Padma Multipurpose Bridge Project

Step 6: Prioritization and categorization of impacts Prioritization is based on the impact value (from step-5) An environmental component having the highest impact value among all will be the firstpriority Categorization is the grouping of impacts based on impact value such asNegative Impacts:Yellow category or low negative components: -1 to -5Pink category or moderately negative components: impact value: - 6 to -10Red category or highly negative components when impact value > - 10Positive Impacts:Light Green category or low positive components: 1 to 5Dark Green category or moderately positive components: impact value: 6 to 10Blue category or highly positive components when impact value > 1014. A detailed calculation matrix of impact values computed following the six steps prescribed inFigure 4-3 is given in Annex 4-2. A summary of the Annex 4-1 showing only impact values ofenvironmental components are given in Annex4-3. The impact values are colored according to thecolor code given in Step 6 of Figure 4-3.15. Based on the output of Annex4-1 to 4-3 on interaction matrix with impact scores (& colorcoding), key impacts (both positive and negative) are identified. Gist of the high and moderatesignificant environmental components that need to be given attention while preparing detailedimpact assessment and management plan are given in Table 4-1.Table 4-1: Description of Prioritized Environmental ImpactsFirst Priority Environmental Components and associated Project Activities (High Impact)Land Acquisition and ResettlementSignificant land acquisition and resettlement is required for the project. This will affect the income,and livelihood as well as social integrity.Assessment of impactsPre- constructionConstructionOperation &MaintenanceA high negative impact due to land acquisition and resettlement.About 954 ha of land acquisition from 13,592 households (76,211persons) will be required for implementation of the project. About4,975 households (26,692 people) will be involuntarily resettled.However, there will also be a high positive impact since all theaffected people will be shifted to ‘Resettlement Sites’ that cater toall infrastructure facilities including environmental sanitation andhealth facilities.Limited impacts since minimal land acquisition and resettlement isanticipated during project implementation if there are some minorchanges in the project design during implementation.Associated developments such as road network development andinduced development such as industrialization will induce negativemedium impacts.Fisheries/Aquatic LifeFisheries production from the river and floodplains are of the high economic importance to thecountry. The Padma river supports the life several important aquatic species such as dolphin andhilsa.Assessment of impactsPre- constructionMedium negative impact due to filling of 61 ha floodplain for4-6