|Managing agency||Anglian Water|
|Designation||Site of Special Scientific Interest|
|Surface area||10.86 square kilometres (4.19 sq mi)|
|Designated:||4 October 1991|
Rutland Water is Anglian Water's drinking water reservoir in the county of Rutland, England, just east of the county town Oakham. It was known as Empingham Reservoir during its construction and until its official opening in 1976. The centre of its dam is at British national grid reference SK942078. It provides a reserve supply of water in the driest and most densely populated quarter of the United Kingdom and is one of the largest artificial lakes in Europe. By surface area it is the largest reservoir in England, but by capacity it is exceeded by Kielder Water.
Set in 3,100 acres (12.5 km2) of countryside, it has a 25-mile (40 km) circular track for walking and visitors may hire a bicycle. Since the water is drawn upon when needed, the relative areas of land and water vary a little but the flatter parts of the lake margin are enclosed by banks so that the wetland nature reserve is maintained (grid reference SK886073).
Its construction by damming the Gwash Valley near Empingham was completed in 1975. It flooded six or seven square kilometres of the Gwash valley as well as the side valley at the head of which lies Oakham. Nether Hambleton and most of Middle Hambleton were demolished and their wells were plugged as part of the ground preparation. Their neighbouring village of Upper Hambleton survived, and now sits on a peninsula within the lake known as the Hambleton Peninsula. The Gwash makes a net input to the lake but its flow downstream is maintained. Most of the stored water is extracted from the River Welland at grid reference TF017060, between Tinwell and Stamford and from the River Nene upstream from Peterborough, a city which is a major user of the water.
Because much of the valley is clay, material for the dam was extracted from pits dug within the area that would be subsequently flooded. The clay dam is 115 feet (35 m) high, and around 1,300 yards (1,200 m) long. At its base, it is up to 890 yards (810 m) wide, and the finished structure has been landscaped to blend in with the environment, even when viewed from Empingham, the nearest village.
Upper Hambleton and the remnant of Middle Hambleton, including the Old Hall, are now known simply as Hambleton and are to be found on a long peninsula in the middle of the lake: land which was formerly a ridge between the two valleys in which the lake now lies. The few houses of Normanton avoided flooding although its church did not. The lower part of the building was supported against water damage so that its upper part could be used to present the story of the construction of the reservoir to the public. Some funerary monuments from it can be seen at Edenham church, Lincolnshire.
The reservoir is used not just for water storage, but is a popular sports centre - as well as water sports such as sailing visitors enjoy fishing, walking and cycling along a 25-mile (40-km) perimeter track. A pleasure cruiser, the Rutland Belle, carries people around the lake. Birdwatching brings visitors from far afield. The butterfly centre is now closed.
Large areas of wetland (as well as several small woods) at the western end of the lake form a nature reserve, managed by Leicestershire and Rutland Wildlife Trust. The area is designated a Special Protection Area of international importance for its wintering populations of Gadwall (some 4% of this species’ European population) and Shoveler. It is home to the Anglian Water Bird Watching Centre. Every August, the centre is the venue for the British Birdwatching Fair. Other birds found here include Lapwing, Coot, Goldeneye, Tufted Duck, Pochard, Teal, Wigeon, Cormorant, Great Crested Grebe, Little Grebe and, most notably, Osprey, which were re-introduced to the area during 1996.
The lake itself is stocked with Brown Trout and Rainbow Trout, but there is a large head of coarse fish populated by water pumped in from the River Welland and River Nene, species include Roach, Bream, Pike, Zander, Perch, Eel and Carp.
The Anglian Water Birdwatching Centre, located in Egleton, features a gifts shop operated by the Leicestershire and Rutland Wildlife Trust. The Centre includes the Rutland Environmental Education Centre, exhibits, and windows overlooking the wetlands.
The Lyndon Visitor Centre is located on the reserve's south shore. There are exhibits, bird viewing windows, trails and hides.
- "East Midlands Attractions". Retrieved 2007-09-06.
- "The Heritage of Rutland Water". Rutland Local History & Record Society. p. 5. Retrieved 2011-03-17.
- "Rutland Sailing Club". Retrieved 28 October 2010.
- "Rutland Osprey Project". Retrieved 2012-03-06.
- SSSI citation
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