PennDOT is working hard to finish up several key construction projects before the weather turns nasty.

There are six key projects going on this weekend, including a few which will continue for weeks to come.

The one with the biggest impact is the closing of the inbound Squirrel Hill Tunnels Friday night through Monday morning. 

We've got a map to show you which areas to avoid, along with links to more information about the individual projects.

Good luck!