Significant delays are expected after a digger on a truck hit the Royal Road overbridge. File photo / Natalie Slade
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Significant delays are expected after a digger on a truck hit the Royal Road overbridge. File photo / Natalie Slade

A section of Auckland's North-Western motorway that was closed after a digger being transported by a truck hit an overbridge at Royal Rd has been reopened.

Police said the Royal Rd on-ramp is now open to city-bound traffic and the North-Western is open to traffic in both direction.

The Royal Rd bridge is also open but with a 30kmh speed limit to minimise structural vibration.

The digger crashed into the Royal Road overbridge at 11:44am.

- HERALD ONLINE