Skip to main content

Table 2 Total volume released on roads surveyed, total volume that need maintenance and total agriculture land lost surface amounts along 42 % and 100 % of the watershed roads network

From: Rural earthen roads impact assessment in Phewa watershed, Western region, Nepal

Inventory of soil volume losses on roads surveyed Erosion events Damaged areas
Road Agriculture land
Erosion events number Volume release (m3) Volume to remove or repair (m3) Surface buried or destroyed (m2)
TOTAL Along 42 % of the roads network 179 70133 19671 37567
Along 100 % of the roads network 426 166982 46835 89445
Event type (42 % of the roads network) Shallow soil slip 150 22469 18576 20457
Gully 16 8817 356 0
Extended shallow planar soil slide 13 38847 740 17110
Event activity (42 % of the roads network) Recent (<2 years) 72 25580 9998 22,202
Medium (>2 to < 5 years) 78 37178 5767 15,320
Old (>5 years) 29 7375 3907 45
  1. Results are also classified according to event type and event activity (for measurements on 42 % of the watershed roads network)