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Overnight motorway closures

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State highway maintenance programme for Auckland and north Waikato

If you would like to be notified by email of upcoming closures in your area sign up for email alerts:

Sign up form(external link)

Find out more about what areas we cover and what maintenance we do:

Auckland System Management - frequently asked questions(external link)

Things to know about our planned closures

  • General maintenance: Cyclic maintenance activities which includes stormwater systems cleanup, structural maintenance, various inspections, vegetation control and graffiti removal.
  • Other maintenance: activities that cannot be carried out during the cyclic closures. This includes road surface and structural replacement, and safety improvement works. These dates may be posted up to a week prior to works starting.
  • While we do our best to work on the advertised dates, these closures are weather dependant, and dates may change. For real-time information please go to Journey Planner.
    journeys.nzta.govt.nz(external link)
  • You may experience delays to your journey before the advertised time for the closure. This is because our team need to set up traffic management on the mainline and local roads such as ramp closures, lane restrictions and detour signs. However, traffic should still be able to travel along the state highway until the advertised closure time.
  • Nearby properties may experience increased noise; we apologise in advance for any inconvenience.

Monthly maintenance schedules

  • June 2025

    Date

    Area

    Location

    Details

    Mon 2 and Tue 3 June

    South Auckland

    SH1 Papakura to Takanini

    10pm to 5am

     

    Full northbound closure for general maintenance. Please detour via Great South Road to the Takanini interchange. 

    Northbound ramps and links will be closed. Please follow signposted detours.

    Wed 4 June

    South Auckland

    SH1 Bombay to Drury

    10pm to 5am

    Full northbound closure for general maintenance. Please detour via Great South Road to the Drury interchange.

    Northbound ramps will be closed. Please follow signposted detours.

    Over-dimension vehicles will be escorted through the closure. Please contact TMC to arrange.

    Thu 5 June

    North Waikato

    SH1 Nikau Road to Bombay

    9pm to 5am

    Full northbound closure for general maintenance but traffic can travel north using one of the southbound lanes.

    Northbound ramps and some SH2 links will be closed. Please follow signposted detours.

    Sun 8 June

    North Waikato

    SH1 Pokeno to Nikau Road

    (includes links to/from SH2)

    10pm to 5am

    Full northbound closure for general maintenance but traffic can travel north using one of the southbound lanes.

    Northbound ramps and links may be closed. Please follow signposted detours.

    Mon 9 June

    North Waikato

    SH1 Mercer to Pokeno

    9pm to 5am

    Full northbound closure for general maintenance but traffic can travel north using one of the southbound lanes.

    There may be limited or no access to side roads along SH1.

    Tue 10 June

    North Waikato

    SH1 Pokeno to Mercer

    9pm to 5am

     

    Full southbound closure with contraflow for general maintenance but traffic can travel south using one of the northbound lanes.

    There may be limited or no access to side roads along SH1.

    Wed 11 June

    North Waikato

    SH1 Nikau Road to Pokeno

    (includes SH1 to/from SH2 link)

    10pm to 5am

    Full southbound closure for general maintenance but traffic can travel south using one of the northbound lanes.

    Southbound ramps and some SH2 links will be closed. Please follow signposted detours.

    Thu 12 June

    South Auckland

    SH1 Drury to Bombay

    9pm to 5am

    Full southbound closure for general maintenance. Please detour via Great South Road and Mill Road.   

    Southbound ramps will be closed. Please follow signposted detours.

    Over-dimension vehicles will be escorted through the closure. Please contact TMC to arrange.

    Sun 15 and Mon 16 June

    South Auckland

    SH1 Manukau to Papakura

    (includes links between SH20 and SH1)

    10pm to 5am

    Full southbound closure for general maintenance.  Please detour via Redoubt Road, Great South Road and Beach Road.

    Southbound ramps and some SH20 links will be closed. Please follow signposted detours.

    Tue 17 June

    South Auckland

    SH1 East Tamaki Road to Manukau

    (includes links to SH20)

    10pm to 5am

    Full southbound closure for general maintenance. Please detour via Great South Road to the Manukau interchange. You will need to go to Lambie Drive to use SH20.

    Southbound ramps and some SH20 links will be closed, follow signposted detours.

