On February 9, the last piece I-shaped girder of No.15 bridge, a bridge of UF4 section of Colombian Mar2 project, was smoothly settled on an abutment, marking a successful completion of the girder erection of UF4 section in advance.

No.15 bridge of UF4 section was theconstructionposition with the highest risks in Mar2 project because safety challenges were brought to construction by many factors including a 39.97-meter-long and 2.2-meter-high girder, an 8.4% longitudinal slope, a narrow construction space and treacherous terrain. In order to reduce safety risks, the project apartment made a girder erection plan in detail, cooperated and carefully stimulated every construction part with local team to ensure a reasonable and feasible technical plan. During the construction, on the premise of smooth traffic flow on existing roads and safe conditions of staff and equipment, the project team accelerated the construction process in the dry season with little rainwater and accomplished the girder erection task in advance.

In the remaining construction tasks, the project apartmentwill further refine construction measures, plan in advance, takeprecautionary measures in the rain season and accelerate construction process to build a prosperous road for Colombia as soon as possible.