Dark Sun: Spirit Champions
During the riots in Tyr, a section of the wall in the Warrens was destroyed. Once the rioting was quelled the Tyrian Guard had builders brought in an fortified the wall and turned it into a temporary gate.
It’s much smaller, just wide enough to bring a small wagon through. It’s guarded at all times by a rotating shift of Tyrian Guard and people entering or exiting are checked. While it has been ordered to have this section of the wall repaired, funds are tight and so it is currently very low priority, plus it keeps more of the riff raff in the Warrens from exiting through the main exits of the city and keeps the further out of sight from the upper caste of people who would rather not mingle with the lower caste.