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, 14 July 2023. Unless otherwise stated, closures start at 9pm and finish at 5am.NORTHERN MOTORWAY (SH1)Southbound lanes between Orewa off-ramp and Silverdale on-ramp, 9-10 July (approx. 10:00pm to 5:00am)Orewa southbound on-ramp, 9-10 JulyMillwater southbound on-ramp, 9-10 JulyOteha Valley Road southbound on-ramp, 11 JulyOnewa Road northbound off-ramp, 11 July (approx. 9:30pm to 5:00am)Onewa Road northbound on-ramp, 12 JulyOnewa Road southbound on-ramp, 12 JulyStafford Road northbound off-ramp, 11 July (approx. 9:30pm to 5:00am)Shelly Beach Road southbound off-ramp, 12 July (approx. 10:30pm to 5:00am)Curran Street northbound on-ramp, 11 JulyCENTRAL MOTORWAY JUNCTION (CMJ)Fanshawe Street southbound off-ramp, 12 July (approx. 10:30pm to 5:00am)Southbound lanes between Fanshawe Street off-ramp and Greenlane on-ramp, 10-11 July (approx. 10:00pm to 5:00am)SH1 southbound to SH16 westbound link, 10-11 July (approx. 10:00pm to 5:00am)SH1 southbound to SH16 eastbound (Port) link, 10-11 July (approx. 10:00pm to 5:00am)Hobson Street southbound on-ramp, 10-11 JulySH16 eastbound to SH1 southbound link, 10-11 July (approx. 10:00pm to 5:00am)Symonds Street southbound on-ramp, 10-11 JulyWestbound lanes between Stanley Street off-ramp and Wellesley Street East on-ramp, 10-11 July (approx. 10:00pm to 5:00am)SH16 (Port) westbound to SH1 southbound link, 10-11 July (approx. 10:00pm to 5:00am)Grafton Road southbound on-ramp, 10-11 JulySOUTHERN MOTORWAY (SH1)Khyber Pass Road southbound on-ramp, 10-11 JulySt Marks Road southbound on-ramp, 10-11 JulySouthbound lanes between Greenlane off-ramp and Mt Wellington Highway on-ramp, 9 July (approx. 11:00pm to 5:00am)Greenlane southbound on-ramp, 9 July (approx. 10:00pm to 5:00am)Tecoma Street southbound on-ramp, 9 July (approx. 10:00pm to 5:00am)Ellerslie-Panmure Highway southbound on-ramp, 9 July (approx. 10:00pm to 5:00am)Northbound lanes between Papakura off-ramp and Takanini on-ramp, 10 JulyPapakura (Diamond) northbound on-ramp, 10 JulyPapakura (Loop) northbound on-ramp, 10 JulyPapakura southbound off-ramp, 12 JulyPapakura southbound on-ramp, 7-15 July (24/7)Southbound lanes between Mercer off-ramp and Mercer on-ramp, 9-10 July (approx. 11:00pm to 5:00am)Northbound lanes between Mercer off-ramp and Mercer on-ramp, 9-10 July (approx. 11:00pm to 5:00am)NORTHWESTERN MOTORWAY (SH16)Lincoln Road southbound off-ramp, 9-11 July (approx. 8:00pm to 5:00am)Lincoln Road northbound on-ramp, 11-12 JulyNorthbound lanes between Great North Road off-ramp and Patiki Road on-ramp, 9 July (approx. 10:00pm to 5:00am)Rosebank Road northbound off-ramp, 9 July (approx. 10:00pm to 5:00am)Great North Road northbound on-ramp, 9 JulySH16 eastbound to SH20 southbound link (Waterview Southbound Tunnel closed), 10 JulyGreat North Road eastbound off-ramp (Waterview Southbound Tunnel closed), 10 JulySH16 westbound to SH20 southbound link (Waterview Southbound Tunnel closed), 10 JulyGreat North Road westbound off-ramp, 11-12 July (approx. 9:00pm to 6:00am)UPPER HARBOUR MOTORWAY (SH18)Tauhinu Road westbound on-ramp, 10 JulySquadron Drive westbound off-ramp, 10 JulySOUTHWESTERN MOTORWAY (SH20)Southbound lanes between Massey Road off-ramp and Puhinui Road on-ramp, 10 July (approx. 10:00pm to 5:00am)Massey Road southbound on-ramp, 10 July