Padma Multipurpose Bridge Project

Table of Contents7 Assessment of Impacts/Risks for Preferred Alternative......................7-17.1 Preamble............................................................................................................................... 7-17.2 Project Related Significant Impacts ...................................................................................... 7-17.2.1 Pre-construction Stage............................................................................................... 7-17.2.2 Construction Stage..................................................................................................... 7-87.2.3 Operation and Maintenance Stage........................................................................... 7-277.3 Project Related Significant Risks ........................................................................................ 7-337.3.1 Construction Stage................................................................................................... 7-337.3.2 O/M Stage ................................................................................................................ 7-337.4 Associated, Induced, and Regional Impacts....................................................................... 7-34List of TablesTable 7-1: Project Affected People by Census type............................................................................. 7-2Table 7-2: Loss of trees by all project components.............................................................................. 7-4Table 7-3: Loss of agriculture crops by the project components.......................................................... 7-5Table 7-4: IUCN Red List and CITES species observed in the project area ....................................... 7-5Table 7-5: NOAA Criteria for Pile Driving and its Impact on Fish......................................................... 7-9Table 7-6: Comparison of Noise Levels from Pile Driving Steel Pipes through Different Methods ... 7-10Table 7-7: Quantities of materials for major components of the bridge ............................................. 7-11Table 7-8: Construction Equipment Noise Emission Levels .............................................................. 7-14Table 7-9: Vibration levels due to construction equipment and traffic at 30 m (99 ft)........................ 7-15Table 7-10: Crop production loss in the RTW right-of-way ................................................................ 7-18Table 7-11: Landuse pattern in RTW ................................................................................................. 7-19Table 7-12: Tree cut for construction of the approach roads. ............................................................ 7-20Table 7-13: Crop production loss in the Approach Road and railway right-of-way............................ 7-20Table 7-14: Existing landuse pattern along the approach road alignment......................................... 7-21Table 7-15: Noise generated from various construction equipment .................................................. 7-22Table 7-16: Tree cut for construction of bridge end facilities (FS) ..................................................... 7-23Table 7-17: Crop production loss in BEF ........................................................................................... 7-24Table 7-18: Existing landuse pattern in the BEF................................................................................ 7-24Table 7-19: Indicative emission of 500kw diesel powered generator. ............................................... 7-26Table 7-20: Predicted noise level due to the railway operation.......................................................... 7-27Table 7-21: Predicted pollutant concentrations (g/m 3 ) along the road alignment. ........................... 7-29Table 7-22: Predicted Emissions........................................................................................................ 7-29Table 7-23: GHG emission from the Project intervention................................................................... 7-30Table 7-24: Predicted noise levels (dBA) near the sensitive areas along the Project ....................... 7-30Table 7-25: Induced Traffic................................................................................................................. 7-35Table 7-26: Predicted noise level due to the railway operation.......................................................... 7-38Table 7-27: Predicted vibration level along the approach railway corridor. ....................................... 7-39List of FiguresFigure 7-1: Land loss for various project components ......................................................................... 7-37-i