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Lough Neagh - Facts & Figures
Surface Area of Lough 383km2
Average depth 8.9m
Maximum depth 30m
Volume 3.45 x 109m3
Length of shoreline Approximately 125km
Maximum length 30.5km (SW-NE)
Maximum width 12.1km (W-E)
Total Lough Neagh Catchment 5750km2
LN Catchment (NI) 4450km2 (31% of Northern Ireland)
LN Catchment (ROI) 390km2
LB Catchment 910km2
Total LN & LB Catchment (NI) 5360km2 (38% of Northern Ireland)
Status Hypertrophic - 145 micrograms phosphorous per litre
Rivers Inflowing Blackwater, Ballinderry, Moyola, Six Mile Water, Main and Upper Bann are major tributaries, Glenavy and Crumlin are minor tributaries
Outflowing Lower Bann (reaching the sea at Portstewart)
Industries Past Linen, Coal, Diatomite, Willow basket making and Reed Harvesting
Present Fishing, Agriculture, Peat Extraction, Sand extraction, Water extraction, Tourism and Recreation
Commercial Navigation

Newry Canal (opened 1742, derelict 1949)

Coalisland Canal (opened 1787, abandoned 1954)
Lagan Canal (opened 1763, abandoned 1958)
Ulster Canal (opened 1841, abandoned 1931)
Lower Bann Navigation (opened 1847 and still in operation)
Upper Bann Navigation (opened 1742, abandoned 1954)
Drainage Schemes McMahon Scheme (began 1847-1858) lowered water level by 0.76m
Sheperd Scheme (1930-1942) plus 1952 and 1959. Schemes lowered water levels by 1.26m
Average-to-average lowering over 160years = 2.02m
Environmental listings and designations Area of Scientific Interest (1965) re-designated ASSI (1992)
Ramsar Site from 1973
8 Nature Reserves
Special Protection Area (from 1998)
Prime Ownership features Bed and soil, sporting rights owned and leased by Shaftesbury
Estates of Lough Neagh Ltd
Eel rights leased and Scale fishing rights owned by Lough Neagh Fishermen's Cooperative Society

 

 

More information ....
Church Island, Lough Beg Lower Bann
 
© Lough Neagh and Lower Bann Advisory Committees 2006 | Images © Lough Neagh & Lower Bann Advisory Committees Photo Library