UPDATE: 11.45am – SH1 reopened after serious crash

NZ Transport Agency Waka Kotahi | 14 Apr 2026 11:48am | Canterbury

State Highway 1/Main South Road near Dunsandel has reopened after a serious crash this morning.

Road users are asked to take extra care along this route, between Burnham Road and Selwyn Lake Road.

9am – Detours in place for serious crash closure

Detours are now in place for a closure on State Highway 1/Main South Road near Dunsandel due to a serious crash this morning.

SH1/Main South Road is closed between the intersections with Burnham Road and Selwyn Lake Road.

Detours are available as follows: For southbound traffic, use SH1/Main South Road, then turn left onto Burnham Road, then right onto Bethels Road, right onto Leeston Road, right onto Selwyn Lake Road and left back onto SH1/Main South Road. The reverse applies for northbound traffic.

8am – Crash closes SH1 in Selwyn, Canterbury

State Highway 1/Main South Road is closed near Dunsandel, in the Selwyn District, after a crash this morning.

Emergency services are attending the crash at the intersection with Telegraph Road, and road users are asked to delay their journeys or use an alternative route.

An update will be provided as more information is available.