Rs 389-crore Bihar dam collapses ahead of inauguration; low-lying areas inundated
The dam was to be inaugurated by Chief Minister Nitish Kumar today
Rain, tremors near Mullaperiyar dam spread panic
No disaster management plan in place
Threat of dam collapse, floods in California force nearly 200,000 people to flee
Crumbling emergency spillway on Oroville Dam could unleash floodwaters onto rural communities along the Feather River