Some key roads damaged by a powerful earthquake in Canterbury have reopened.
State Highway 1 at Chaney's on-ramp reopened on Monday, but the New Zealand Transport Agency says the surface is unsealed and a speed limit of 50km/h applies.
Also open is the section of road between the intersection of Travis Road, Frost Road and Anzac Avenue, and the intersection of Dyers Road and Bridge Street.
However, the road between Bridge Street and Metro Place in the suburb of Bromley remains closed for repairs to pipes serving the nearby waste water treatment plant.
A detour is available via Breezes, Cuthbert's and Maces roads.
State Highway 77 in mid-Canterbury is reopen, though a detour is in place from Glentunnel to Glenroy due to a slip which is still moving.
Meanwhile, the Heathcote underpass near the Lyttelton Tunnel could be closed for up to week due to the danger of rock falls.