Description: The construction site is located in the new West Port Bridge on Taiwan Line 17 in Dacheng Township, Changhua County. ChiDeh transportatedn and lifted six steel bridges in the south and north directions. Since the new bridge is 82 meters long and weighs 320 tons, it needs to be transported to the old bridge deck for lifting. Due to the bearing capacity of the old bridge deck, self-propelled module trailer are used for transportation. The trailer length 60 meters, totaling 320 tire to disperse the pressure on the ground which could successfully complete the task. Two crawler cranes were used to complete the lifting task.