SC- WD section. SW 1 ) Replacement of corroded top Flange of Girders of Br. No. 239 Up of span 4x17. 19 mts at kms 190/ 37- 41 between SC- HSJ stations of SC- WD section. SW 2 ) Replacement of corroded top Flange of Girders of Br. No. 239 Dn of span 4x17. 19 mts at kms 190 38- 42 between SC- HSJ stations of SC- WD section.