World Library  
Flag as Inappropriate
Email this Article

Rivers of Ireland

Article Id: WHEBN0000912601
Reproduction Date:

Title: Rivers of Ireland  
Author: World Heritage Encyclopedia
Language: English
Subject: River Bann, River Shannon, Rivers of Ireland, River Dargle, River Camac
Collection: Drainage Basins of Ireland, Rivers of Ireland, Rivers of Northern Ireland
Publisher: World Heritage Encyclopedia

Rivers of Ireland

Shown here are all the major rivers and tributaries of Ireland with their lengths (in kilometres and miles). Starting with the Northern Ireland rivers, and going in a clockwise direction, the rivers (and tributaries) are listed in regard to their entry into the different seas: the Irish Sea, the Celtic Sea and the Atlantic Ocean. Also shown are two tables. Table 1 shows the longest rivers in Ireland with their lengths (in kilometres and miles), the counties they flow through, and their catchment areas (in square kilometres). Table 2 shows the largest rivers in Ireland (by mean flow) in cubic metres per second.

Some of the larger or better known rivers of Ireland are shown on this map (large version).

The longest river in Ireland is the River Shannon, at 360.5 kilometres (224.0 mi). The river develops into three lakes along its course, Lough Allen, Lough Ree and Lough Derg. Of these, Lough Derg is the largest. The Shannon enters the Atlantic Ocean at the Shannon Estuary. Other major rivers include the River Liffey, River Lee, River Swilly, River Foyle, River Lagan, River Erne, River Blackwater, River Nore, River Suir, River Barrow (The Three Sisters), River Bann, River Slaney, River Boyne and River Corrib.


  • Longest Irish Rivers (with Basin areas) 1
  • Rivers in Northern Ireland 2
  • Rivers in the Republic of Ireland, flowing into the Irish Sea 3
  • Rivers in the Republic of Ireland, flowing into the Celtic Sea 4
  • Rivers in the Republic of Ireland, flowing into the Atlantic Ocean 5
  • Largest Irish Rivers (by flow) 6
  • See also 7
  • References 8
  • External links 9

Longest Irish Rivers (with Basin areas)

Lengths obtained from the Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference), and for the rivers Bann and Erne - Notes on River Basins by Robert A. Williams

River Counties Length Basin Area
1 River Shannon (including estuary and lakes)a Cavan, Leitrim, Roscommon, Longford, Westmeath, Galway, Offaly,

