Waikato

Thames-Coromandel

Work starting next week

SH25 east of Coromandel township: Overnight asphalt resurfacing will start on Monday 5 October at several sites east of Coromandel township and continue until the end of October. Roadworkers will work between 8pm and 5am to reduce daytime disruption. Stop/go traffic management and a reduced speed limit will be in place.

SH25 Whenuakite: A road rebuild will start just north of Whenuakite on Wednesday 7 October and finish on Tuesday 27 October. Work will take place between 8:30am and 5pm Monday to Friday. Stop/go traffic management and a reduced speed limit will be in place.

Work starting soon

SH2 Karangahake Gorge: SH2 through the Karangahake Gorge will close from 9am to 4pm each day, from Monday 12 to Friday 16 October for further rock removal. The closure covers a 500m section beginning near the historic rail tunnel bridge and extending towards Paeroa. Property access will be maintained up to the closure points, but vehicles will not be able to travel through the closed section. Plan to travel outside the closure times. People travelling between regions should consider using SH29 over the Kaimai Range. More information

Work underway

SH25 Coromandel recovery works: Work continues at 4 slip sites on Whangapoua Hill and another on Manaia Hill, following storm damage earlier this year. Lane closures and reduced speed limits are in place 24/7. Temporary traffic lights control traffic through the work sites. Work is expected to continue until late October.

SH25 Tairua: Construction of the new Pepe Stream Bridge is underway. Traffic management will remain in place until the project is completed in late 2027. Vehicles, people walking and people cycling can continue to cross the stream, but occasional delays are expected. More information

SH25 Ramarama Stream: Work is underway to replace the single-lane bridge just north of Whiritoa Temporary traffic lights control traffic through the site under stop/go traffic management. The new 2-lane bridge is expected to be completed in 2027. More information

SH27 Ohinekaua Stream Bridge replacement: Work continues to replace the bridge 5km south of Patetonga, with a speed restriction of 50km/h. Traffic is using a temporary single-lane bridge and a 50km/h speed limit is in place. Expect delays. The diversion is 3.2m wide and cannot accommodate over-dimension vehicles. The new bridge will be completed by the end of this year. More information

SH27 Piako River Bridge: Strengthening work continues until December, with a 30km/h speed restriction in place. Some single lane closures and stop/go traffic management may be required.

West Waikato

Work starting next week

SH23 Raglan: Road shoulder and drainage work will start on SH23 near Greenslade Road on Monday 5 October and take about 5 weeks. Crews will work from 8:30am to 5pm weekdays and some Saturdays. Stop/go traffic management and a 30km/h reduced speed limit will be in place. A full road rebuild is expected to start in mid-November and finish on Friday 4 December. More information

Work starting soon

SH39 Symes Bridge: From Sunday 11 October, Symes Bridge over the Moakurarua Stream will close to all traffic for up to 2 months. The bridge is about 16km north of Ōtorohanga. Roadworkers will replace the bridge deck and beams. The official detour for state highway traffic is via SH3 and Te Awamutu. Until the closure begins, expect periods of stop/go traffic management while scaffolding is installed and services are relocated.

SH31 Kāwhia: Enabling work will start near Te Rauamoa Road on Monday 12 October and take about 5 weeks. Crews will work from 8:30am to 5pm each day. Stop/go traffic management and a reduced speed limit will be in place. A full road rebuild is expected to start in mid-November and finish on mid-December.

SH3 Awakino Gorge closure: Upcoming overnight closures will take place from Tuesday 27 October to Thursday 5 November, between 7pm and 4am. During the work, this stretch of SH3 will be closed each night from between the rest area near the Awakino Historic Tunnel and the intersection of SH3 with Manganui Road. The road will reopen at 4am Thursday 5 November after the final closure. During the day, the road will be open, under the standard stop/go traffic management and reduced speed limits. While the road is closed, road workers will also carry out drainage maintenance. Coordinating this work with the closures will reduce the need for separate traffic restrictions and help keep drainage systems working effectively. More information

SH31 near the Kāwhia lookout: Work on an underslip near the Kāwhia lookout on SH31 is underway and completion expected late October. Crews will be working between 6am and 6pm Monday to Friday (Saturdays and Sundays may also be included as required). The road will be down to a single lane with stop/go traffic management and a 30km/h temporary speed limit in place.

SH30 near Bennydale: Work continues to repair 2 underslips near Bennydale. Crews are working from 7am to 5pm, Monday to Friday. A lane closure and stop/go traffic management are in place. Work is expected to finish in mid-October, with Saturday work if weather causes delays.

