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Concrete truck passing State Highway 1 intersection and Lagmhor Road.

Detour and restrictions map with highlighted work areas


Night work, Stop/Go traffic management in Tinwald

Road work is happening this Monday night 4 October and possibly also Tuesday night 5 October, on the intersection of SH1 Archibald St with Agnes St/Lagmhor Road, to test ground conditions.

The work will affect drivers and nearby residents. 

The work is planned for night-time from 10pm to 8am to minimise disruption to travel.

The noisiest work will start at approximately 10pm and take possibly two hours. 

Residents, businesses nearby and people travelling on the highway should prepare for short delays, detours and some disruption.

We apologise in advance for the inconvenience the work may cause.

Temporary traffic management will be in place, including a detour along Melcombe Street and Stop/Go signs, if required.



More work close by

Ashburton River/ Hakatere Bridge (SH1) – repair to deck after storm damage

Sunday night, 3 October to Thursday night, 7 October, 9pm to 5am. Stop/Go traffic management in place - be prepared for short delays.

The deck surface will be smoothed and reinstated after pier repairs following the end of May flood.

There will be a full closure of bridge on Sunday night 10 October, 10pm to 5am, with a detour in place. The detour route will be sign posted, but people will need to build in some extra travel time.

The repair to the damaged pier will be completed by mid-October with scour protection work under the bridge going through to the end of October.


Walnut Ave - roundabouts becoming traffic signal intersections (includes SH1)

Sunday night, 3 October to Thursday night, 7 October, 7pm to 6am.

The roundabout islands at the intersections of East and West Streets are being removed and road seal replaced.



More information


For more information on the SH1 Tinwald Corridor Improvements project, contact us at

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