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According to Tehsildar, Bhatwari the estimated damage to crops in Gyansu village was about Rs. 2.0 lacks and symbolic damage to 41 houses (Figure 1 [Figure omitted. See Article Image.]). Additionally, a RCC bridge with an estimated cost of about Rs. 10.0 lacks (approx.) was also damaged. According to Patwari, Barahat no relief was distributed because of the non-eligibility.
Terrain information
A detailed account of terrain information was prepared based on the field investigations. The terrain information pertaining to the precise geographical location, physiography, drainage, geology, geomorphology and landslides is given below.
Geographical location
The area under investigation covers the landslides in Gyansu and Tambakhani area of Varunawat Parvat on the northern flank of Uttarkashi town. The geographical coordinates of the major landslide of the area are given in Table I [Figure omitted. See Article Image.].
Physiography
Situated in Bhagirathi valley the township of Uttarkashi is at a height of about 1,152 meters from m.s.l and the topography of the area is ridge valley topography. The active scarp of Tambakhani slide on Varnawat Parvat on the northern flank of the Uttarkashi township is at an altitude of about 1,800 meters (approx.).
Bhagirathi valley at Uttarkashi is about 1 km wide and is characterized by a sudden change in its trend from NE-SW to E-W.
Drainage
Dendritic drainage pattern is conspicuous in Varunawat Parvat area and most of the flowslides are developing along the drainage lines. The drainage texture is medium to course and erosion is high in the proximity of drainage courses. The natural courses of drainages have been narrowed by anthropogenic activities, namely, new construction in forest colony, petrol pump, bus stand and collectorate areas.
Geology
Geologically, the township of Uttarkashi falls in a part of Garhwal Lesser Himalayas. The Main Central Thrust (MCT) passes near Sainj in the north of Uttarkashi and separates the Lesser Himalayan rocks from those of Higher Himalayas.
[3] Jain (1971) proposed the Uttarkashi Formation to include the Netala Quartzite, Lower Uttarkashi Limestone, Pokhri Slate, Upper Uttarkashi Limestone and Bareti Quartzite. [1] Agrawal and Kumar (1973) recognized in Uttarkashi Formation only the Netala Quartzite and Sartali Slates termed as Dhanari and Pokhri Slates by [3] Jain (1971, Figure 2 [Figure omitted. See Article Image.]).
Geomorphology
Six terrace levels are...