Windhelm has also two main exits and connections to other dungeons. The Solitude system has three exits to the outskirts of the city and several others into dungeons and other buildings. The mod adds accessible sewer systems to the town of Solitude, Whiterun, Windhelm and Markarth plus small sewage tunnels to Fort Sungard and Greenwall.
I always loved that mod, glad to provide it to you too. This is not my mod, I just distribute it by open permissions granted.
