We were integral in connecting Wellington to the growing economy centres of the Kapiti Coast/ Horowhenua regions and the wider North Island.

Over 12km of PKS Civil Culverts, ranging from DN300 to DN2500, were supplied to the Transmission Gully Project to be installed as culverts under the main highway alignment. The contractor found that the long lengths resulted in less joints and less risk posed to the culverts under the main alignment.

On the project, there were six major culverts that were designed to the NZTA Bridge Manual and required an FEA (Finite Element Analysis) modelling to be carried out on each individual pipe section to determine selection of the correct Stiffness Nominal (SN) class for pipes that were installed. The culverts are installed near many earthquake fault lines, and at varying depths, the culverts are required to support the earth structure and State Highway constructed directly above.