Downer NZ Ltd : NIMT Bridges

Cheal was engaged by Downer Construction in February 2015 to provide precision engineering set out and engineering consultation for the rebuild and strengthening of seven railway bridges on the North Island Main Trunk line, north of Taumarunui.

With expert knowledge in construction set out, Cheal Surveyors managed every aspect of the civil and structural set out work, including accurately and precisely monitoring the movement of the rail track and bridges for the duration of the project. Cheal Engineers also carried out geotechnical investigations and design for crane pads required on some of the sites.

Strict health and safety compliance is required when working within a live rail corridor and Cheal’s experience and workplace health and safety system fitted well with the need to liaise and work closely with the Rail Protection Officers on each site. Daily communications and advance notices were needed when programming in field work, detailed site inductions and emergency plans were all part and parcel of this type of work environment.

Working together with Downer Engineers, Project Managers and Construction Foreman, Cheal was able to provide quality and timely survey and engineering support, with a quality assurance system that has guaranteed our client a high level of accuracy and efficiency in an ever evolving design.