Tipperary, Clare, Limerick, Kerry

360 km (224 mi) 16,800 km2[1]
2 River Barrowb Laois, Kildare, Kilkenny, Carlow,

Wexford, Waterford

192 km (119 mi) 3,067 km2[1]
3 River Suirb Tipperary, Waterford, Kilkenny, Wexford 184 km (114.5 mi) 3,610 km2[1]
4 River Blackwater (Munster) Kerry, Cork, Waterford 168 km (104.5 mi) 3,324 km2[1]
5 River Bann (including flow through L. Neagh)c Down, Armagh, Antrim, Londonderry 159 km (99 mi) 5,808 km2[2]
6 River Noreb Tipperary, Laois, Kilkenny 140 km (87 mi) 2,530 km2[1]
7 River Suck (Shannon) Roscommon, Galway 133 km (83 mi) 1,600 km2[3]
8 River Liffey Wicklow, Kildare, Dublin 132 km (82 mi) 1,256 km2[1]
9t River Erne Cavan, Fermanagh, Donegal 129 km (80 mi)[4] 4,372 km2[1]
9t River Foyle (including Rivers Mourne, Strule & Camowen) Tyrone, Londonderry, Donegal 129 km (80 mi) 2,925 km2[2]
11 River Slaney Wicklow, Carlow, Wexford 117 km (73 mi) 1,762 km2[1]
12 River Boyne Kildare, Offaly, Meath, Louth 113 km (70 mi) 2,695 km2[1]
13 River Moy Sligo, Mayo 101 km (62.5 mi) 2,086 km2[1]
14 River Clare (Corrib)d Mayo, Roscommon, Galway 93 km (58 mi) 1,108 km2[5]
15 River Blackwater (Ulster) (Bann) c Tyrone, Monaghan, Armagh 92 km (57 mi) 1,507 km2[2]
16t River Inny (Shannon) Cavan, Longford, Westmeath 89 km (55.5 mi) 1.254 km2[3]
16t River Lee Cork 89 km (55.5 mi) 1,253 km2[1]
18 River Lagan Down, Antrim 86 km (53.5 mi) 565 km2[2]
19 River Brosna (Shannon) Westmeath, Offaly 79 km (49 mi) 1,248 km2[3]
20 River Laune (includes Lough Leane and River Flesk) Kerry 76 km (47.25 mi) 829 km2
21 River Feale (Shannon) Cork, Limerick, Kerry 74 km (46 mi) 1,170 km2[6]
22 River Bandon Cork 72 km (45 mi) 608 km2[1]
23 River Blackwater (Boyne) Cavan, Meath 68 km (42.5 mi) 733 km2[7]
24 River Annalee (Erne) Monaghan, Cavan 66.8 km (41.75 mi) 522 km2[7]
25t River Bride (M. Blackwater) Cork, Waterford 64 km (40 mi) 419 km2
25t Boyle River (including Lung River) (Shannon) Mayo, Sligo, Roscommon 64 km (40 mi)[8] 725 km2
27 River Deel (Shannon) Cork, Limerick 63.2 km (39.5 mi) 481 km2[7]
28t River Robe (Corrib)d Mayo 62.8 km (39.25 mi) 320 km2
28t River Finn (Foyle) Donegal, Tyrone 62.8 km (39.25 mi) 505 km2[7]
30 River Maigue (Shannon) Cork, Limerick 62 km (38.75 mi) 1,000 km2
31 Fane River Monaghan, Armagh, Louth 61.2 km (38.25 mi) 350 km2
32 Ballisodare River Sligo 60.8 km (38 mi) 650 km2[2]
33 River Dee (Louth) Cavan, Meath, Louth 60.4 km (37.75 mi) 392 km2[7]
34 River Fergus (Shannon) Clare 58.4 km (36.5 mi) 1,043 km2
35 Little Brosna River (Shannon) Offaly, Tipperary 57.6 km (36 mi) 662 km2
36t Mulkear River (including Bilboa River) (Shannon) Tipperary, Limerick 55.9 km (34.75 mi) 650 km2
36t River Glyde (Co. Louth) Cavan, Meath, Louth 55.9 km (34.75 mi) 348 km2


  • The length of the River Shannon from the Shannon Pot to Limerick City is 258 kilometres (160 mi)[9] with a basin area of 11,700 km2.
  • The River Shannon's overall length (to Loop Head), using the Owenmore River (Glangevlin) as source, is 372 kilometres (231 mi),[10] 11 km (7 ml) longer than the Shannon Pot source.
  • The River Shannon's overall length (to Loop Head), using the Boyle River's furthest source, is 392.1 kilometres (243.6 mi),[11] making the Boyle-Shannon river the longest natural stream flow (source to sea) in Ireland, 31.6 km (19.5 ml) longer than the Shannon Pot source.
  • The River Shannon is a traditional freshwater river for just about 45% of its total length. Excluding the 102.2-kilometre (63.5 mi) tidal estuary from its total length of 360 kilometres (224 mi), if one also excludes the lakes (L. Derg 39 kilometres (24 mi), L. Ree 29 kilometres (18 mi), L. Allen 11 kilometres (7 mi)[12] plus L. Boderg, L. Bofin, L. Forbes, L. Corry) from the Shannon's freshwater flow of 258.3 kilometres (160.5 mi), the Shannon as a freshwater river is only about 160 kilometres (100 mi) long.


  • The total basin area of the Three Sisters (Barrow, Nore and Suir) is 9,207 km2.


  • The traditional length given for the River Bann is 80 miles (129 km) which is the combined total length of Upper and Lower Bann rivers and doesn't include Lough Neagh.
  • The total length of the Ulster Blackwater from its source to the sea via L. Neagh and the Lower Bann is 186.3 km (115.75 mi),[13] surpassed, in Ireland, only by the Shannon and Barrow rivers. This is the longest stream flow (source to sea) in Ulster.[14]


Rivers in Northern Ireland

With length in miles (and km)

Rivers in the Republic of Ireland, flowing into the Irish Sea

With length in miles (and km)

Rivers in the Republic of Ireland, flowing into the Celtic Sea

With length in miles (and km)

