Porirua and Kāpiti Coast drivers will face several overnight closures and lane changes on State Highways 1, 58 and 59 from Saturday as NZ Transport Agency Waka Kotahi rolls out maintenance and upgrade works across the network.
The works run from February 28 to March 6 and are weather dependent.
On State Highway 59 at Paekākāriki, the northbound on-ramp to State Highway 1 will be closed 24 hours a day from 11.59pm Monday until 3.30pm Friday for weighbridge upgrade works.
Drivers travelling north are advised to use alternative routes and allow extra time.
Between Beach Road and Paekākāriki Link Road, an altered lane layout will be in place day and night from 9am Monday for the same project.
In Plimmerton, stop-go traffic controls will operate between Plimmerton roundabout and Acheron Rd from 9.30am to 3.30pm, Monday to Friday, for a watermain upgrade.
Further north in Pukerua Bay, road users can expect night-time disruptions. An altered lane layout will be in place at the southern end of Coast Rd from 7pm to 5.30am on Monday and Wednesday for paving. Stop-go controls will also operate south of Gray St from 7pm to 6am, Monday to Thursday, for drainage and barrier renewals.
On Transmission Gully, the Waitangirua northbound on-ramp will be closed 24 hours over the weekend, reopening at 7am Monday, for pavement reconstruction.
Northbound lanes in Waitangirua will also close from Saturday to 5am Tuesday for paving, with further lane closures on Thursday night for barrier removal.
Southbound lanes through Waitangirua will close from Monday until 7pm Wednesday for drainage works, with another closure on Thursday night.
In Wellington, the Ngauranga southbound off-ramp will close from 9pm to 4.30am on Wednesday and Thursday nights for paving.
On State Highway 58 between Judgeford and Flightys Rd, stop-go controls will be in place from 7pm to 5.30am on Sunday and Monday for project line marking. An altered lane layout remains in place day and night through to Friday.
At Pāuatahanui Bridge, west of the roundabout, stop-and-hold traffic management will operate between 8am and 4pm, Monday to Friday, during peak school times while crews work on the clip-on footbridge and connecting paths.
NZTA says motorists should follow traffic management instructions and check its website for updates before travelling.