Debris slide graded into flow occurred at the left side of the Munnar- Udumpalpettu road, near  Munnar Betheren Church. Unscientific slope modification for road left vertical cut with no lateral support. Surface runoff through the Munnar- Udumpalpettu ro
Near Munnar Betheren Church
Munnar- Udumpalpettu road
Retaining wall with weep holes and suitable filter medium founded on the hard rock should be constructed at the cut slope. Retaining wall with weep holes and suitable filter medium founded on the hard rock should be constructed below the road bench.
Unscientific slope modification for road leaving vertical cut with no lateral support. Absence of roadside drains resulted in surface runoff eroding the filled slope and subsequent failure.