Truck Ban Imposed on Weak Dannevirke Bridge

Dannevirke Bridge Restrictions and Testing Findings

Routine testing conducted in June alongside more recent detailed investigations revealed that the 103-year-old Rawhiti Bridge is in significantly poorer condition than expected. According to the Tararua District Council, age-related deterioration has impacted both the structure and supporting beams. Andrew Desmond, network manager for the Tararua Alliance, acknowledged that the changes arrive as a last-minute adjustment for commuters, noting that engineers advised restricting the route to light vehicles as soon as practical. Tests identified accelerated cracking and low concrete strength in parts of the bridge, leaving it vulnerable to trucks, heavy commercial vehicles, and heavy haulage units.

Traffic Impacts and Alternative Routes for Dannevirke Commuters

Rawhiti Street and its bridge serve as a popular alternative route to Dannevirke’s main street, typically carrying around 970 vehicles each day. Out of that total, roughly 70 vehicles are estimated to be heavy trucks that must now follow an alternate route. To prepare motorists for the changes, temporary electronic signs will be installed at both ends of the bridge by Wednesday, ahead of permanent measures implemented by the council. These restrictions aim to slow further deterioration while the Tararua Alliance investigates a long-term solution and prepares a business case for funding from NZTA.

Broader Infrastructure Pressures in the Tararua District

The restrictions on Rawhiti Bridge follow a similar move less than a month ago, when the council placed a 10km/h speed and weight limit on the 97-year-old Alfredton Bridge near Eketāhuna after finding it could not hold more than 3.5 tonnes. According to Local Democracy Reporting, heavy vehicles must already take detours around Alfredton Bridge due to comparable structural issues.