“Can you feel that slight vibration?” I ask. It’s from the constant thrum of traffic on the Waipuna Bridge.
The Waipuna Bridge isn’t just a way to cross the Tāmaki River. It’s a vital artery connecting East Auckland to the city. It opened on May 10 1974. The Waipuna Bridge made travel much easier.
Before the Waipuna Bridge existed, people relied on older, smaller bridges. Imagine the congestion. Think of the delays getting to work or seeing family.
This bridge we’re standing near wasn’t the first attempt to span the Tāmaki River. The initial bridge, opened in 1865 was known as the “Tamaki Bridge”. A section could swing open to allow boats to pass. This earned it the nickname “Panmure Swing Bridge”.
By the early 20th century, that bridge was outdated. A second bridge, the “Iron Bridge,” was built in 1916. But it faced structural problems. A third bridge opened in 1959. It was widened to three lanes in 1972.
The Waipuna Bridge became necessary. It was needed to connect East Auckland to the Southern Motorway. It rises from Millen Avenue. It connects to Waipuna Road. Then, it connects to the Southeastern Arterial Road.
The Waipuna Bridge design was by Gavin Cormack. He worked for Beca Carter Hollings and Ferner. Etude et Enterprises built the bridge.
In 2011, the Waipuna Bridge underwent strengthening work. This was to accommodate a new power line. Transpower needed to get more power to Auckland’s eastern suburbs. They ran a 220 kv power line through the bridge’s twin box girders.
Beca chose external post-tensioning for the strengthening. Fulton Hogan was the head contractor. BBR Contech installed the CMB Band Tendons. Six tendons were installed. Each was 150 meters long.
The Waipuna Bridge stands as a testament to Auckland’s growth. It shows the constant need for better infrastructure. Next time you’re stuck in traffic here, remember its history. Think about all the changes it has seen. The Waipuna Bridge is a critical piece of Auckland. It supports our daily lives.