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Table 2 Common problems of small dams in Vietnam cited by key stakeholders

Note *On the basis of fifteen participants

ID Problems of small dams in Vietnam Number of participants Percentage of participants*
1 Erosion damage 14 93%
2 Seepage 14 93%
3 Cracking 11 73%
4 Inability to store design water capacity because of silting and/or leakage 10 67%
5 Blocked spillway 10 67%
6 Inappropriately designed spillway 10 67%
7 Vandalism damage 10 67%
8 Damaged by traffic 9 60%
9 Outlet leakage 9 60%
10 Outlet broken 9 60%
11 Settlement 6 40%
12 Damage from animal burrowing 5 33%
13 Excessive vegetation and/or trees 5 33%
14 Sinkholes 3 20%
15 Slides and/or slumps 2 13%
16 Low area on the crest of dams 2 13%