SK1383 : Subsidence at Mam Tor

taken 9 months ago, near to Barber Booth, Derbyshire, Great Britain

Subsidence at Mam Tor
Subsidence at Mam Tor
The landslide from Mam Tor originated at least 3,000 years ago and is recognised as one of the major land movements in the British Isles. The movements relate largely to periods of heavy rain.

In 1802 the Manchester & Sheffield Turnpike Company decided to by-pass the then road existing up Winnats Pass by constructing a new road at an easier gradient across the Mam Tor landslip. Since the construction of the road, major works were carried out in 1912, 1933, 1946, 1952 and 1966. On the last occasion the road was closed for six weeks.

The combination of a hot, dry summer in 1976 followed by heavy winter rains resulted in a major movement in February 1977. The 1977 movements resulted in major steps of two feet appearing in the carriageway, and further up an eight feet unsupported face was left adjacent to the uphill lane.

The road was patched and limited to a single lane over the affected area and kept open until 1979. In 1979 the road was closed to through traffic.

Mam Tor is in the centre of the photograph. A view of the broken road can be seen at LinkExternal link
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SK1383, 131 images   (more nearby )
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Date Taken
Wednesday, 25 October, 2017   (more nearby)
Saturday, 4 November, 2017
Geographical Context
Geological interest  Uplands 
Subject Location
OSGB36: geotagged! SK 1306 8348 [10m precision]
WGS84: 53:20.8832N 1:48.3169W
Camera Location
OSGB36: geotagged! SK 1317 8347
View Direction
WEST (about 270 degrees)
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Image Type (about): geograph 
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