A very large landslide affected the Manawatu Gorge with the first failure and subsequent road closures occurring in August 2011. The initial failure measured approximately 50m high by 100m wide. A much larger failure occurred in late September which measured approximately 200m wide and 300m high. The final volume of material removed from the site was approximately 370,000m.

Geovert were commissioned for a significant amount of slope stabilisation, rockfall protection and ground engineering work across the site over a 12 month period. Working to tight deadlines Geovert delivered this complex project safely together with the Higgins, MWH and NZTA project team to reopen this important regional highway.