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 24, March 2023..

Unless otherwise stated, closures start at 9pm and finish at 5am.

NORTHERN MOTORWAY (SH1)

• Southbound lanes between Waiwera off-ramp and Silverdale on-ramp, 20 & 23 March
• Orewa southbound on-ramp, 20 & 23 March
• Millwater southbound on-ramp, 20 & 23 March
• Northbound lanes between Silverdale off-ramp and Waiwera on-ramp, 19 & 23 March (approx. 10:00pm to 5:00am)
• Orewa northbound on-ramp, 19 & 23 March
• Silverdale northbound on-ramp, 19 & 23 March
• Southbound lanes between Oteha Valley Road off-ramp and Upper Harbour Highway on-ramp, 19 March
• Oteha Valley Road southbound on-ramp, 19 March
• Greville Road southbound on-ramp, 19 March
• Upper Harbour Highway southbound on-ramp, 21 March
• Upper Harbour Highway northbound off-ramp, 20 & 22 March
• Onewa Road southbound on-ramp, 20-21 March (approx. 8:00pm to 5:00am)
• Shelly Beach Road southbound off-ramp, 19 & 22-23 March
• Shelly Beach Road southbound off-ramp, 20 & 21 March (approx. 8:00pm to 5:00am) 

CENTRAL MOTORWAY JUNCTION (CMJ)

• SH16 eastbound to SH1 northbound link, 19-23 March (approx. 10:00pm to 5:00am)
• SH16 eastbound to SH1 southbound link, 19-23 March (approx. 10:00pm to 5:00am)
• SH16 eastbound to SH16 eastbound (Port) link, 19-23 March (approx. 10:00pm to 5:00am) 

SOUTHERN MOTORWAY (SH1)

• South Eastern Highway (SEART) southbound off-ramp, 22 March
• Southbound lanes between Papakura off-ramp and Drury/SH22 on-ramp, 19-23 March
• Papakura southbound on-ramp, 19-23 March
• Northbound lanes between Ramarama off-ramp and Papakura on-ramp, 19-23 March
• Drury/SH22 northbound on-ramp, 19-23 March
• Ramarama northbound on-ramp, 19-23 March
• Southbound lanes between Mercer off-ramp and Mercer on-ramp, 20-21 March (approx. 10:00pm to 5:00am)
• Northbound lanes between Mercer off-ramp and Mercer on-ramp, 20-23 March (approx. 10:00pm to 5:00am)
• Pokeno southbound off-ramp, 22-23 March (approx. 10:00pm to 5:00am)
• Pokeno southbound on-ramp, 22-23 March (approx. 10:00pm to 5:00am)
• Pioneer southbound off-ramp, 22-23 March (approx. 10:00pm to 5:00am)
• Southbound lanes between Hampton Downs off-ramp and Hampton Downs on-ramp, 19 March (approx. 10:00pm to 5:00am)
• Northbound lanes between Hampton Downs off-ramp and Hampton Downs on-ramp, 19 March (approx. 10:00pm to 5:00am) 

NORTHWESTERN MOTORWAY (SH16)

• Lincoln Road southbound off-ramp, 19 March
• Lincoln Road northbound on-ramp, 19-23 March
• Te Atatu northbound on-ramp, 20 March
• Patiki Road southbound off-ramp, 20 & 23 March
• Rosebank Road southbound on-ramp, 20-22 March
• Eastbound lanes between St Lukes Road off-ramp and SH1/SH16 links, 19-23 March (approx. 10:00pm to 5:00am) 

UPPER HARBOUR MOTORWAY (SH18)

• Westbound lanes between Paul Mathews Drive and Albany Highway on-ramp, 19 & 23 March 

SOUTHWESTERN MOTORWAY (SH20)

• Dominion Road northbound off-ramp, 22-23 March (approx. 10:00pm to 5:00am)
• Southbound lanes between Walmsley Road off-ramp and Massey Road on-ramp, 19 & 23 March (approx. 10:00pm to 5:00am)
• Walmsley Road southbound on-ramp, 19 & 23 March
• Southbound lanes between SH20/SH20A Links and Landing Drive, 20 March
• SH20 southbound to SH20A southbound link, 20 March
• SH20 northbound to SH20A southbound link, 20 March 

GEORGE BOLT MEMORIAL DRIVE (SH20A)

• Kirkbride Road southbound on-ramp, 20 March
• Northbound lanes between Landing Drive and SH20 Links on-ramp, 21-22 March
• Kirkbride Road northbound on-ramp, 21-22 March