Henry's Tunnel is a tunnel located somewhere near Vicarstown.
Henry once stalled here due to it raining hard, and he not wanting to spoil his "lovely green paint". He was bricked up, but eventually let out after Gordon broke down pulling the Express.
In Adventures on Rails, in the seventeenth season it will gain another rail in the berth Henry was shut in.
- Originally, Henry was to stay bricked up forever in the tunnel. But, the publishers insisted on a happy ending with Henry being let out of the tunnel.