SH39 Mangati Bridge: The permanent replacement to the Mangati Bridge on SH39 between Ōtorohanga and Pirongia is now under construction. The old bridge was damaged beyond repair by flash flooding in February, with traffic currently using a single-lane temporary Acrow bridge. Traffic will continue to use the Acrow bridge until the new bridge is open to traffic in early 2027. Please drive carefully past the construction site and obey the posted speed limits.

Hamilton and Central Waikato

Work underway

SH1 Waikato Expressway – Cambridge Section: Overnight work will continue next week at the Victoria Road Interchange (Hautapu) to complete asphalting on all the ramps.
The team started the southbound ramps this week but had to adjust their programme because of the cold snap. They will be returning next week when the weather improves to complete asphalting on the ramps overnight between 8pm and 5am starting back on the southbound ramps, then the northbound. Days to be confirmed based on the weather.

During the southbound ramp closures access to Cambridge will be via the Northern Interchange (Velodrome/Cambridge West exit) or for southbound traffic wanting to leave Cambridge via SH1B, Victoria Street, Duke Street and Tīrau Road, past the Cambridge Golf Course.

During the northbound ramp closures the detour north will be via the Northern Interchange (Velodrome/Cambridge West). All northbound traffic wanting to access Cambridge will need to exit at the Cambridge Southern Interchange and enter Cambridge past the golf course.

The contractor is preparing to move into Stage 7 from 10pm Sunday 11 October (weather dependent). Stage 7 requires the closure of the southbound on‑ramp at the Cambridge Southern Interchange. All southbound traffic leaving Cambridge to travel south on SH1 will need to use the Victoria Road Interchange (Hautapu).

Crews will be working across both southbound lanes in the area. Because of the narrow worksite where 2 lanes move into one, the works will be completed at night using stop/go traffic management and temporary speed limits of 50km/h and 70km/h that will remain in place during the day. Motorists are advised to plan ahead, allow extra time for their journeys, and consider alternative routes to help ease congestion. Please take care when travelling through work sites. More information

South Waikato and Taupō

Work starting next week

SH1 Waiotaka Bridge: SH1 is fully closed 24/7 until 5am Tuesday 6 October at Waiotaka No. 2 Bridge, near the Waiotaka Scenic Reserve, between Tūrangi and Motuoapa, while we carry out critical maintenance on Waiotaka No. 2 Bridge. The closure points are at the SH1 intersections with Grace and Waiotaka roads in Tūrangi, and Korohe Road in Motuoapa. The detour is via SH41, SH32 and SH30 and will add significant time to some journeys. After the road reopens, roadworkers will remain on site until mid-October to complete the work and fully reinstate both lanes. Expect lane closures and delays. Plan ahead and allow extra travel time. More information.

Work underway

Arapuni Dam: Arapuni Road across Arapuni Dam is closed for 24-36 months while Mercury carries out major repair work on Arapuni Hydro Dam. A temporary detour route via Powerhouse Road is in place during the closure for light vehicles only including cars, motorcycles, school buses, emergency services and rigged trucks up to 8 metres. General through traffic, heavy freight/commercial vehicles and long-distance travel should detour via SH1/SH21 and SH3.

SH5 South Waikato: Work has resumed to widen SH5 near Waimakariri Road and install wide centrelines. The work covers 1.2km of SH5, extending the existing wide centrelines from Whites Road to the new SH28-Harwoods Road roundabout. Stop/go traffic management will operate 24/7 until mid-December. Minor delays are expected. More information

SH28 north of Okoroire Road: Road rebuilding is underway from 6am to 6pm, Monday to Friday. Work is expected to finish at 6pm on Thursday 29 October, weather permitting. Stop/go traffic management and a temporary 30km/h speed limit are in place. Allow up to 10 minutes of extra travel time.

SH5 east of Taupō: A road rebuild is underway on SH5 east of Taupō near Caroline Drive, between 6am and 6pm Monday to Friday. Work is scheduled to finish early to mid-December. During work hours, 2-way stop/go traffic management is in place. People travelling through the area should plan ahead and allow for delays of up to 10 minutes. A temporary 30km/h speed limit will be in place during and outside of work hours to keep everyone safe.

North Waikato

Work starting next week

Between SH2 links and Razorback Road: There will be northbound lane restrictions from Sunday 4 to Thursday 8 October between 9pm and 5am. Razorback Road northbound on-ramp will also be closed. Traffic will still be able to travel north at all times.

SH1 Springhill Road to Island Block Road: There will be a full northbound closure on Monday 5 October between 9pm and 5am. Traffic will still be able to travel north using one of the southbound lanes.