In order to locate this cache you will need to visit two plaques to gather information from. The first plaque is located in Burr's Hill Park at the posted corodnates. The second plaque is high on the wall before entering the tunnel, which is rather hard to miss but just in case, coordinates for it are provided below. There are actually two plaques located on opposite sides of the tunnel, and since each plaque is identical you can use either one. Use the below information to locate the cache:
N 41° 43.1A[B-2] W 071° 17.0[C-1]D
Burr's Hill Park:
Locate the date on the bronze plaque: March 19AB.
Lester M. DeRiso Bike Path Tunnel:
Dedicated 199C.
There is also a number listed on the plaque: #94D.
The final cache is a small micro that is not winter friendly. Hope you enjoy!
If you need to, you can check your coordinates here: GeoChecker.com.