Despite facing the fury of floods every year, Bihar and Assam are among the states where legislative measures, suggested by the Centre to minimise the damage, have been pending for the past 33 years.

The model bill, prepared by the Central Water Commission way back in 1975, will empower authorities to remove dwellings from flood-prone areas.

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The bill, if implemented, will seek to replace dwellings in low-lying areas by parks and playgrounds as absence of human settlement in those areas would cut down loss of lives and property.

The CWC had circulated the model bill to all the states to help the state governments enact the legislation. Except for Manipur and Rajasthan, no state legislature has enacted the 'Model Bill on Flood Plain Zoning', sources in the Water Resources Ministry told PTI.

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Though Manipur enacted the legislation in 1978, the demarcation of flood zones is yet to be carried out. Rajasthan is yet to enforce the measure, though it has enacted the bill.

Uttar Pradesh [Images] and Bihar had initiated the process of framing the legislation a few years ago, but have not taken any further steps.

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As per the model bill, different types of buildings and utility services have been grouped under three priorities from the point of view of damage likely to occur.                                                                                   

The model bill provides clauses about flood zoning authorities, surveys and delineation of flood plain area, notification of limits of flood plains, prohibition of the use of the flood plains, compensation and most importantly removing obstructions to ensure free flow of water.

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'Priority-I' areas including defence installations, industries and public utilities such as hospitals, power houses, airports and railway stations are to be located in such a way that they are above the highest flood level in the last 100 years.

'Priority-II' areas include public institutions, government offices, educational institutions, public libraries and residential areas.

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The buildings are proposed to be above a level corresponding to a 25-year high flood level or a 10-year rainfall record with a mandatory clause that all buildings in vulnerable zones be constructed on columns or stilts.

'Priority-III' areas would include parks and playgrounds. While these would provide the city with green lungs, it would ensure that the areas most prone to floods are not populated, sources said.

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The CWC had initiated preparation of topographic maps on a 1:15,000 scale to enable state governments identify flood prone areas. But the scheme was abandoned in 1991 due to poor response from the states.