River Stour, Dorset
|County||Dorset, Wiltshire, Somerset|
|District||Salisbury, South Somerset, North Dorset, East Dorset, Poole, Bournemouth, Christchurch|
|Towns||Gillingham, Sturminster Newton, Blandford Forum, Wimborne Minster, Christchurch|
|• location||St Peter's Pump, Mere, Wiltshire|
|Christchurch Harbour, Christchurch, Dorset|
|Length||61 mi (98 km)|
|• left||Allen, Moors River|
|River Stour (Dorset)|
The River Stour is a 61 mi (98 km) river which flows through Wiltshire and Dorset in southern England, and drains into the English Channel. The catchment area for the river and its tributaries is listed as being 480 square miles (1,240 km2).
It is sometimes called the Dorset Stour to distinguish it from other rivers of the same name in Kent, Suffolk and the Midlands. According to Brewer's Dictionary of Britain & Ireland, the name Stour rhymes with hour and derives from Old English meaning violent, fierce or the fierce one.
The source of the river is fed from greensand springs at Stourhead, in Wiltshire, where it forms a series of artificial lakes which are part of the Stourhead estate owned by the National Trust. It flows south into Dorset through the Blackmore Vale and the towns of Gillingham and Sturminster Newton.
At Marnhull the Stour is joined by the River Cale and then (two miles downstream) by the River Lydden. At Blandford Forum the river breaks through the chalk ridge of the Dorset Downs, and from there flows south east into the heathlands of south east Dorset. At Wimborne Minster it is joined by the River Allen, and at its estuary at Christchurch it is joined by the River Avon before it flows through the harbour into the English Channel.
From source to estuary, the river falls approximately 750 feet (230 m) over its 60 mi (97 km) length.
For many miles the river is followed by the route of the now disused Somerset and Dorset Joint Railway, which bridged the river four times in a 9 mi (14 km) section between Sturminster Newton and Blandford Forum.
Because much of the river's course is across clay soil, the river's waterlevel varies greatly. In summer, low water level makes the river a diverse and important habitat, supporting many rare plants. In winter, the river often floods, and is therefore bordered by wide and fertile flood plains.
A number of towns and villages in Dorset are named after the river, including East Stour, West Stour, Stourpaine, Stourton Caundle, Stour Row, Stour Provost, Sturminster Newton, and Sturminster Marshall. Sturminster Newton is famous for its water mill and town bridge, which still bears the notice warning potential vandals that damaging the bridge is punishable by penal transportation.
The river flows through a myriad of differing settings and scenery (reed bed, open water, coastal, estuarine, river, streams, lowland heath) and as such is host to species such as the pipistrelle bat, harbour porpoise, great crested newt, medicinal leech, Desmoulin's whorl snail and the starlet sea anemone.
There are many fish that live and use the river, which include; barbel, bream, chub, dace, grayling, perch, pike, roach, rudd, salmon, tench & trout. The harbour at Christchurch has also been used to land oysters, crab, lobster and cuttlefish, all of which were fished from the harbour itself. Bass and mullet are known to use the estuary for feeding and as a nursery.
Downstream of Blandford Forum, the Stour is host to an insect known as the Blandford Fly (simulium posticatum) which is known for leaving painful bites on humans. Attempts have been made to rid the fly from the area with a special spray used on the larval habitats of the fly.
Recreation and amenity
The harbour at Christchurch and the lower reaches of the Stour and the River Avon (Hampshire) are host to a multitude of marinas, boat clubs and landing stages. The River Stour is navigable as far upstream as Tuckton (where the tidal limit exists) and whilst there is a low bridge at Iford, it is possible to navigate as far as the rapids which are 0.93 miles (1.5 km) upstream of the Iford Bridge. Spring tides have been known to penetrate a further 0.93 miles (1.5 km) upstream as far as Blackwater Bridge (the A338 road). Boats can be hired from several yards and landings in the harbour and estuary area with kayaking and canoeing being popular on the river too.
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