Watch the big bridge over the Karapiro Gully get built, see all the big machines in action and learn about safety.
The above video is a fun look at all the large machines used on the Cambridge section of the expressway.
This time-lapse video shows the early stages of building the Karapiro Viaduct. The very tall brown posts getting whacked into the ground are piles.
Members of the project team explain how they are getting the job done.
Another time-lapse video. Steel beams are lifted by cranes and put in place to make the top of the bridge.
The project team talks about work on the top of the bridge and plans for planting trees in the Karapiro Gully.
Two roading experts explain how the Waikato expressway is designed to reduce injury if drivers make a mistake.