This is part of the highway system in NZ. Really, it is. It's on State Highway 3. The government talks about changing it somehow but it hasn't happened yet. There are still many one-lane bridges around and it makes me feel very rural and happy when we cross them.
This is how one-lane tunnels and bridges work in NZ. The driver going the direction of the black, bigger arrow has the right of way; the driver going the other way usually has a better view of the bridge/tunnel and oncoming traffic.
Friday My Town Shootout - Streets