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

Intention to Close Road - Bruce Street Hunterville 28th October

PURSUANT to Section 342 (b) and the Tenth Schedule of the Local Government Act 1974, NOTICE IS HEREBY GIVEN that, the Rangitikei District Council intends to consider closing the roads as listed below for the purpose of permitting The Hunterville Huntaway Festival (Shemozzle) on Saturday 28 October 2017.

Roads to be closed

6.00am – 6.00pm

Bruce Street – Portion of between SH1 and Hunterville School

Any person objecting to the proposals is called upon to lodge notice of his/her objection and grounds thereof in writing, before 4.00 pm, Friday 11 August 2017, at the office of the Rangitikei District Council, Private Bag 1102, Marton 4741. Objections may be shared with the event organiser.

Should the Rangitikei District Council decide to close the said roads, a public notice shall be given.

Intention to Close Road - Targa Rally 24-28 October

Targa Rally (NZ) Inc have advised the withdrawal of their application to close various roads within the Rangitikei and Manawatu Districts on 28 October 2017 due to the clash of date with the Hunterville Hunterway Festival (Shemozzle).

There is no longer any requirement for objections to be sent in by concerned parties.

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.