Transmission Lines along NJ Turkpike

When I drive north up the NJ Turnpike, I notice a very long stretch of
what appears to be very high voltage lines.  Does anyone know the
answer to the following:

How much voltage are these lines carrying?  It looks as if there are
between 20-30 ceramic insulators holding these wires. 

What power station is responsible for sending power down these lines,
and is the power going upstate or towards southern NJ?  (Source --
Destination?)

Also, does Manhattan get served by these lines?  I am assuming not,
since NJ was lit up while much of New York went dark during the last
large blackout.  

Where does Manhattan get its power?

Thanks!