b The Bowmer Rough Reservoir [349527] “The Derwent Valley Water Board was incorporated in 1899 with the aim of suppling water from the Upper Derwent Valley to the corporations of Derby, Nottingham, Leicester and Sheffield and construction of the Howden and Derwent Dams in North Derbyshire started in 1901/1902. At the same time the Derwent Valley Aqueduct was started, to bring water from the treatment beds at Bamford to the covered service reservoir above Ambergate - near to Bowmer Rough and Bilberry Wood. The water was brought by a series of syphons, cut-and-cover conduits and tunnels. The construction of the Bowmer Rough Reservoir started in June 1907.
To transport materials two railways were built; one, worked by a Hudswell Clark tank engine called “Crich™, brought stonc from a quarry created on the western side of the ridge which, further north, becomes the *Tors™; the other took spoil down the hill and delivered materials to build the Crich Conduit which brought water to the Bowmer Rough tunnel and then into the inlet well of the reservoir.
The reservoir in shape is a rectangle with an added semi-circle overlooking the confluence of the Derwent and Amber rivers. The rectangle is about 480 fe. by 360 ft. and the semi-circle is of radius 180 ft. The buttressed retaining wall is some 16 ft. thick at the bottom and 2 ft. 6 in. at the top and there is a dividing wall 10 ft. high about 280 ft. from the northerly wall facing Chadwick Nick. The floor is 12 in. thick concrete in a 6 to 1 Portland Cement mixture, and the roof is of reinforced concrete 4 in. thick covered with 12 in. of soil, which is grassed. The roof s supported by some 600 blue-brick pillars 2 ft. 8 in. square, spaced on a 20 ft by 16 ft. grid and supporting 20 in. by 7 '/3 in. RSJs and 6 in, by 3 in. steel channels. The depth of water from the floor to the lip of the gauge well is 23 ft. and that is 640 ft, above ordnance datum.
The capacity is 28 million gallons. The main pipeline to Nottingham, of 29 in. diameter, crosses the canal, the river, the railway and the road near the railway bridge over the A 610 near Ballbridge. The Leicester and Derby pipeline, of 40 in. diameter, crosses the A 610 near Ambergate sidings and goes on over Thackers Chase. There is an overflow pipe which runs as far as the River Amber, where it discharges, alongside the Leicester and Derby pipeline. At the peak of activity 56 men were employed on the site of the reservoir and steam cranes and rock breakers were used. Water commenced filling in June 1911 and the final construction work was completed in July 1911.
b The Bowmer Rough Reservoir [349527]
“The Derwent Valley Water Board was incorporated in 1899 with the aim of suppling water from the Upper Derwent Valley to the corporations of Derby, Nottingham, Leicester and Sheffield and construction of the Howden and Derwent Dams in North Derbyshire started in 1901/1902. At the same time the Derwent Valley Aqueduct was started, to bring water from the treatment beds at Bamford to the covered service reservoir above Ambergate - near to Bowmer Rough and Bilberry Wood. The water was brought by a series of syphons, cut-and-cover conduits and tunnels. The construction of the Bowmer Rough Reservoir started in June 1907.
To transport materials two railways were built; one, worked by a Hudswell Clark tank engine called “Crich™, brought stonc from a quarry created on the western side of the ridge which, further north, becomes the *Tors™; the other took spoil down the hill and delivered materials to build the Crich Conduit which brought water to the Bowmer Rough tunnel and then into the inlet well of the reservoir.
The reservoir in shape is a rectangle with an added semi-circle overlooking the confluence of the Derwent and Amber rivers. The rectangle is about 480 fe. by 360 ft. and the semi-circle is of radius 180 ft. The buttressed retaining wall is some 16 ft. thick at the bottom and 2 ft. 6 in. at the top and there is a dividing wall 10 ft. high about 280 ft. from the northerly wall facing Chadwick Nick. The floor is 12 in. thick concrete in a 6 to 1 Portland Cement mixture, and the roof is of reinforced concrete 4 in. thick covered with 12 in. of soil, which is grassed. The roof s supported by some 600 blue-brick pillars 2 ft. 8 in. square, spaced on a 20 ft by 16 ft. grid and supporting 20 in. by 7 '/3 in. RSJs and 6 in, by 3 in. steel channels. The depth of water from the floor to the lip of the gauge well is 23 ft. and that is 640 ft, above ordnance datum.
The capacity is 28 million gallons. The main pipeline to Nottingham, of 29 in. diameter, crosses the canal, the river, the railway and the road near the railway bridge over the A 610 near Ballbridge. The Leicester and Derby pipeline, of 40 in. diameter, crosses the A 610 near Ambergate sidings and goes on over Thackers Chase. There is an overflow pipe which runs as far as the River Amber, where it discharges, alongside the Leicester and Derby pipeline. At the peak of activity 56 men were employed on the site of the reservoir and steam cranes and rock breakers were used. Water commenced filling in June 1911 and the final construction work was completed in July 1911.