Lincoln to Franconia, New Hampshire I93 2 lane freeway

[ethanman62187]

Once anyone approaches this, why is it 2 lanes?  The speed limit of this is just reduced to 45 MPH.

[agentsteel53]

Once anyone approaches this, why is it 2 lanes?  The speed limit of this is just reduced to 45 MPH.

the real question is - if no one approaches it, does it remain two lanes? 

if a two-lane highway is built in the forest...

[rickmastfan67]

ethanman62187, please do some research on your own.  Questions like this are easily found by searching on Wikipedia or Google (Google is your friend in cases like this).  Creating several threads is NOT necessary on different subjects (in reference to the threads about I-95's speed limits in NH and PA).  Threads like this (and those speed limit ones) are better lumped into the state threads (NH & PA).  Anyways, I'll leave this thread unlocked for now, but please DO NOT make me regret it.

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This was because of the "Old Man of the Mountain".

1988 – A 12-mile (19 km) stretch of Interstate 93 (which also runs jointly with U.S. Route 3 through the notch) opens below Cannon Mountain. The $56 million project, which took 30 years to build, was a compromise between the government's desire for a four-lane interstate and environmentalists who sought to limit impact on the notch.

[1995hoo]

Do a Google search for "Franconia Notch Parkway."