District Disaster Management Authority Kangra
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Floods Hazards
Floods Hazards
Floods are another from of natural disaster which the state experiences every year. Due to the diverse topography of the area, the flood problem in the state is largely isolated in Nature. High monsoon rains in the area of the Shiwalik and lower and mid Himalayan ranges cause extensive floods during rainy seasons. In the upper reaches of the Beas and Satuj valley the main problems are flash floods and bank erosion because of the steep slopes of rivers and high river flows due to heavy rains. Often the flash caused due to cloudbursts, glacial lake outbursts and temporary blockade of the river channels have been also observed. As a result of breaches in embankments and damage to various utilities such as irrigation/flood control schemes and houses are also observed.
The rivers of importance from flood damage angle are:
- River Satluj and its tributaries like Spiti, Sangle khad, Ali khad, Gambhar khad,Sir khad, and Swan river
- River Beas and tributaries like Uhl and Suketi khads.
- River Ravi and its tributaries like Siul
- River Yamuna and its tributaries like Pabbar,Giri and Bata.
Although widespread floods problems do not exist in the state because of topographical nature, continuing attention is necessary to reduce flood hazards in the state, more particularly the flash flood hazard the incidences of which are increasing causing large scale damage. The major flash floods have been tabulated as under:
Major Flash Floods in Himachal Pradesh.
Some of the devastating Floods, which caused heavy damage to Private as well as Public Property in Himachal Pradesh.
Prominent Flash Floods | History of Damage Occurred |
---|---|
8 July 1975 | Lake formed by the blockage of Satluj river due to Nathpa rock fall damaged Sanjay power house, loss of about Rs. 45 million estimated. |
(Source: Bhandari, 1988; Sah et al, 1996; Sah and Mazari 1998; Sah and Bist, 1988; Paul et al, 2000, Revenue Department, Govt. of Himachal Pradesh).