Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search


Bailey bridge installed on SH4 in Paraparas

Wanganui Regional Office Media Release

30 June 2004

Bailey bridge installed on SH4 in Paraparas

Transit New Zealand will tomorrow install a Bailey bridge on State Highway 4 north of Aberfeldy in the Paraparas.

SH4 will be closed between 9.30 am and 2.00 pm while the bridge is installed near Hawkin Road, approximately 30 kilometres north of Wanganui.

Transit regional manager Errol Christiansen said the bridge would be used at the site of a large slip that occurred during storms in February.

“Transit’s contractors have made a number of attempts to stabilise the site over the last four months, but the persistent wet weather has continually hampered efforts to reinstate the road. It has become clear that the best way to manage the site is to install a Bailey bridge and leave further reinstatement work until dryer weather during summer,” he said.

The 39 metre-long, 62 tonne Bailey bridge will be constructed off-site at a roadside area nearby and trucked and craned into location to minimise the time the road is closed.

“Had the bridge been constructed where required, the assembly would have required a road closure of at least three days. By constructing the bridge off-site and transporting it in, a road closure of only four to five hours is required,” MrChristiansen said.

Mr Chrsitiansen said as well as being the most cost-effective way of managing the site, installing the Bailey bridge would ensure the road remained open to all road users. The cost to install and remove the Bailey bridge is around $40,000.

“This is a small cost when compared to the cost to the community of having the road closed as it was in February.

“The site is particularly difficult to manage. There is a stream about 30 metres below road level and the amount of water flowing in it varies considerably at this time of year.”

Mr Chrsitiansen estimated the full cost of repairing the site, which would involve stabilising the toe of the slope with large rocks and then filling above with compacted fill material, would be $270,000.

The bridge is to be transported from the assembly site to its final location using a special transport trailer and truck unit from Auckland. This unit has a 24-axle trailer with all the wheels being able to be steered. The axles are at 2.0m centres and the whole trailer can be hydraulically raised and lowered. The trailer has a load capacity of 250 tonne.

When the bridge is transported to where it is to be used, it will be lifted off the special trailer and placed in position using cranes owned by the local companies Ian Roebuck Crane Hire and Emmett Brothers Ltd.

TNZ’s local state highway maintenance contractor, Works Infrastructure, is constructing site works and bridge approaches for this bridge.

Bailey bridges

Originally developed by the British Army and commonly used by various other armed services around the world, Bailey bridging is a modular system that utilises prefabricated standardised components. Bailey bridges can be erected in a number of different configurations using only light equipment and predominantly non-specialised labour. The system is often used in emergency situations to rapidly restore access where roads or bridges have been washed out by floods.

Transit New Zealand has a large stock of the modular sections held in readiness, to be used in situations such as this current site. Following the February storm earlier this year, a number of Bailey bridges were erected to restore road links.

Bailey bridge components are owned by Transit New Zealand but managed and erected by contractors, Eastbridge Ltd. from Hawkes Bay.


© Scoop Media

Parliament Headlines | Politics Headlines | Regional Headlines


Scoop Images:
Dame Patsy Reddy Sworn In As Governor-General

This morning Dame Patsy Reddy was sworn in as the New Zealand Realm’s 21st Governor-General. The ceremony began with a pōwhiri to welcome Dame Patsy and her husband Sir David Gascoigne to Parliament. More>>


Ruataniwha: DOC, Hawke's Bay Council Developer Take Supreme Court Appeal

The Department of Conservation and Hawke's Bay Regional Investment Company (HBRIC) are appealing to the Supreme Court over a conservation land swap which the Court of Appeal halted. More>>


With NZ's Marama Davidson: Women’s Flotilla Leaves Sicily – Heading For Gaza

Women representing 13 countries spanning five continents began their journey yesterday on Zaytouna-Oliva to the shores of Gaza, which has been under blockade since 2007. On board are a Nobel Peace Laureate, three parliamentarians, a decorated US diplomat, journalists, an Olympic athlete, and a physician. A list of the women with their background can be found here. More>>

Gordon Campbell: On The Key Style Of Crisis Management

At Monday’s post Cabinet press conference Key was in his finest wide- eyed “Problem? What problem?” mode. No, there wasn’t really a problem that top MPI officials had been at odds with each other over the meaning of the fisheries policy and how that policy should be pursued... More>>


Mt Roskill: Greens Will Not Stand In Likely Post-Goff By-Election

“The Green Party’s priority is changing the Government in 2017, and as part of that we’ve decided that we won’t stand a candidate in the probable Mt Roskill by-election... This decision shows the Memorandum of Understanding between Labour and the Green Party is working." More>>


Wellington: Predator Free Capital Plan

Wellington City Council (WCC), the Greater Wellington Regional Council (GWRC) and NEXT Foundation, today announced a joint collaboration to make Wellington the first Predator Free capital city in the world. More>>


Gordon Campbell: On Judith Collins’ Efforts At Self Correction

Thousands of prisoners currently in prison may be entitled to an earlier release than expected – and compensation – because Corrections has incorrectly calculated their term of imprisonment. Unless of course, the government buries its mistakes by changing the law and retro-actively getting itself off the hook… More>>


More Justice & Corrections

Get More From Scoop



Search Scoop  
Powered by Vodafone
NZ independent news