New Zealand's Bridges: New Waimakariri Bridges in Christchurch by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
|March 2011 (-43.414 Degrees, 172.646 Degrees) New Waimakariri Bridge|
The Waimakariri River is quite a way south of this photo. Perhaps the owners of the Christchurch Northern Motorway wanted to provide the smallest possible grade for their bridges. Or maybe it was essential to provide a couple of roads north of the river. A braided river constantly regrades its path to the sea (as it drops sediment along its path). Perhaps long bridges were necessary over a river that periodically changes its channel.
The new Waimakariri River Bridges are precast I girder bridges on pier walls with very long bent caps. Perhaps the extra large caps are to accommodate a bridge widening at some future date?