SH1 Northern Motorway closed between Oteha Valley off-ramp and Silverdale (northbound) 11 July 2024 3:07 pm | NZ Transport Agency Waka Kotahi NZ Transport Agency Waka Kotahi (NZTA) is advising motorists that the SH1 Northern Motorway is currently closed between Oteha Valley Road off-ramp to Silverdale (northbound) due to a crash.
