Environmental assessment on segment of corridor 10A passing through Rajiv Gandhi National Park, Nagarahole
Consulting Engineering Services Ltd., New Delhi | India International Infrastructure Engineers Ltd. | Scott Wilson | Project Co-ordinatingConsultancy Services (PCC)
This is an environmental assessment for the Karnataka State Improvement Project which upgrades roads, identifies negative environmental impacts and proposes measures to mitigate them. Impacts from location include changes in gravity flow irrigation, a rise in the water table, extensive deforestation, and improper road drainage systems. To mitigate these impacts, raise the height of roads to prevent contamination, establish deep cut drains, pave the shoulders to keep them free from vegetative growth, and restrain truckers from overloading. Impacts due to road design will be alleviated as follows: to arrest traffic pollution, absorb noise, and provide an alternative fuel source, trees will be replanted on roadsides. During construction borrow pits will be restored and dressed to create a slope consistent with the level of adjoining land. Maintaining earthen drains and limiting construction activities for bridges and culverts to the dry season will help reduce soil quality deterioration and the resulting water pollution. Disposing of solid and liquid wastes, and stream courses and drainage will help maintain water quality. To control dust, asphalt and hot mix plants will be located away from inhabited areas; trucks will be covered; and machinery and equipment will be maintained. During the operational phase, emission checks will reduce pollution, planting will help prevent surface run-off, and accidents involving hazardous cargo will be offset by an emergency response system.
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