They are being replaced like-for-like, with the lines they carry being upgraded at the same time.
Powerco had looked at several options, including refurbishing the existing towers, replacing the towers with monopoles, installing a cable underneath the river, installing cable on a bridge and moving the towers.
None of those options were found to be feasible for reasons including environmental impact (including on Te Awa o Whanganui), earthquake and flooding risk, and cost.
Workers and two cranes begin the work of replacing the tower next to Bullocks on Taupō Quay. Photo / Bevan Conley