    Wed 18 and Sun 22 June

    South Auckland

    SH1 East Tamaki to Mt Wellington

    10pm to 5am

    Full northbound closure for general maintenance. Please detour via Great South Road to Mt Wellington interchange.

    Northbound ramps will be closed. Please follow signposted detours.

    Mon 23 June

    North Auckland

    SH1 Silverdale to Orewa

    9pm to 5am

    Full northbound closure for general maintenance. Please detour via Twin Discovery Coast Highway to Orewa interchange.

    Heavy vehicles may need to use the old SH1 if they do not meet the weight restrictions at Grand Drive, Orewa.

    Tue 24 June

    North Auckland

    SH1 Warkworth to Silverdale

    9pm to 5am

    Full southbound closure for general maintenance. Please detour via old SH1 and Twin Discovery Coast Highway to Silverdale interchange.

    Southbound ramps will be closed. Please follow signposted detours.

    Wed 25 June

    North Waikato

    SH1 Rangiriri to Hampton Downs

    9pm to 5am

     

    Full northbound closure for general maintenance. Please detour via Whangamarino Road.

    There may be limited or no access to side roads along SH1.

    Sun 29 June

    Northwest Auckland

    SH18 Squadron Drive to Westgate

    Full westbound closure for general maintenance. Please detour via Hobsonville Road to Westgate interchange.

    Westbound ramps and link to SH16 will be closed. Please follow detour.

    Sun 29 June

    Northwest

    SH16 Brigham Creek RAB to Westgate

    Full southbound closure for general maintenance. Please detour via Fred Taylor Drive to Westgate interchange.

    There may be limited or no access to side roads along SH16.

    Mon 30 June

    Northwest Auckland

    SH18 Albany Highway to Tauhinu Road

    Full westbound closure with contraflow across the bridge for general maintenance. Please detour via Upper Harbour Highway to Tauhinu Road, where you will be directed onto an eastbound lane to travel west across Upper Harbour Bridge.

    Westbound ramps will be closed. Please follow detour.
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  • July 2025

    Date

    Area

    Location

    Details

    Tue 1 Jul

    Northwest Auckland

    SH18 Brigham Creek to Greenhithe

    Full eastbound closure for general maintenance but traffic can travel east using one of the westbound lanes.

    Eastbound ramps will be closed. Please follow detour.

    Wed 2 Jul

    Northwest Auckland

    SH16 Lincoln Road to Brigham Creek

     

    Includes SH18 Westgate to Brigham Creek

    Full northbound closure for general maintenance. Please detour via Triangle Rd, Don Buck Rd, Fred Taylor Drive and Hobsonville Road.

    Northbound ramps and links will be closed. Please follow signposted detours.

    Thu 3 Jul

    North Auckland

    SH1 Constellation Drive to Northcote Road

    Full southbound closure for general maintenance. Please detour via Constellation Drive and East Coast Road to Northcote Road interchange.

    Southbound ramps will be closed. Please follow signposted detours.

    Sun 6 Jul

    South Auckland

    SH1 Mt Wellington Hwy to East Tamaki Road

    Full southbound closure for general maintenance. Please detour via Mt Wellington Highway to East Tamaki Road southbound on-ramp.

    Southbound ramps will be closed. Please follow signposted detours. 

    Mon 7 Jul

    North Auckland

    SH1 Auckland Harbour Bridge

    Northbound lane restrictions but traffic will be able to travel in both directions across the bridge.

    Northbound ramps will be closed. Please follow signposted detours.

    Tue 8 & Wed 9 Jul

    Central Auckland

    SH1 Fanshawe Street and Greenlane interchange

    (includes SH16 links from Fanshawe Street and Auckland Harbour Bridge)

    Full southbound closure for general maintenance. Please detour via Fanshawe Street, Grafton Road, and Great South Road to Greenlane interchange.

    Centre lane restrictions on the Auckland Harbour Bridge but traffic will be able to travel in both directions across the bridge.

    Thu 10 Jul

    North Auckland

    SH1 Auckland Harbour Bridge

    Southbound lane restrictions but traffic will be able to travel in both directions across the bridge.

    Southbound ramps will be closed. Please follow signposted detours.

