Derwent Valley Water Board
The Derwent Valley Water Board was constituted by the to supply the cities of Derby, Leicester, Nottingham and Sheffield, and the county of Derbyshire, with water impounded by a series of reservoirs along the upper reaches of the [River Derwent Reservoir (Derbyshire)|Derwent, Derbyshire|River Derwent] in the Peak District of Derbyshire.
The board's works included the following reservoirs:
- Howden, built 1901-1912, capacity, formed by a masonry dam high and long.
- Derwent, built 1902-1916, capacity, formed by a masonry dam high and long.
- Ladybower, built 1935-1945, capacity, formed by an earth embankment high and long.
- River Ashop Abstraction and Ashop to Derwent Aqueduct
- River Noe Abstraction and Noe to Ladybower Aqueduct
- Bamford Water Treatment Works