Quake-proofing Karori Tunnel: Expect delays

Last updated 15:53 18/01/2012
Karori std
The Alexander Turnbull Library
Workers at the Karori tunnel during the first stage of construction, c1897

Related Links

Tunnelling for answers in Karori Tunnelling through Karori's history

Relevant offers

The Wellingtonian

Former Wellington Foodstuffs sites in limbo Owhiro Bay schools not happy with proposed camp ground site Lower speed limits in Wellington not lengthening travel time Wellington forefather back at council Fitzherbert Tce's link with Katherine Mansfield Rising rent leaves Wellington cafe's future uncertain What's On in Wellington: From October 1 Chasing sharks all in a day's work for National Geographic photographer Nicola Young hops back in time Collection combines real and fictional NZ war stories

Karori tunnel is being upgraded.

Wellington City Council is spending $1.9 million on earthquake strengthening Wellington's oldest tunnel.

Temporary traffic lights have been installed at both ends of the tunnel, in preparation for the work.

City councillor Andy Foster, who holds the transport portfolio, said the work would be likely to cause significant disruptions.

"The barrel of the tunnel itself is deemed fine from an earthquake risk point of view," he said.

"Peak-hour traffic won't be affected. But from 9.30am till about 3.30pm it will go down to one lane."

It was a "balancing act" to make sure traffic and work demands were met, he said.

"There will be significant disruption. It could potentially last up to nine months."

The first part of the work would consist of tying back the two portals, or entrances, into the rocks.

The two portals were not safe and would likely collapse in a big shake, Mr Foster said.

The second part of the work would be to reinforce the bank on the city side of the tunnel.

"A large retaining wall is being put up there.

"The bank has been progressively collapsing, and it will collapse at some point."

The $1.9m project was already in the council's budget, and the work would be partly funded by NZ Transport Agency, he said.


Related stories

Tunnels not quake safe

Tunnelling for answers in Karori

Tunnelling heaven

Ad Feedback

- The Wellingtonian


Special offers

Featured Promotions

Sponsored Content