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Padma Multipurpose Bridge Project

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Annex 4-2: Impact Assessment Matrix6 Fisheries/Aquatic life 7. Wildlife 8. Vegetation 9. Wetlands (Perm/ Temp)10. Char landsEnvironmental Components<strong>Project</strong> Activities in Different PhasesInteractionWeightageDegree 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/ vehicles√ 5 -3 √ √ -2 -10 √ 5 -3 √ √ -2 -10 √ 5 -2 √ √ -2 -10 √ 4 -1 √ √ -1 -4Clearing of sites√ 5 -1 √ √ -1 -5 √ 5 -3 √ √ -3 -15Removing of top soils√ 5 -2 √ √ -1 -5Earth filling and compactionConstruction of civil amenities and development√ 5 -2 √ √ -2 -10 √ 4 -2 √ √ -2 -8PlantationEnvironmental 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√ 5 3 √ 3 15√ 5 -2 √ √ -2 -10 √ 5 -1 √ √ -1 -5 √ 4 -1 √ √ -1 -4√ 4 -2 √ √ -2 -8√ 5 -3 √ √ -3 -15 √ 5 -1 √ √ -2 -10 √ 4 -3 √ √ -2 -8√ 5 -2 √ √ -1 -5 √ 4 -1 √ √ -1 -4√ 5 -2 √ √ -1 -5 √ 4 -3 √ √ -2 -8√ 5 -3 √ √ -3 -15 √ 5 -2 √ √ -1 -5 √ 5 -2 √ √ -2 -10 √ 4 -3 √ √ -2 -8√ 5 -1 √ √ -1 -5 √ 5 -2 √ √ -1 -5√ 5 -1 √ √ -1 -5 √ 5 -2 √ √ -1 -5 √ 5 -3 √ √ -3 -15 √ 4 -2 √ √ -2 -8√ 5 -3 √ √ -3 -15 √ 5 -2 √ √ -1 -5 √ 4 -2 √ √ -2 -8<strong>Padma</strong> <strong>Multipurpose</strong> <strong>Bridge</strong> Design <strong>Project</strong>Final Report (Environmental Action Plan)Environmental Impact Assessment ReportApril 30, 2010A4.2-4

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