'''Interstate 591''' would Start on VT Rte 9 East of Marlboro VT. Then travel parallel & North of VT Rte 9 Then have an interchange with I-91. When it crosses into NH the road would travel parallel & South of NH Rte 9 ending near Keene NH.
==See also==
* [[US Highways Proposed Improvements (Post Roads)|US Highways Proposed Improvements]] * [[National_Highway_System]]
==References==