Connecticut is rich with train and trolley history, and a lot of commuters still rely on the rail to get to the city. But before the major lines were established, building a tunnel through a mountain was a standard procedure for connecting towns. What’s left of this abandoned tunnel in Connecticut is perfect for biking and hiking, as spending time inside will expose you to cool air and give you a shady safe haven from the sun. You have to check it out!

The Steep Rock Railroad Tunnel was constructed in nine months between 1871 and 1872 in Washington Depot. You'll find it hiding within the 974-acre Steep Rock Preserve, making it an ideal place to visit for outdoorsy types looking for a truly magical hiking experience.
criana/Flickr
This was considered an extremely fast project during the time, and the fact that it was completed so quickly was deemed incredible by all involved.
The tunnel was made for the Shepaug Valley Railroad and extends 235 feet.
Steep Rock Association/Facebook
The coal miners who built the tunnel actually hailed from Pennsylvania. They used picks, dynamite, and nitroglycerin to blast through Steep Rock Ridge, creating a curved tunnel that runs directly through the ridge. This made it possible to travel from Washington Depot to New York within a day.
In the winter season, the tunnel ices over, creating a slippery walkway.
criana/Flickr
As one of Connecticut’s coolest hidden attractions, we'd recommend visiting during every season just to see the difference and to capture awesome photos. Even when the inside of the tunnel is difficult to traverse, the outside and views are still beautiful.

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The view of the path from the tunnel's entrance is like something out of a fairy tale.
criana/Flickr
But don't let this straight path fool you! The path the train followed was anything but direct, earning the motto of "the crookedest railroad east of California." However, it served its purpose as a vehicle for transporting milk and cheese into New York City.
The moment you enter the tunnel you're immersed in complete darkness.
Steep Rock Association/Facebook
Having three passenger cars, two baggage and mail cars, and 23 freight cars, it was clear that speed and trade were the primary concerns of this tunnel. So, subjecting passengers to a bit of darkness was probably no big deal — not to mention that lighted bridges were a bit of a rarity. But, this tunnel helped provide the stone for the Brooklyn Bridge. So, don't let the dark scare you. This place is anything but haunted!
A flashlight reveals the chiseled bedrock walls and stunning proof of man's labor.
criana/Flickr
Most folks agree that the strangest thing about this place is how narrow it is. You almost can't believe that a train could possibly fit! Icicles and stalactites hang from the ceiling, and small pools of water collect around the edge. You may even see some drill holes from where the dynamite was placed.
The railroad ceased operation in 1948, but that doesn't mean you can't still experience it!
criana/Flickr
This is your chance to find the light at the end of the tunnel ... literally! Walking straight through takes less than a minute, but why not linger a little longer? After all, you'll be standing in a tunnel where trains used to run and on a trail that used to be covered in tracks. Talk about a historical destination! To learn more about Steep Rock Railroad Tunnel, visit the Steep Rock Preserve's website!

This place leaves me speechless. If you liked this abandoned tunnel in Connecticut, see some more hidden gems! Or, if you just like visiting abandoned places, check out this abandoned Christian-themed park!

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abandoned tunnel in Connecticut

Elisa Regulski | March 07, 2022

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2 Tunnel Rd, Washington Depot, CT 06794, USA