No time wasted: five days to build a better bridge


Originally built in the 1960s, Barker Bridge on Ruakituri Road near Wairoa was upgraded earlier this year as part of a district-wide bridge strengthening programme funded by the Provincial Growth Fund.

The upgrade involved the removal of the old bridge superstructure and the placement of new slabs onto the existing abutments. Removal and replacement was completed in just five days.


Working with Quality Roading and Services (QRS), and from bridge design work by WSP, Lattey Group made the concrete slabs and structural steel components at their precast plant in Hastings. These were transported 180 kilometres north to the bridge site.

Lattey’s 90 ton Leibherr mobile crane was used to remove the old superstructure, and to lift and place the new precast slabs. The project was managed by Scott Dobson and Jonty Underhill at Lattey Group, with a four man team on site.


The upgrade means that the bridge is now suitable for HPMV (high productivity motor vehicles) weighing up to 65 tonnes.  Commercial vehicles previously restricted by the load bearing capacity of the old bridge, can now carry heavier loads and operate more efficiently. This is good news for commercial transport operators and the region as a whole.


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