River Ouse, Sussex
View looking north towards Cliffe at high tide from Southease swing bridge
|Counties||West Sussex, East Sussex|
|Towns/Cities||Slaugham, Lindfield, West Sussex, Newick, Isfield, Barcombe, Lewes, Newhaven|
|- location||Lower Beeding, West Sussex, UK|
|- elevation||85 m (279 ft)|
|- location||Newhaven, East Sussex, UK|
|- elevation||0 m (0 ft)|
|River Ouse, Sussex route map|
The river rises near Lower Beeding and runs eastwards into East Sussex, meandering narrowly and turning slowly southward. A number of tributaries join it near the village of Isfield, and more at Barcombe Mills, where it is used by Southern Water along with neighbouring Barcombe Reservoir, and there are many weirs and bridges. Just north of this, the Anchor Inn is on the banks of the river, and canoes can be hired from here. Continuing on from Barcombe, the Ouse really starts to meander (leaving several ox-bow lakes) as it reaches Hamsey, where the meander has been cut short by a canal creating Hamsey Island, home to St. Peter's Church, which is situated on a mount. Then the river flows through the town of Lewes, where it has been converted considerably over history. Three bridges cross it at Lewes: Willey's Bridge (a small footbridge opened in 1965), the Phoenix Causeway (a larger road bridge named after the extinct Phoenix Ironworks), and Cliffe Bridge (which is much older). After Cliffe the Winterbourne stream flows into the Ouse and the main river is banked on the west by the Heart of Reeds. The Ouse courses southeast past Glynde, where the tributary of Glynde Reach gushes into it; and then passes Rodmell, Southease (where there is a locally famous bridge) and Piddinghoe, finally reaching Newhaven, where it splits industrial Denton Island from the mainland and provides an important harbour in the Port of Newhaven. It then flows into the English Channel, surrounded on either side by two long breakwater piers.
The Ouse is one of the four rivers that cut through the South Downs. It is presumed that its valley was cut during a glacial period, since it forms the remnant of a much larger river system that once flowed onto the floor of what is now the English Channel. In the warmer interglacials the lower valley would have flooded; there are raised beaches 40 metres (Goodwood-Slindon) and 8 metres (Brighton-Norton) above present sea level. The offshore topography indicates that the current coastline was also the coastline before the final deglaciation, and therefore the mouth of the Ouse has long been at its present latitude.
Inundation and drainage
The behaviour of the Ouse and the conditions in its valley have been determined by its exit to the English Channel between Seaford and Newhaven. Eastwards longshore drift has built up and continuously replenished a shingle spit (shoal) at the mouth of the Ouse. In periods when the Ouse has been relatively unimpeded the river has drained the Lewes Levels. In periods when the spit has obstructed the mouth of the river, the river valley has been inundated.
At Domesday (1086), the Ouse valley was probably a tidal inlet with a string of settlements located at its margins. In later centuries the Ouse was draining the valley sufficiently well for some of the marshland to be reclaimed as highly prized meadow land. The outlet of the Ouse at Seaford provided a natural harbour behind the shingle bar.
However, by the 14th century the Ouse valley was regularly flooding in winter, and frequently the waters remained on the lower meadows through the summer. In 1422 a Commission of Sewers was appointed to restore the banks and drainage between Fletching and the coast, which may indicate that the Ouse was affected by the same storm that devastated the Netherlands in the St Elizabeth's flood of 1421. Drainage became so bad that 400 acres (1.6 km2) of the Archbishop of Canterbury's meadow at Southerham were converted into a permanent fishery (the Brodewater) in the mid-15th century, and by the 1530s the entire Lewes and Laughton Levels, 6,000 acres (24 km2), were reduced to marshland again.
Prior Crowham of Lewes Priory sailed to Flanders and returned with two drainage experts. In 1537 a water-rate was levied on all lands on the Levels to fund the cutting of a channel through the shingle bar at the mouth of the Ouse (below Castle Hill at Meeching) to allow the river to drain the Levels. This canalisation created access to a sheltered harbour, Newhaven, which succeeded Seaford as the port at the mouth of the Ouse.
The new channel drained the Levels and much of the valley floor was reclaimed for pasture. However, shingle continued to accumulate and so the mouth of the Ouse began to migrate eastwards again. In 1648 the Ouse was reported to be unfit either to drain the levels or for navigation. By the 18th century the valley was regularly inundated in winter and often flooded in summer.
- the Ouse was straightened at various points;
- new drainage dykes were dug;
- a western breakwater was constructed at Newhaven to arrest longshore drift and so cut off the supply of shingle to the spit.
