You'll find State Highway (NZTA) info here:

Temporary Closure of Various Roads to Vehicular Traffic

PURSUANT to, Traffic (Vehicular Traffic Road Closure) Regulations 1965, NOTICE IS HEREBY GIVEN that the Rangitikei District Council, for the purpose of Dangerous Tree Felling, with the use of a crane on the road, will close the following road listed hereunder to ordinary vehicular traffic for the period as stated

Road to be closed to ordinary vehicular traffic on Monday 18 December

8.00am to 5.00pm

Galpins Road between Property numbers 377 to 387A

All queries in regards to this are to be referred to Keith Sutherland, Project Engineer, Rangitikei District Council- 027 581 8838

Mangaweka Bridge Now Open 21 October 2016

However, the weight restriction of 3,000 axle load and 6,000 kg gross mass will remain in place.

Furthermore, a speed restriction of 10 kph and "no stopping" will apply for all vehicles.