Work on gully link starts


Work is un­der way on the Kenepuru con­nec­tion for Trans­mis­sion Gully.

David Low, chief ex­ec­u­tive of the Welling­ton Gate­way Part­ner­ship that is build­ing the high­way, said reg­u­lar users of State High­way 1 just south of Porirua would no­tice the clear­ance work had be­gun.

The main earth­works for the ac­cess to build the bridge that will come down next to Porirua Au­tocrash in Kenepuru Dr would start in the next few weeks, he said.

Con­struc­tion of that link road is ex­pected to be com­pleted by late 2019.

Low said in­te­grat­ing the new Trans­mis­sion Gully link with Kenepuru would be chal­leng­ing.

‘‘We’ve done sig­nif­i­cant mod­el­ling on traf­fic move­ments and flows that sup­port the de­sign process,’’ he said.

‘‘De­signs of both the bridges [for Kenepuru Dr and one over the main trunk rail­way line] and earth­works have to take into ac­count SH1, the rail cor­ri­dor and Porirua Stream.

‘‘We have to work around a live traf­fic en­vi­ron­ment and en­sure there’s no per­ma­nent lane clo­sures through­out con­struc­tion.’’

Low said the ter­rain on the eastern side of SH1 was steep and ex­ten­sive earth-mov­ing was re­quired. There could be re­duced speeds in Kenepuru Dr as the link was com­pleted, he said.

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