In 1787, William Jessop was asked to survey the river with a view to extending navigation right up to Slaugham. Three years later the Upper Ouse Navigation Act was passed, enabling construction upon the navigation to begin. However, the initial estimates of cost were soon exceeded, and work slowed. Eventually, about 1812, the canalisation of the Ouse was completed, and the river was navigable from Lewes up to Balcombe, West Sussex, the navigable part of the river terminating at Upper Ryelands Bridge. The navigation totalled 22 miles (35 km) in length, plus a 3/4 mile branch to Shortbridge, and featured 19 locks.
Trade along the Ouse Navigation consisted mostly of lime, chalk, manure, aggregates and coal. Whilst in 1801 there were 51 barges registered as trading on the river (21 of which worked the river above Lewes), the navigation was never a huge commercial success. During the 1840s, as railways proved to be a cheaper and faster method of transporting goods, attempts were made to attract more trade by reducing tolls, but this had little effect. The Ouse Valley Viaduct, built in 1841, had 11 million bricks transported along the Ouse from Holland for its construction. and by 1868 all trade above Lewes had ceased, although boats continued working on the Lower Ouse to Lewes right up to the 1950s.
Today, the remains of most of the old locks are still visible, although all are now slowly deteriorating. The Sussex Ouse Restoration Trust is promoting renovating the navigation.
Ecology and wildlife
There is at present a lot of research into the presence and effects of organic and inorganic pollutants in the Sussex Ouse. The nature of the river is that sediment in high-flow areas is absent, with the exception of the Denton Island area. In October 2000 the Ouse and its tributary the River Uck flooded, placing areas of the river towns Lewes and Uckfield under water. Lewes Brooks is a Site of Special Scientific Interest to the south of Lewes and the west of the river.
The river is known for the unusually large Sea Trout that migrate up the river twice a year to spawn. The river also contains large Pike and more recently large Carp (both to weights in excess of 30 pounds). Other species include Barbel, Roach, Dace, Rudd, Minnow, Perch, Chub, Bream and Tench. Recently Pumpkinseed have shown up in small numbers and since 2008 a few Catfish have appeared in the river at and upstream of Lewes. The tidal stretches also contain Flounder as far inland as the tidal limit, Bass upstream to Lewes, and Mullet.
Today the Ouse is managed by the Environment Agency and is utilised as a source of drinking water and as a conduit for treated sewage as well as providing drainage for the surrounding area. It has reverted to its tidal state up to Barcombe Mills and its banks have been raised in an attempt to stop flooding. From Barcombe Mills to the sea the river has long posed a problem with flooding, as was so forcefully demonstrated in 1960, and more recently in October 2000.
The Ouse Summer Raft Race is held annually, and organised by the Lewes & District Round Table. Competitors construct their own rafts and paddle down the river, from Lewes to Newhaven. At Lewes and Southease, the rafters are pelted by crowds on the bridge and riverbank with eggs, flour, seaweed, and water.
- Rivers of Great Britain
- Canals of Great Britain
- History of the British canal system
- Media related to River Ouse, Sussex at Wikimedia Commons
- "Ouse River Definition". The Free Dictionary Online. Retrieved 26 May 2010.- derives from its Celtic name from uds, "water,"
- Woodcock, A., 2003: The archaeological implications of coastal change in Sussex. pp1-16 in Rudling, D., (ed.), The Archaeology of Sussex to AD2000. Heritage, University of Sussex.
- Brandon, P. and Short, B., 1990: The South-East from AD 1000. Longman.
- The Conservation Studio, Cirencester (2007). "Piddinghoe Conservation Area Appraisal". Retrieved 2009-01-26.
- Thomas Walker Horsfield, Gideon Algernon Mantell, 1824: The History and Antiquities of Lewes and Its Vicinity. J. Baxter.
- "River Ouse Navigation, Sussex". Retrieved 2007-10-09.
- Body, Geoffrey (1989). Railway of the Southern Region. Patrick Stephens. ISBN 1-85260-297-X. p.141.
- "History of the Sussex Ouse Navigation". The Sussex Ouse Restoration Trust. Retrieved 2007-10-09.[dead link]
- "Future Plans". Sussex Ouse Restoration Trust. Retrieved 2011-10-31.
- Sussex Industrial Archaeology Society page with information on Southease Bridge and railway
- New York Times, "On This Day": Mrs. Woolf's Body Found
- "Raft Race". Lewes & District Round Table website. Retrieved 2007-10-14.