Ero­sion un­der­mines ferry ter­mi­nal

Waiheke Marketplace - - Front Page - STAFF RE­PORTER

Ero­sion of the seabed and sea­wall around Auck­land’s Ferry Build­ing re­quires $1 mil­lion re­pairs.

Divers dis­cov­ered an in­creased amount of ero­sion of the seabed and sea­wall in front of the build­ing at the bot­tom of Queen St in Au­gust, Auck­land Trans­port chief en­gi­neer An­drew Scrog­gins said on Fri­day.

A hole caused by the ero­sion was about 16 me­tres long and var­ied in depth from 0.2 me­tres to 1.2 me­tres, Scrog­gins said.

AT had been reg­u­larly mon­i­tor­ing the con­di­tion of the sea­wall due to its age. A fur­ther check on the wall two weeks ago showed ‘‘no fur­ther ero­sion’’, he said.

Re­pair work will start in about two weeks and take six to 10 weeks.

‘‘This will stop any fur­ther ero­sion,’’ Scrog­gins added.

En­gi­neer­ing firm Tonkin and Tay­lor had com­pleted a pre­lim­i­nary sta­bil­ity anal­y­sis and con­firmed that while there was no risk of im­mi­nent fail­ure.

They had rec­om­mended com­plet­ing the work as soon as pos­si­ble to pre­vent the ero­sion from con­tin­u­ing un­der the struc­ture, Scrog­gins said.

‘‘We are pro­gress­ing with de­sign and con­struc­tion plan­ning to be­gin re­pairs to en­sure we can com­plete this work prior to the busy sum­mer hol­i­days,’’ he said.

Some ferry ser­vices will be re­lo­cated but full ser­vices are ex­pected to run as sched­uled.

Re­pair work is set to be­gin in a fort­night, tem­po­rar­ily clos­ing Berth 1A and re­lo­cat­ing some ferry ser­vices for up to 10 weeks. JOHN SELKIRK/STUFF

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