NZ Transport Agency Waka Kotahi

SH25/SH25A Thames-Coromandel

10 May 2024


Overnight closures on SH25 at Hikuai bridge

State Highway 25, south of Tairua, will be closed overnight to all traffic for 5 nights between 8.00pm and 6.00am from Sunday 19 May.

This is to allow for essential maintenance and repairs to the single lane Hikuai Stream bridge, just south of Tairua. 

Affected road users will need to detour via SH25, looping through Coromandel township.While this is essential maintenance work, we do appreciate this road closure involves a lengthy detour and will be disruptive.

Work includes digging out and replacing capping beams - components that span the full width of the road at each end of the bridge.

Steel plates will be placed over these excavations, and a temporary speed restriction will be in place, allowing traffic to cross safely during the day.

We’ll also be doing some further maintenance during this closure, including resurfacing the eastern approach to the bridge and repairs to the bridge deck.

This work is weather dependent - we will provide an update if dates need to change.

We explored the option of opening the road for a short period each night to allow convoys of traffic to pass, however this would impact work progress and extend overall disruption as additional night closures would be required.

We are working with emergency services to ensure they can be accommodated if required.



SH25 Recovery works progress

Work to stabilise 2 of the 3 slip faces on SH25 at Ruamahunga Bay (pictured above) is finished and our team is now focusing on the third and final face. We expect this work to continue through to July.

Helicopters are still being used on a regular basis to deliver equipment and supplies to the top of the slope, with the next delivery on Tuesday 14 May. This will require a series of short road closures so the helicopter can safely operate over the road and will be done across the middle of the day.

Elsewhere around the SH25 loop, work is now finished at the underslip at Wharekaho, Kereta, and initial works at Te Kouma and Pumpkin Hill. The road is back to its full 2-lane width through these sites.

Teams are now working on repairs at Whiritoa Hill, and at second sites at Te Kouma and Pumpkin Hill. Stop/go traffic management is in place at each of these sites.

Elsewhere across the region, teams are also working on repairs on SH2 in the Karangahake Gorge and on SH27 at Kaihere.
As we move into the wetter winter months, our focus will turn to drainage and culvert repairs at numerous locations around the peninsula. Work that involves significant earthworks will need to pause during that time but will begin again in earnest as we move into spring and summer.