==Interstate 11 ==
Interstate 11 would travel from Phoenix AZ to Las Vegas NV. The road is planned to run parallel to US Route 60 and then parallel to [[US_Highways_Proposed_Improvements_(Post_Roads)#US_Rte_93_AZ.2C_NV.2C_.26_ID |US Route 93]]. Some options on the plan extend north to Reno NV or South to Tucson AZ.<ref>[https://www.reviewjournal.com/news/long-road-interstate-11 Adam Kealoha Causey, " Long Road to Interstate 11 "]</ref>
==Interstate 27 ==
'''A Northern section''' of Interstate 27 that would have '''no connection''' with the existing Texas section. The proposed I27 would start on I70 near Salina KS. and then head northwest to I80. I27 would run with I80 to North Platte NE. Then run parallel to US Route 83 and serve Johnstown NE, Winner SD, Pierre SD, Bismarck ND, and Minot ND. I27 would then continue North to Portal ND and the Canadian border. It would not enter any Reservation land.
It would not enter any Reservation landA southern extension of Interstate 27 has also been proposed, as part of a larger system of freeways known as the '''Plains to Ports Corridor'''. The proposed route has the interstate going from Lubbock (the current southern terminus) southward to Lamesa, then split into an eastern section going through Big Spring and a western section going through Midland, with the two sections reuniting at Sterling City, then continue through San Angelo and Del Rio, then along the border to Eagle Pass, then eastward to Carizzo Springs and finally ending at Laredo.
==Interstate 88 Ext ==
==Interstate 390 NY==
'''Interstate 390''' would connect I 90 exit 8 in North Greenbush NY to VT Route 279 in Bennington VT The road was planned to travel as part of NY State Route 43 and then parallel to NY State Route 43; then parallel to NY State Route 351; then parallel to NY State Route 7 to VT Route 279 The only parts of the extension that have been built are VT Route 279 near Bennington VT and Route 43 between I-90 & US Route 4 in East Greenbush NY.
A more recent option on the plan would have the road travel along existing power easements in North Greenbush NY with the power lines placed below the road, so that existing homes and businesses would be unaffected.[[US Highways Proposed Improvements (Post Roads)#US_Rte_4S_NY_.26_VT|A less expensive alternative following the same path is US 4S]]
==Interstate 484 PA ==
'''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==