4. description of the environment - Gujarat Pollution Control Board

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Final Feasibility Report Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 4.2.2 Secondary Data Collection VOLUME III: ENVIRONMENTAL IMPACT ASSESSMENT Secondary data collection has been collected primarily on regional environmental and social features from various Government Agencies/Institutions and through literature reviews. Such information includes Hydrogeological Atlas of Gujarat, Central Ground Water Board. Information on climate available from IMD data, information on soil & geology has been obtained from available maps (from National Atlas & Thematic Mapping Organisation -NATMO) and also from respective websites. For Socio-economic profile of the influence area along the project corridor, the database for analysis has been taken from Census of India (1991 & 2001) and other secondary sources. 4.3 LAND ENVIRONMENT 4.3.1 Physiography and Terrain The project region is located in Rajkot and Junagadh district in Gujarat. Rajkot district is situated in the central part of the Saurashtra Peninsula. It lies between the parallels of latitude 21°31’ and 23°10’ and the meridians of longitude 70°1’ and 71°30’. Rajkot district is a part of Kathiawar Peninsula and is sub-divided into five sub-micro regions such as Maliya Coastal Plain, Rajkot Alluvial Plain, Rajkot Stony –Waste Land, Bhadar River Plain and Vinchhiya Upland. The project corridor falls in the Bhadar River plain. The eastern part of the region is above 200 metres while the western part has an altitude of 100 metres above M.S.L. The general slope of the region is towards south-west. The district is bounded on the west by Junagadh district. Junagadh district is situated at Saurashtra region and form part of the Kathiawar peninsula. It lies between the parallels of latitude 20°41’ and 21°41’ and the meridians of longitude 69°56’ and 71°13’. It is sub divided into four sub-micro regions namely, Junagadh coastal plain, Bhadar, Ojat and Harna river plain, Girnar hills and Junagadh Gir forested Region. The elevation of the region falling in Mangrol, Manavadar, Keshod, Malia and Patan-Veraval talukas varies between 5 metres and 52 metres above the M.S.L in the Junagadh Coastal Plain. Some parts of Mangrol, Manavadar, Keshod, Malia, Patan-Veraval, Vanthali, Junagadh talukas falls in the Bhadar, Ojat and Harna River Plain which elevates between 45 metres and 241 metres above M.S.L. The proposed alignment traverses through fertile plain terrain along its entire length. The physiography of the project area is depicted in Figure 4-1. 4-2
Final Feasibility Report Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 PHYSIOGRAPHY ELEVATION (in metres) Above 600 450 - 600 300 - 450 150 - 300 100 - 150 50 - 100 10 - 50 Below 10 Sea SLOPE (in metres per km) More than 600 300 - 600 150 - 300 80 - 150 4.3.2 Geology Buffer Zone (Upto 15 km from corridor) Project Corridor Taluka boundry 20 - 80 10 - 20 Porbandar Less than 10 Ranavav Arabian Sea 5 0 5 10 15 Kilometre VOLUME III: ENVIRONMENTAL IMPACT ASSESSMENT Upleta Manavadar Vanthli Mangrol Jam Kandorna chorwad Dhoraji Junagarh Maliya Jetpur Somnath Figure 4-1: Physiography of the Project Area Malia Miyana Padadhari Wankaner Rajkot Lodhika Kotda Sangani The project region in the Rajkot district falls in Bhadar River Plain. The geological structure of this region is composed of Deccan Trap and Trap Dykes. The geological structure of Junagadh district consists mainly of Alluvium, blown sand in the Junagadh Coastal Plain. Small tracts of Dwarka beds, Nari and Gaj Series, Sub-Nummulitic Beds, Deccan Trap and Inter-Trappean Beds are also observed in this region. It has Oethids-Aquepts and Orthents-Ochrepts types of soil cover. Talala Morbi Gondal Una Jasdan 4-3
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4. description of the environment - Gujarat Pollution Control Board

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