Geoscience Reference
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Table 8.3 Records of the rate of road subsidence from lower Paglajhora sinking zone (By author
himself)
Years
Rate of subsidence of Hill
Cart Road from Rail Bench
Result of the subsidence
May
'
2006
No prominent subsidence
took place
Unaffected the Hill Cart Road
July
'
2007
0.75 m
Affected the Hill Cart Road
September
'
2008
1.03 m
Affected the Hill Cart Road during
continuous rainfall
August
'
2009
1.50 m
Road blockage due to lowering of road
bench by heavy monsoon rainfall
June
'
2010
5.00 m
Failure washed away the marginal
subsided part and damaged the
transport network completely
2 km length of the Hill Cart Road which is stretching along the steep north, east and
south facing slope with fragile lithological composition is heavily affected by the
down slope movement of slope materials and the subsidence of road and rail-cut
benches (Fig.
8.19
).
Fig. 8.19 Road subsidence at Paglajhora
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