Padma Multipurpose Bridge Project

Parameter Location Means of Monitoring Frequency Responsible AgencyImplemented By Supervised Byare engagedAir Quality (dust, Construction sites Visual inspection to ensure goodDaily Contractor CSCsmoke)standard equipment are in use anddust suppression measures(spraying of waters) are in place.Asphalt PlantVisual inspection to ensure asphaltMonthly Contractor CSCplant is located >500 m fromresidential areasMaterial storage sites Visual inspection to ensure dustsuppression work plan is beingimplementedMonthly Contractor CSCAir Quality (PM10,PM2.5, SPM, SO2,NOx, Pb)On both the banks ofriver at Mawa andJanjira side (asdirected by CSC)Noise Construction sites Visual inspection to ensure goodstandard equipment are in useConstruction sites Visual inspection to ensure earplugs are in use by the constructionworkersConstruction sites12 sites covering allthe constructionlocations (as directedby CSC)Underwater noise At a distance of 50m,250m and 500m atpier locations duringpile driving (asdirected by CSC)Surface water 12 sites coveringquality (Turbidity, bridge site, RTW, andTSS, pH, TDS, other surface watersAir quality monitoring Quarterly Contractor through anationally recognizedlaboratoryEnsure work restriction between21:00-06:00 close to the sensitivelocationsHourly, day and night time noiselevels (dB) monitoring using noisemetersNoise levels on decibels (dB) scaleover a range of frequencies whichthe level is measured (1 μP a2 /Hzfor Peak, SEL and RMS noiselevels using hydrophonesSampling and analysis of surfacewater quality.CSCExternal MonitorWeekly Contractor CSCWeekly Contractor CSCWeekly Contractor CSCQuarterlyQuarterlyQuarterlyContractor through anationally recognizedlaboratoryContractor through anationally recognizedlaboratoryContractor through anationally recognizedlaboratoryCSCExternal MonitorCSCExternal MonitorCSCExternal Monitor8-26