the present constructed motorway generally follows along the route of this early designation. further evidence of the ministry of works intentions can be seen on the "flood-free" section of sh1 near henley on the taieri plains, 35 km south of dunedin, where the two-lane road has a 2.5-metre shoulder on the northbound side and a standard 0.5-metre shoulder on the southbound. this two-lane road was constructed in the early 1970s as the northbound lanes of a motorway, with the intention that separate southbound lanes would be constructed in the future.