Waka Kotahi NZ Transport Agency advises of the following closures for motorway improvements. Work delayed by bad weather will be completed at the next available date, prior to Friday, 7 July 2023.Unless otherwise stated, closures start at 9pm and finish at 5am.NORTHERN MOTORWAY (SH1)Northbound lanes between Silverdale off-ramp and Orewa on-ramp, 2 July (approx. 10:00pm to 5:00am)Silverdale northbound on-ramp, 2 JulySouthbound lanes between Oteha Valley Road off-ramp and Greville Road on-ramp, 4-6 JulyOteha Valley Road southbound on-ramp, 4-6 JulyNorthbound lanes between Greville Road off-ramp and Oteha Valley Road on-ramp, 3 July (approx. 9:30pm to 5:00am)Greville Road northbound on-ramp, 3 JulyTristram Avenue southbound off-ramp, 2 JulySOUTHERN MOTORWAY (SH1)Southbound lanes between Greenlane off-ramp and Mt Wellington Highway on-ramp, 6 July (approx. 11:00pm to 5:00am)Greenlane southbound on-ramp, 6 July (approx. 10:00pm to 5:00am)Tecoma Street southbound on-ramp, 6 July (approx. 10:00pm to 5:00am)Ellerslie-Panmure Highway southbound on-ramp, 6 July (approx. 10:00pm to 5:00am)Southbound lanes between Mt Wellington Highway off-ramp and East Tamaki Road on-ramp, 4-5 July (approx. 10:00pm to 10:00pm)Mt Wellington Highway southbound on-ramp, 4-5 JulyPrinces Street southbound on-ramp, 4-5 JulyHighbrook Drive southbound on-ramp, 4-5 JulySouthbound lanes between Takanini off-ramp and Drury/SH22 on-ramp, 6 JulyTakanini southbound on-ramp, 6 JulyPapakura southbound on-ramp, 30 June & 1-8 July (24/7)Northbound lanes between Papakura off-ramp and Takanini on-ramp, 6 JulyPapakura (Diamond) northbound on-ramp, 6 JulyPapakura (Loop) northbound on-ramp, 6 JulySouthbound lanes between Mercer off-ramp and Mercer on-ramp, 3-4 July (approx. 10:00pm to 5:00am)Northbound lanes between Mercer off-ramp and Mercer on-ramp, 3-4 July (approx. 10:00pm to 5:00am)Hampton Downs southbound off-ramp, 2 July (approx. 8:00pm to 12midnight)Hampton Downs southbound off-ramp, 3 & 5 July (approx. 8:00pm to 5:00am)Hampton Downs southbound on-ramp, 2 July (approx. 8:00pm to 12midnight)Hampton Downs southbound on-ramp, 3 & 5 July (approx. 8:00pm to 5:00am)Hampton Downs northbound on-ramp, 2 July (approx. 11:30pm to 5:00am)Hampton Downs northbound on-ramp, 4 & 6 July (approx. 8:00pm to 5:00am)Hampton Downs northbound off-ramp, 2 July (approx. 11:30pm to 5:00am)Hampton Downs northbound off-ramp, 4 & 6 July (approx. 8:00pm to 5:00am)Southbound lanes between Te Kauwhata off-ramp and Te Kauwhata on-ramp, 2 July (approx. 8:00pm to 5:00am)Northbound lanes between Rangiriri off-ramp and Te Kauwhata on-ramp, 3-4 July (approx. 8:00pm to 5:00am)NORTHWESTERN MOTORWAY (SH16)Northbound lanes between Hobsonville Road off-ramp and Brigham Creek Road Roundabout, 3 JulySH16 northbound to SH18 eastbound link, 3 JulyLincoln Road northbound off-ramp, 2 JulyLincoln Road northbound on-ramp, 3-6 JulyTe Atatu northbound off-ramp, 3 JulyGreat North Road westbound off-ramp, 2-6 July (approx. 9:00pm to 6:00am)St Lukes Road eastbound off-ramp,4-5 July (approx. 10:00pm to 5:00am)Eastbound lanes between St Lukes Road off-ramp and SH1/SH16 links, 6 July (approx. 10:00pm to 5:00am)St Lukes Road eastbound on-ramp, 6 JulySH16 eastbound to SH1 northbound link, 6 July (approx. 10:00pm to 5:00am)SH16 eastbound to SH1 southbound link, 6 July (approx. 10:00pm to 5:00am)SH16 eastbound to SH16 (Port) eastbound link, 6 July (approx. 10:00pm to 5:00am)UPPER HARBOUR MOTORWAY (SH18)Eastbound lanes between Tauhinu Road off-ramp and Albany Highway on-ramp, 2 July (approx. 10:00pm to 5:00am)Westbound lanes between Greenhithe Road off-ramp and Tauhinu Road on-ramp, 2 July (approx. 10:00pm to 5:00am)Greenhithe Road eastbound on-ramp, 2 JulySquadron Drive eastbound on-ramp, 2 JulyEastbound lanes between Hobsonville Road off-ramp and Squadron Drive on-ramp, 3 JulyHobsonville Road eastbound on-ramp, 3 JulyTrig Road eastbound on-ramp, 3 JulyBrigham Creek Road eastbound on-ramp, 3 JulySOUTHWESTERN MOTORWAY (SH20)Southbound lanes between SH20/SH20A links and Kirkbride Road on-ramp, 2-4 JulySH20 southbound to SH20A southbound link, 2-4 JulySH20 northbound to SH20A southbound link, 2-4 JulyMassey Road northbound on-ramp, 5 JulyMassey Road southbound on-ramp, 6 JulyMassey Road northbound off-ramp, 6 JulyGEORGE BOLT MEMORIAL DRIVE (SH20A)Northbound lanes between Kirkbride Road off-ramp and SH20 link, 2-4 JulySH20A northbound to SH20 northbound link, 2-4 JulyKirkbride Road northbound on-ramp, 2-4 July