3 lanes in each direction-- with a median strip between the opposite directions...

Now that most new interstated are 4 or 5 lanes-- ( even the LIE-- the worlds largest parking lot) is getting a 4th lane , out side of NYC limits, and the NJ turnpike is 12 lanes wide-- (6 in each direction) at least, parts of it are.

(I think inselpeter, like many NY, NYC, NYSer's doesn't drive --or drive much.)