The Tyholt Tunnel is a tunnel located in Trondheim. It was opened in 1991 and is part of the city's road network. The tunnel is approximately 1.3 kilometers long and connects the areas of Tyholt and Midtbyen, which helps to ease traffic in the city center.
The tunnel is designed for car traffic and has two lanes. It is an important part of the infrastructure of Trondheim, as it provides an efficient connection between different parts of the city. The Tyholt Tunnel is also known for its special location, as it runs under Tyholtfjellet, which makes it a unique part of the city's landscape.