Friday, March 12, 2010

MULLAPERIYAR DAM

MULLAPERIYAR DAM-TO BE OR NOT TO BE-
Lot of hue & cry was raised on the stability of the Dam and also the dispute on the sharing of water between the neighboring states. A purely technical matter should not have been taken to that level of thinking by the Politicians who may not be aware of the damage it can cause if not remedial action is taken in rebuilding the fatigued structure adopting latest Engineering methods to avoid further damage to the dam. The Dam built more than a century back has lived its designed life. This structure is fatigued and if allowed to continue in such condition it may cause disastrous situation to the people of the neighboring areas.
Now to safe guard against this dangerous situation we have to take immediate steps to construct a new dam at the same site or elsewhere. The construction of the new dam, at a new site downstream will necessitate evacuation of the people from the catchment area and other attended difficulties.
To avoid this difficulty, it is suggested that we build the new dam at the existing site butting against the old dam with the same configuration but of latest design. Also the design must consider the pressure of the impounding water as if the exiting dam is not THERE. The top level of the new dam may be slightly proud of the existing road level. The old dam will not be demolished or disturbed during or after the construction of the new one.
In case the new dam is constructed on the downstream side, in addition to the inundation of the areas on the downstream side, free flow of water will be obstructed by the old dam..
Therefore the authorities may think it over and decide on this burning issue early to avoid any calamity …

Abraham Mangalath IRSE. (Retd)

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