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A $5 million upgrade of the rail bridge across the Opihi River near Temuka is on track for completion by October.
KiwiRail spokeswoman Faith Thumath said the project has been successful so far and the work has had no impact on rail services.
As the depth of the river had increased over time, the piles on the bridge had been scoured out and work on replacements started in January.
Aerial shot taken in January showing work on the South side of the Opihi River railway bridge near Arowhenua.
"While there have been a couple of high weather events in the river, overall the weather has been kind and it is still on track for completion in October.
READ MORE: Bridge undergoing upgrade
"So far, 16 of the total 30 concrete piles have been completed for the 15 piers which will be replaced.
"The first complete new pier is scheduled to be finished next week."
The new concrete piles have been bored about 19 metres below the river bed level. Thumath said the new piers will be founded much deeper in the ground, making them better able to withstand flood and debris loadings.
The 512 metre bridge is about two kilometres south of Temuka. It was built in 1932, replacing the original bridge which was constructed in the late 1800s.
Two piers on the bridge were replaced in 2001 and 2013 following flood damage. The project involved jacking up the bridge onto temporary supports.
KiwiRail said it is working closely with Environment Canterbury and Te Rūnanga o Arowhenua to minimise any impact on the environment.
This article first appeared on www.stuff.co.nz
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