Rutland Water

Rutland Water
St Matthew's Church, Normanton on the water's edge
Rutland Water
LocationRutland
Coordinates52°40′N 0°40′W / 52.667°N 0.667°W / 52.667; -0.667
Lake typeReservoir
Primary outflowsRiver Gwash
Basin countriesEngland
Managing agencyAnglian Water
DesignationSite of Special Scientific Interest
Built19711975
First flooded1976
Max. length4.4
Max. width2.6
Surface area10.86 square kilometres (4.19 sq mi)
Average depth14
Max. depth34
Water volume124 million cubic metres (4.4×10^9 cu ft)
Surface elevation85
Designated14 October 1991
Reference no.533

Rutland Water is a reservoir in Rutland, England, east of Rutland's county town, Oakham. It is filled by pumping from the River Nene and River Welland, and provides water to the East Midlands. By surface area it is the largest reservoir in England, but its capacity is exceeded by that of Kielder Water in Northumberland. Its maximum depth is 33 m (108 ft).

Set in 3,100 acres (1,300 hectares) of countryside, it has a 23-mile-perimeter (37 km) track (17 mi or 27 km excluding Hambleton Peninsula) for walking or cycling. 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).

A 6 sq. mi. (1,555 hectare) area of lake and shore is a biological Site of Special Scientific Interest, and a Nature Conservation Review site. An area of 5¼ sq. mi, (1,333 hectares) is an internationally important wetland site under the Ramsar Convention, and 1½ sq. mi. (393 hectares) at the western end is managed by the Leicestershire and Rutland Wildlife Trust.