Rivers in the Republic of Ireland, flowing into the Atlantic Ocean

With length in miles (and km)

Largest Irish Rivers (by flow)

River (River Basin) Mean Discharge


1 River Shannon[1] 209*
2 River Corrib[1] 104
3 River Bann[18] 92
4 River Foyle[19] 90
5 River Blackwater (Munster)[1] 87
6 River Erne[1] 85
7 River Suir[1] 68**
8 River Moy[1] 63
9 River Barrow[1] 44**
10 River Laune[1] 43
11 River Nore[1] 42**
12 River Lee[1] 40
13 River Boyne[1] 38
14 River Cong[7] (Corrib) 37.6
15 River Slaney[1] 37
16 River Feale[20] (Shannon) 34.6
17 River Fergus[20] (Shannon) 25.7
18 River Clare[21] (Corrib) 22.9
19 River Suck[21] (Shannon) 22.2
20 River Bandon[1] 21.5
21 River Mourne[21] (Foyle) 21.1
22 River Blackwater (Ulster)[21] (Bann) 19.7
23 River Ballisodare[7] 18.25
24 River Inny[21] (Shannon) 18.4
25 River Avoca[1] 18
26 River Liffey[1] 17
27 River Derg[21] (Foyle) 16.2
28 River Maigue[20] (Shannon) 15.6
29 River Main[21] (Bann) 15.4
30 River Blackwater (Boyne)[7] (Boyne) 15.08
31 River Aille[22] (Corrib) 15.0
32 Owenmore River (Mayo)[21] 14.7
33 Boyle River[7] (Shannon) 13.57
34 River Deel[7] (Shannon) 12.56
35 Mulkear River[7] (Shannon) 12.55
  • The 209 m3/s is to Limerick City (Catchment area: 11,700 km2). If the discharges from all of the rivers and streams into the Shannon Estuary (including the rivers Feale 34.6m3/s, Maigue 15.6m3/s, Fergus 25.7m3/s, and Deel 7.4m3/s)[20][23] are added to the discharge at Limerick giving a total catchment of 16,865 km2, the total discharge of the River Shannon at its mouth at Loop Head reaches 300 m3/s
    • The Three Sisters (Barrow, Nore & Suir) total flow into Waterford Harbour is 154 m3/s
    • The combined flow of the Barrow and Nore rivers is 86 m3/s before joining the river Suir near Waterford City.

See also


  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab Riverine Inputs and Direct Discharges to Convention Waters Annex V Statistical information on river catchment areas P. 70 [4]
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex ey ez fa fb fc fd fe ff fg fh fi fj fk fl fm fn fo fp fq fr fs ft fu fv fw fx fy fz ga gb gc gd ge gf gg gh gi gj gk gl gm gn go gp gq gr gs gt gu gv gw Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference)
  3. ^ a b c Dublin Marine Institute 1998: Studies of Irish Rivers and Lakes: Moriarty, Christopher
  4. ^ a b c Notes on River Basins: Page 67
  5. ^ Western CFRAM Units of Management
  6. ^ Biology and Management of European Eel p.29
  7. ^ a b c d e f g h i j k
  8. ^ a b Notes on River Basins: Page 69
  9. ^ a b Ordnance Survey (Ireland) Educational Facts
  10. ^ Shannon River Basin: Furthest sourceShannon River Basin#Furthest sources
  11. ^ Boyle River (Ireland)
  12. ^ Ask about Ireland
  13. ^ Ulster BlackwaterRiver Blackwater, Northern Ireland
  14. ^ a b European Commission Rivers Map
  15. ^ River Robe
  16. ^ Notes on River Basins: Page 68
  17. ^ Notes on River Basins: Page 64
  18. ^ Riverine Inputs and Direct Discharges to Convention Waters Annex V Statistical information on river catchment areas P. 76 (Convert 1,000m³/d into m³/s)[5]
  19. ^
  20. ^ a b c d Long-term effects of hydropower installations and associated river regulation on River Shannon eel populations: mitigation and management [6]
  21. ^ a b c d e f g h Royal Irish Academy, Atlas of Ireland (Royal Irish Academy, Dublin, 1979) Hydrology P. 23 - Rivers: Mean Discharge
  22. ^
  23. ^ SFPC Maintenance Dredging Application: Table 3-7

External links

  • Irish whitewater River Guides
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.