    Sun 13 & Mon 14 Jul

    South Auckland

    SH1 Greenlane to Mt Wellington Hwy

    Full southbound closure for general maintenance. Please detour via Great South Road to Mt Wellington interchange.

    Southbound ramps will be closed. Please follow signposted detours. 

    Tues 15 Jul

    North Auckland

    SH1 Northcote to Onewa Rd

    Full southbound closure for general maintenance. Please detour via Northcote Road, Lake Road and Onewa Road. 

    Southbound ramps will be closed. Please follow signposted detours. 

    There will also be lane restrictions on the Auckland Harbour Bridge. 

    Wed 16 Jul

    North Auckland

    SH1 Oteha Valley Rd to Constellation Dr

     

    Includes SH18 Paul Matthews Rd to Albany Hwy

    Full southbound closure for general maintenance. Please detour via Albany Expressway or East Coast Road to Upper Harbour Highway.

    Southbound ramps and links will be closed. Please follow signposted detours.   

    Thu 17 Jul

    North Auckland

    SH1 Silverdale to Oteha Valley Rd

    Full southbound closure for general maintenance. Please detour via Dairy Flat Highway, or East Coast Road and Oteha Valley Road. 

    Southbound ramps will be closed. Please follow signposted detours. 

    Sun 20 Jul

    North Auckland

    SH1 Oteha Valley Rd to Silverdale

    Full northbound closure for general maintenance. Please detour via Oteha Valley Road and Dairy Flat Highway.  

    Northbound ramps will be closed. Please follow signposted detours.

    There will be no access to bpConnect Dairy Flat.   

    Mon 21 Jul

    North Auckland

    SH1 Constellation Dr to Oteha Valley Rd

     

    Includes SH18 Albany Hwy to Paul Matthews Rd

    Full northbound closure for general maintenance. Please detour via East Coast Road to Oteha Valley Road interchange.  Detour for SH18 via Bush Road and Albany Highway

    Northbound ramps and links will be closed. Please follow signposted detours.

    Tues 22 Jul

    North Auckland

    SH1 Northcote Road to Constellation Dr

    Full northbound closure for general maintenance. Please detour via Taharoto Rd, East Coast Road to Constellation Drive interchange.  

    Northbound ramps will be closed. Please follow signposted detours.

    Wed 23 Jul

    North Auckland

    SH1 Onewa Rd to Northcote

    Full northbound closure for general maintenance. Please detour via Onewa Road, Lake Road and Northcote Road. 

    Northbound ramps will be closed. Please follow signposted detours.

    There will also be lane restrictions on the Auckland Harbour Bridge.

    Sun 27 Jul

    Southwest Auckland

    SH20 Puhinui Rd to Manukau

    Full southbound closure for general maintenance. Please detour via Noel Burnside Road and Cavendish Drive to the SH1 Redoubt Road interchange.   

    Southbound ramps and links will be closed. Please follow signposted detours.  

    Mon 28 Jul

    Southwest Auckland

    SH20 Massey Rd to Puhinui Rd

    Full southbound closure for general maintenance. Please detour via Massey Road, Buckland Road, Station Road, and Wylie Road to Puhinui Road interchange.    

    Southbound ramps will be closed. Please follow signposted detours.   

    Tues 29 Jul

    Southwest Auckland

    SH20 Rimu Rd/ Mahunga Drive to Massey Rd

    Full southbound closure for general maintenance. Please detour via Mahunga Drive and Robertson Road to Massey Road interchange.      

    Southbound ramps and links will be closed. Please follow signposted detours.

    Wed 30 Jul

    Southwest Auckland

    SH20 Maioro Street to Neilson Street

    Full southbound closure for general maintenance. Please detour via Maioro Street, Stoddard Road, Mt Albert Road, and Onehunga Mall to Neilson Street interchange.    

     

    Southbound ramps will be closed. Please follow signposted detours.   

    Please note Herd Road is not part of the recommended detour route.   

    Thu 31 Jul

    Southwest Auckland

    SH20 Neilson Street to Maioro Street

    Full northbound closure for general maintenance. Please detour via Neilson Street, Onehunga Mall, Mt Albert Road, and Sandringham Road to Maioro Street interchange.

    Northbound ramps will be closed. Please follow signposted detours.
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