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Padma Multipurpose Bridge Project

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Annex 4-2: Impact Assessment MatrixEnvironmental Components<strong>Project</strong> Activities in Different Phases11. Air Quality 12. Surface Water Quality 13 Groundwater Quality 14. Noise Quality 15. Soil QualityInteractionWeightageDegree of ImpactShort TermLong TermPartly MitigableFully MitigableComposite Rating ValeImpact ValueInteractionWeightageDegree of ImpactShort TermLong TermPartly MitigableFully MitigableComposite Rating ValeImpact ValueInteractionWeightageDegree of ImpactShort TermLong TermPartly MitigableFully MitigableComposite Rating ValeImpact ValueInteractionWeightageDegree of ImpactShort TermLong TermPartly MitigableFully MitigableComposite Rating ValeImpact ValueInteractionWeightageDegree of ImpactShort TermLong TermPartly MitigableFully MitigableComposite Rating ValeImpact ValuePre-constructionLand acquisitionResettlement site developmentMobilization of equipments, constructionmaterials/ vehiclesClearing of sitesRemoving of top soils√ 3 -2 √ √ -1 -3 √ 4 -3 √ √ -1 -4Earth filling and compactionConstruction of civil amenities and development√ 3 -2 √ √ -1 -3 √√44-1-2√√√√-1-1-4-4√ 3 -1 √ √ -1 -3PlantationEnvironmental SanitationConstructionMain <strong>Bridge</strong>Mobilization of equipments, constructionmaterials/ vehiclesDredging of channels to bring bargesMovement of barges on the river andassociated dredgingConstruction o of sub-structure st uctu (pile driving, spoildisposal)Erection and CastingConstruction of superstructureDisposal of wastesRiver Training WorksMobilization of equipments, constructionmaterials/ vehiclesMovement of dredgesDredging for slope preparationPlacing geo-textile & rocks on the slopeConstruction of revetment/embankmentDisposal of dredge materials√ 3 2 √ 2 6√ 3 2 √ 2 6√ 3 -2 √ √ -1 -3 √ 4 -3 √ √ -1 -4√ 3 -2 √ √ -1 -3√ 3 -2 √ √ -1 -3 √ 3 -2 √ √ -1 -3 √ 4 -2 √ √ -1 -4√ 3 -3 √ √ -2 -6 √ 4 -3 √ √ -3 -12√ 3 -2 √ √ -1 -3 √ 4 -2 √ √ -1 -4√ 3 -2 √ √ -1 -3 √ 3 -3 √ √ -2 -6 √ 4 -3 √ √ -2 -8√ 3 -3 √ √ -2 -6 √ 3 -1 √ √ -1 -3√ 3 -2 √ √ -1 -3 √ 4 -3 √ √ -2 -8√ 3 -2 √ √ -1 -3 √ 3 -2 √ √ -1 -3 √ 4 -2 √ √ -1 -4√ 3 -2 √ √ -1 -3 √ 3 -3 √ √ -2 -6 √ 4 -2 √ √ -1 -4√ 3 -3 √ √ -2 -6√ 3 -3 √ √ -2 -6 √ 3 -3 √ √ -2 -6 √ 4 -3 √ √ -2 -8√ 3 -3 √ √ -2 -6 √ 3 -2 √ √ -1 -3 √ 3 -2 √ √ -1 -3<strong>Padma</strong> <strong>Multipurpose</strong> <strong>Bridge</strong> Design <strong>Project</strong>Final Report (Environmental Action Plan)Environmental Impact Assessment ReportApril 30, 2010A4.2-7

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