NZ Transport Agency Waka Kotahi advises of the following closures for motorway improvements. Work delayed by bad weather will be completed at the next available date, prior to Friday, 26 April 2024. Unless otherwise stated, closures start at 9pm and finish at 5am.NORTHERN MOTORWAY (SH1)Orewa southbound off-ramp, 21 AprilNorthbound lanes between Oteha Valley Road off-ramp and Silverdale on-ramp, 25 AprilOteha Valley Road northbound on-ramp, 25 AprilOnewa Road southbound on-ramp, 25 AprilShelly Beach Road southbound off-ramp, 25 AprilFanshawe Street southbound off-ramp, 25 AprilCENTRAL MOTORWAY JUNCTION (CMJ)Southbound lanes between Fanshawe Street off-ramp and Hobson Street on-ramp, 21-22 April (approx. 10:00pm to 5:00am)SH1 southbound to SH16 eastbound (Port) link, 21-22 April (approx. 10:00pm to 5:00am)SH1 southbound to SH16 westbound link, 21-22 April (approx. 10:00pm to 5:00am)SH16 eastbound to SH16 eastbound (Port) link, 21-22 AprilSOUTHERN MOTORWAY (SH1)Khyber Pass Road southbound on-ramp, 21-23 AprilRedoubt Road southbound on-ramp, 22-23 AprilSH1 southbound to SH20 northbound link, 22-23 April (approx. 10:00pm to 5:00am)Southbound lanes between Takanini off-ramp and Drury/SH22 on-ramp, 22-23 & 25 AprilTakanini southbound on-ramp, 22-23 & 25 AprilPapakura southbound on-ramp, 22-23 & 25 AprilNorthbound lanes between Drury/SH22 off-ramp and Takanini on-ramp, 22-23 & 25 AprilPapakura (Diamond) northbound on-ramp, 22-23 & 25 AprilPapakura (Loop) northbound on-ramp, 21-23 & 25 AprilPapakura southbound off-ramp, 24 AprilNorthbound lanes between Drury/SH22 off-ramp and Papakura on-ramp, 21 AprilDrury/SH22 northbound on-ramp, 21-23 & 25 AprilDrury/SH22 northbound off-ramp, 24 AprilPioneer Road northbound off-ramp, 19-26 April (24/7)Dragway Road northbound off-ramp, 25 April (approx. 10:00pm to 5:00am)NORTHWESTERN MOTORWAY (SH16)Te Atatu Road (Diamond) southbound on-ramp, 21-25 AprilNorthbound lanes between Great North Road off-ramp and on-ramp, 21-22 April (approx. 10:00pm to 5:00am)Great North Road northbound on-ramp, 21-22 April (approx. 10:00pm to 5:00am)SH16 westbound to SH20 southbound link, 21-22 April (approx. 10:00pm to 5:00am)UPPER HARBOUR MOTORWAY (SH18)Albany Highway eastbound on-ramp, 21 April (approx. 7:30pm to 5:00am)Albany Highway eastbound on-ramp, 22 & 25 AprilAlbany Highway westbound off-ramp, 21 April (approx. 7:30pm to 5:00am)Albany Highway westbound off-ramp, 22 & 25 AprilSOUTHWESTERN MOTORWAY (SH20)Northbound lanes between Hillsborough Road off-ramp and Maioro Street on-ramp, 22 April (approx. 10:00pm to 5:00am)Dominion Road northbound on-ramp, 22 AprilHillsborough Road northbound on-ramp, 22 AprilNorthbound lanes between Neilson Street off-ramp and Hillsborough Road on-ramp, 21 April (approx. 10:00pm to 5:00am)Neilson Street northbound on-ramp, 21 AprilNorthbound lanes between Massey Road off-ramp and Rimu Road on-ramp, 23 AprilCoronation Road northbound on-ramp, 23 AprilSH20 northbound to SH20A southbound Link, 23 AprilMassey Road northbound on-ramp, 23 AprilGEORGE BOLT MEMORIAL DRIVE (SH20A)Northbound lanes between Kirkbride Road off-ramp and SH20 northbound link, 23 AprilKirkbride Road northbound on-ramp, 23 April