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 19 January.Unless otherwise stated, closures start at 9pm and finish at 5am.NORTHERN MOTORWAY (SH1)Millwater northbound off-ramp, 19 January (approx. 10:30pm to 5:00am) Northbound lanes between Constellation Drive off-ramp and Oteha Valley Road on-ramp, 23 January (approx. 10:00pm to 5:00am)Greville Road northbound on-ramp, 23 JanuaryConstellation Drive northbound on-ramp, 23 JanuarySouthbound lanes between Greville Road off-ramp and Constellation Drive on-ramp, 21 JanuaryGreville Road southbound on-ramp, 21 JanuaryShelly Beach Road southbound off-ramp, 21-25 JanuaryCENTRAL MOTORWAY JUNCTION (CMJ)Wellington Street northbound on-ramp, 22-24 January (approx. 7:00pm to 5:00am)SOUTHERN MOTORWAY (SH1)Khyber Pass Road southbound on-ramp, 22-24 JanuaryEllerslie-Panmure Highway southbound off-ramp, 23-24 January (approx. 10:00pm to 5:00am)Ellerslie-Panmure Highway southbound on-ramp, 23-24 January (approx. 10:00pm to 5:00am)Ellerslie-Panmure Highway northbound on-ramp, 23-24 January (approx. 10:00pm to 5:00am)Southbound lanes between Mt Wellington Highway off-ramp and Princes Street on-ramp, 22 & 24 January (approx. 10:00pm to 5:00am)Mt Wellington Highway southbound on-ramp, 22 & 24 JanuaryEast Tamaki Road northbound off-ramp, 23-24 January (approx. 10:00pm to 5:00am)Northbound lanes between Great South Road off-ramp and East Tamaki Road on-ramp, 21 January (approx. 10:00pm to 5:00am)Te Irirangi Drive northbound on-ramp, 21 JanuaryRedoubt Road northbound on-ramp, 21 JanuarySH1 southbound to SH20 northbound link, 25 January (approx. 10:00pm to 5:00am)Redoubt Road southbound on-ramp, 25 JanuarySH1 northbound to SH20 northbound link, 25 January (approx. 10:00pm to 5:00am)Drury northbound off-ramp, 26 January (approx. 10:00pm to 5:00am)Drury southbound off-ramp, 27 January (approx. 10:00pm to 5:00am)NORTHWESTERN MOTORWAY (SH16)Great North Road westbound off-ramp, 24–25 January (approx. 9:00pm to 6:00am)UPPER HARBOUR MOTORWAY (SH18)Eastbound lanes between Albany Highway off-ramp and Paul Matthews Road, 22 JanuarySH18 eastbound to SH1 northbound link, 22-23 JanuaryAlbany Highway eastbound on-ramp, 22 JanuaryWestbound lanes between Squadron Drive off-ramp and Hobsonville Road on-ramp, 21-25 January (approx. 10:00pm to 5:00am)Brigham Creek Road westbound on-ramp, 21-25 JanuarySH18 westbound to SH16 southbound link, 21-25 January (approx. 10:00pm to 5:00am)SOUTHWESTERN MOTORWAY (SH20)Northbound lanes between Hillsborough Road off-ramp and Maioro Street on-ramp, 22 January (approx. 10:00pm to 5:00am)Dominion Road northbound on-ramp, 22 JanuaryHillsborough Road northbound on-ramp, 22 JanuaryNorthbound lanes between Neilson Street off-ramp and Hillsborough Road on-ramp, 21 January (approx. 10:00pm to 5:00am)Neilson Street northbound on-ramp, 21 JanuaryMahunga Drive southbound off-ramp, 21 & 23 January (approx. 10:00pm to 5:00am)Walmsley Road southbound off-ramp, 22-23 January (approx. 10:00pm to 5:00am)Northbound lanes between Massey Road off-ramp and Rimu Road on-ramp, 23 JanuaryCoronation Road northbound on-ramp, 23 JanuarySH20 northbound to SH20A southbound link, 23 JanuaryMassey Road northbound on-ramp, 23 JanuaryMassey Road southbound off-ramp, 23 January (approx. 10:00pm to 5:00am)Northbound lanes between Cavendish Drive off-ramp and Massey Road on-ramp, 24 January (approx. 9:30pm to 5:00am)Cavendish Drive northbound on-ramp, 24-25 JanuaryPuhinui Road northbound on-ramp, 24 January (approx. 8:30pm to 5:00am)Northbound lanes between Great South Road off-ramp and Puhinui Road on-ramp, 25 January (approx. 10:00pm to 5:00am)Lambie Drive northbound on-ramp, 25 JanuarySouthbound lanes between Lambie Drive off-ramp and SH1 links, 21 January (approx. 10:00pm to 5:00am)Lambie Drive southbound on-ramp, 21 JanuarySH20 southbound to SH1 northbound link, 21 January (approx. 10:00pm to 5:00am)SH20 southbound to SH1 southbound link, 21 January (approx. 10:00pm to 5:00am)GEORGE BOLT MEMORIAL DRIVE (SH20A)Northbound lanes between Kirkbride Road off-ramp and Rimu Road on-ramp, 23 JanuarySH20A northbound to SH20 northbound link, 23 JanuaryKirkbride Road northbound on-ramp, 23 January