1963: At eastern embankment at Dalwa in Nepal
1968: At western embankment at Jamalpur
1971: Collapse of Bhatania Approach Bund in Supaul
1980: In the eastern embankment in Saharsa.
1984: In the eastern embankment at Navhatta in Saharsa
1987: In the western embankment at Samani and Ghonghepur in Saharsa
1991: In the western embankment at Joginia
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/kosi-breaches
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kosi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/flood-control
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrology
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bihar