Design work to four-lane Johns Rd section SH 1 on Christchurch Western Corridor nears completion 21 July 2011 12:00 am | NZ Transport Agency The NZ Transport Agency (NZTA) expects to finish design work to four-lane State Highway (SH 1) from The Groynes to Sawyers Arms Road section of Christchurch's Western Corridor by the end of this month.
