Here ya go!
The Merritt (15) turns into the berlin turnpike when the highway section ends in meriden. Then it turns into a four lane turnpike. Just follow 15 the whole way up until newington. It's on your left coming north.
A better way is to take the Merritt north to Meriden, when it runs into I-91 take that north (exit 67 I think), follow 91 north until 5 - 15 southbound (exit 27 I think) That leads onto the berlin turnpike when the highway ends Hooters is 1/16 on the right. This bypasses the lengthy turnpike with traffic and stoplights.
See ya there,