(The year from 1990 to 2000 has been designated the International Decade for Natural Disaster Reduction)
An ordinary river started changing its course. During the rainy season, the nearby inhabitant areas get affected from the flood water.
Life during flood period
(Prediction and safety factor can work to some extent, but cannot eliminate the problems completely)
To protect the inhabitant area from the flood water and to train the river from changing its course.
Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall.
It is a cycle composed of several phases. This includes hazard analysis, vulnerability analysis, mitigation, prediction and warning, response and recovery.
A map for rescue showing the safe areas and their routes for the flooding time should be placed in public areas. This will help the public to get to the safe place during the flood period.
Construction work of embankment, spur, launching appron will be carried out. The construction of the embankment will be in two steps. The first step will allow the flood discharge for fewer recurrence year. A berm will be left and rest portion of the embankment be carried out which will be sufficient to pass the discharge for more recurrence year (100 years). There will be turfing work in the required area. The bank can be used as the small public areas, such as, children's park, playing courts, parking area.
Embankment and Spur with crated pitching
(Embankment in multiple uses)
Rare structure (Intake for Irrigation) in the embankment for flood control
The use of Geographic Information Systems (GIS)and models can be valuable tools for analyzing the project area in terms of hazard vulnerability. Computers are used in weather forecasting and thus becoming usefull tools for disaster preparedness.