The smell is obvious as soon as you get out of the car on Carlton Ave: the smell of animal effluent.
It's not an uncommon smell in New Zealand but it's one that the residents of Carlton Ave, near Carlton School, are getting sick of.
Chris Winchcombe has lived opposite Carlton School for 28 years and he said stock trucks were "just part of the furniture" as the street formed part of SH3.
But Mr Winchcombe said what has become problematic in recent years is stock trucks dumping their effluent on the road.
"It's an ongoing problem, and it does happen quite often. A truck will pull over to the side of the road to go to the dairy, and they'll dump their effluent on the side of the road."
A 200m-long strip of dried effluent was visible on the shoulder of the road outside Mr Winchcombe's house when the Wanganui Chronicle visited him. He said it had been there for 24 hours - but the smell was still noticeable.
He said some of his neighbours were also annoyed by the effluent.
"When it's still wet it can be really slippery. And it still smells for a long time afterwards."
Mr Winchcombe said he would like to see signs put up at the city boundaries, asking truckies not to dump their effluent.
Ross l'Anson from the New Zealand Transport Agency, which manages the state highways, said there are disposal facilities for stock effluent throughout the region. Mr l'Anson said it was the responsibility of transport operators to manage discharge.
"It may be that when a truck parks in an urban street, the truck and trailer is on a lean, that it is overflow rather than discharge."