Reverb only occurring at the entrances of tunnels

As the title states, I only hear reverb during the first roughly 30 feet of any entrance to any tunnel. Perfect example is Utah. Every tunnel has this issue. I played it on my friends laptop and it had reverb throughout the whole tunnel. I'm fully updated, cleared cache and all that jazz. What else can I try?

 

Do all of your audio equipment have the most recent drivers installed? This is actually the same thing that happened to me and updating the main speaker system drivers fixed it.

 

Tried it and didn't seem to change anything for me. Thanks for the solution, though.