Taupō Airport has halted plans for an $800,000 runway surface repair after recent inspections revealed greater deterioration than initially anticipated, prompting concerns about potentially more extensive structural issues.

A detailed assessment conducted by aviation consultancy AECOM, commissioned by the Taupō Airport Authority (TAA), found that the main sealed runway’s condition has significantly worsened since the previous survey in 2022. The intended work, which targeted surface cracking and general wear, was deemed insufficient to improve or extend the runway’s lifespan given the current state of the pavement.

AECOM’s report concluded that applying surface treatments at this stage would not meaningfully restore the runway or prolong its operational viability. Instead, the TAA will proceed with further investigations to determine whether the damage is limited to the surface or indicative of more severe structural problems in the pumice base beneath.

To assess the runway’s condition more comprehensively, AECOM has recommended additional testing, including core sample extraction at select points along the runway and deflectometer analysis to measure load-bearing capacity and material integrity. Core sampling is expected to be carried out in July and August, with deflectometer testing tentatively scheduled for August or September, coinciding with the contractor’s availability in the North Island.

The outcome of these tests will help clarify whether the deterioration is superficial or symptomatic of underlying issues with the pumice substrate, which could lead to significant financial implications. If structural problems are confirmed, the required repairs are likely to be more extensive and costly than initially projected, though no specific estimates have yet been provided.

Originally, the runway surface treatment was to be funded equally by the Ministry of Transport and Taupō District Council. Following the findings, the TAA has recommended reallocating the previously earmarked $800,000 to the 2026/27 financial year to allow time for comprehensive investigations and planning.

According to airport management, there are currently no immediate operational or safety concerns, and flight schedules are not expected to be disrupted during the ongoing assessment period.