Several overnight maintenance projects will be taking place near the State Highway 1 (SH1) Redoubt Road interchange in May. Motorists may experience delays when travelling through the area.

SH1 Redoubt Road: The SH1 southbound to State Highway 20 (SH20) northbound link will be closed during night-time for stormwater maintenance on the following dates: Friday 1 and Saturday 2 May between 9pm and 7am (10-hour shifts). Sunday 3 May between 9pm and 5am

Please use the Redoubt Road southbound off-ramp and detour via Redoubt Road and Manukau Station Road to SH20 Lambie Drive northbound on-ramp. 

When the closure is in place, there will also be southbound lane restrictions on SH1 near the Redoubt Road interchange. 

The team will be relining a stormwater culvert. Because this activity requires longer than the normal 8-hour maintenance shift, we will be carrying this out on Friday and Saturday night when traffic volumes are lighter. 

SH1 Redoubt Road overbridge (maintenance on local road)

There will be road closures on the Redoubt Road overbridge (local road) over SH1 to carry out bridge repairs. Full westbound closure between Diorella Drive and Great South Road from Sunday 10 to Monday 18 May between 9pm and 5am (excluding Friday and Saturday nights). Full eastbound closure between Great South Road and the Redoubt Road southbound off-ramp from Sunday 24 to Thursday 28 May between 9pm and 5am.

Please follow the signposted detours. For more details Upcoming maintenance | NZ Transport Agency Waka Kotahi.