Location of Carsington and the River Intake
Planning for the reservoir started in the 1960s with construction of the 35m-high dam starting in 1979. The reservoir is filled by pumping water from the River…
Portal A of the Carsington Tunnel Project
Mowlem held the contract for these tunnels and 2 '0" railways played a big part in the associated tunnel construction. The portals were identified from the…
Portal B or C? of the Carsington Tunnel Project
Portals B & C were located near Wirksworth
In the late 1980s, the Carsington Reservoir project, in the Derwent Valley north of Derby, provided endless interest…
In the late 1980s, the Carsington Reservoir project, in the Derwent Valley north of Derby, provided endless interest…
Portal D Carsington Tunnel Project
The best known, and most photographed, was Portal D. This was located just north of Ambergate, and was visible from a convenient lay-by on the A6. The…
Narrow Gauge Railway at Carsington
As usual with tunneling contracts of this type, battery locos were employed. Unusually, large 100HP Swiss SIG locos were employed, particularly from the Portal…
Cross Section of the Carsington to River Derwent Tunnel
This shows the profile of the land between Carsington on the left and the River Derwent on the extreme right. The arrows indicate the portals.
Diagram is from…
Diagram is from…
The first signs of failure at Carsington
On Monday 4 June 1984, a crack 50 mm wide, 190 meters long appeared in the upstream face, after a weekend of heavy rainfall. At this stage, construction was…
Carsington Landslip
By Thursday 7 June 1984 the full extent of the slip had occurred, as can be seen in the above photo from Geological Society of London.
It had moved…
It had moved…
Carsington Land Slip
photo taken from a screen shot of a film from the Institute of Civil Engineers (ICE) Narrated by Ian Hope STW.
Aerial photo of Carsington Dam Collapse
The arrows show the extent of the landslip, which was about 500 metres long with a maximum horizontal displacement of 15 metres.
Carsington Reservoir was…
Carsington Reservoir was…
Carsington Reservoir Landslip
The extent of the final landslip. Text below from EA/DEFRA paper: Lessons from Historical Dam Incidents:The dam had a rolled clay core with an upstream…
Before and After Sections of Carsington Collapse
The slip plane (shown red) occurred along a layer of yellow clay.
The drawing and text below is from: Geotechnical aspects of the Carsington Dam Failure, a…
The drawing and text below is from: Geotechnical aspects of the Carsington Dam Failure, a…
Revised Reservoir Design at Carsington
Text below from EA/DEFRA paper Lessons from Historical Dam Incidents:
At the beginning of June 1984, a 400-m length of the upstream shoulder of the embankment…
At the beginning of June 1984, a 400-m length of the upstream shoulder of the embankment…
Starting to Fill Carsington for the First Time
October 1991 -The Valve Tower is seen with water pumped up from the River Derwent at Ambergate. Another outlet is just visible above, but a lower one was…
Valve Tower and Overflow
There is a 22m long overflow weir to the right of the tower. At the Valve Tower, water can be drawn off at one of three levels depending on water quality but…
The Outlet tower at Carsington
view taken on the footpath at the top of the earth embankment of the dam. The new dam was designed by Babtie Shaw and Morton, a Scottish company and the same…