mi). If the Blackwater's flow is measured through its path through the 30 km (19 mi)
789:
268:
31:
1325:
Verner's Bridge was also considerably wider, and so could better cope with the volumes of water discharged by the two tributaries.
1617:
356:, the total length is 186.3 km (115.75 mi). This makes the Blackwater–Neagh–Bann the longest natural stream flow in
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1370:
434:
1453:
48:
17:
1612:
1607:
427:
1321:
767:
793:
377:
1227:
1160:
1338:
459:
397:
57:
384:(The Great River). Part of the rivers course forms the border between Counties Tyrone and Monaghan.
1353:
1289:
30:
This article is about the
Northern Irish "Blackwater". For other rivers of a similar name, see
8:
337:
324:. The river divides County Armagh from County Tyrone and also divides County Tyrone from
361:
65:
1385:
1366:
1164:
53:
1298:
716:
313:
127:
27:
River in Counties Armagh and Tyrone, Northern Ireland, and County Monaghan, Ireland
325:
984:
333:
289:
131:
107:
92:
1601:
1583:
1570:
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745:
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321:
309:
305:
165:
69:
61:
1317:
942:
913:
329:
317:
272:
1302:
687:
557:
528:
349:
201:
186:
1313:
1293:
1278:
877:
506:
353:
276:
1414:
401:
405:
357:
161:
301:
1443:
Rivers and their Catchment Basins 1958 (Table of Reference)
400:
Panoramic view of the River Blackwater, picture taken of
352:
and onwards to the sea via the 64.4 km (40 mi)
1499:
1487:
1538:
1516:
1514:
1352:
CPW-I, Commissioners of Public Works (Ireland) (1853).
372:
The River Blackwater was originally known in Irish as
1550:
1511:
1526:
1356:. HMSO (Enhanced parliamentary papers on Ireland).
1599:
420:
408:. On the far side of the river is Derrylaughan,
435:
219:1,507 square kilometres (582 sq mi)
416:
1360:
380:of Armagh Union. It has also been known as
99:
84:
442:
428:
56:over the River Blackwater, which connects
1623:Republic of Ireland–United Kingdom border
1281:, and another between Lough Erne and the
14:
1600:
1556:
1520:
1505:
1493:
1447:
1379:
1312:The original plans were to embank the
1544:
1532:
1351:
241:19.7 m/s (700 cu ft/s)
24:
1415:"An Abhainn Mhór/River Blackwater"
1218:
1198:
1151:
1131:
1037:
1017:
926:
707:
25:
1634:
1469:"River Blackwater, County Tyrone"
1365:. Imray Laurie Norie and Wilson.
1104:
1064:
998:
933:
904:
868:
861:
729:
700:
651:
548:
1305:where it joined the Upper Bann.
1241:
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583:
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476:
389:
316:. Its source is to the north of
47:
1363:The Inland Waterways of Ireland
1344:
890:
827:
780:
736:
610:
577:
541:
519:
1618:International rivers of Europe
1461:
1432:
1407:
1178:
1084:
584:
570:
477:
211:91.3 kilometres (56.7 mi)
13:
1:
1456:Ulster Journal of Archaeology
1400:
603:
138:Physical characteristics
1354:"Twentieth report 1852-1853"
964:A29 Moy - Charlemont bridge
854:
671:
637:
617:
496:
173: • elevation
7:
1332:
378:district electoral division
197: • location
156: • location
10:
1639:
1439:Ordnance Survey of Ireland
1382:Ireland's Inland Waterways
1361:Cumberlidge, Jane (2002).
1290:The Office of Public Works
843:1852 Flood relief channel
237: • average
29:
1339:List of rivers of Ireland
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1234:
1226:
1211:
1206:
1191:
1186:
1171:
1159:
1144:
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417:Inland navigation history
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32:River Blackwater, Ireland
367:
343:
264: • right
1613:Rivers of County Tyrone
1608:Rivers of County Armagh
1026:Battleford Road bridge
790:Portadown to Omagh Line
360:and is longer than the
177:59 metres (194 ft)
100:
85:
1473:experience.arcgis.com
1380:Delany, Ruth (2004).
794:Vernersbridge station
1584:54.51132°N 6.57832°W
1322:Sir William Verner's
626:Derrywarragh Island
328:, making it part of
1580: /
1547:, pp. 216–217.
1508:, pp. 166–167.
1496:, pp. 150–153.
1384:. Appletree Press.
1250:source near Augher
338:Republic of Ireland
250:Basin features
1589:54.51132; -6.57832
1140:Bree Upper bridge
362:Munster Blackwater
1475:. PacenamesNI.org
1391:978-0-86281-824-1
1372:978-0-85288-424-9
1274:
1273:
1270:
1269:
796:currently closed
298:Ulster Blackwater
282:
281:
54:Charlemont Bridge
18:Ulster Blackwater
16:(Redirected from
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1299:Coalisland Canal
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1207:A28 road bridge
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1093:Start of border
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314:Northern Ireland
286:River Blackwater
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174:
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128:Northern Ireland
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42:River Blackwater
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382:An Abhainn Mhór
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326:County Monaghan
294:An Abhainn Mhór
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114:
105:
101:An Abhainn Mhór
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15:
12:
11:
5:
1636:
1626:
1625:
1620:
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1610:
1562:
1561:
1559:, p. 169.
1549:
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1535:, p. 216.
1525:
1523:, p. 167.
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1187:End of border
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334:United Kingdom
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746:River Torrent
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1318:Callan River
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1230:road bridge
943:Ulster Canal
914:Callan River
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1557:Delany 2004
1521:Delany 2004
1506:Delany 2004
1494:Delany 2004
1303:Newry Canal
1288:Meanwhile,
1046:A28 bridge
768:M1 motorway
688:Newry Canal
660:Upper Bann
558:Lagan Canal
529:Lough Neagh
350:Lough Neagh
255:Tributaries
202:Lough Neagh
78:Native name
1602:Categories
1572:54°30′41″N
1545:CPW-I 1853
1533:CPW-I 1853
1424:9 December
1419:logainm.ie
1401:References
1314:Tall River
1294:Lower Bann
1279:Lough Erne
1120:tributary
1073:Cor River
878:Tall River
507:River Bann
354:Lower Bann
330:the border
304:mainly in
277:River Tall
216:Basin size
58:Charlemont
1575:6°34′42″W
269:Cor River
228:Discharge
160:north of
1333:See also
1316:and the
336:and the
119:Location
1167:bridge
987:bridge
124:Country
66:The Moy
1479:8 July
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460:Legend
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358:Ulster
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300:is a
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187:Mouth
108:Irish
93:Irish
64:, to
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1386:ISBN
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132:(UK)
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