Number of single-lane bridges on New Zealand roads

Single lane bridges: bridges where there is only a single lane.
Speed restriction bridges: bridges where there is a speed restriction (but no weight restriction).
Timber bridges: bridges made out of timber.
Weight restriction bridges: bridges that have a weight restriction. Some of these bridges may also have a speed restriction.

This data is about bridges that can be used by motor vehicles. Pedestrian bridges are excluded.

At URL provided, select 'Data' in the table row corresponding to Infrastructure > Physical statistics - bridges'.

This dataset provides information about the number and length of bridges within Road Controlling Authority areas, each Region and Territorial Authority in New Zealand.