Proposed interstate highways

Interstate highway construction is coordinated by the U.S. Department of Transportation in conjunction with the transportation departments of the various states. Funding typically comes from a match between state funds and federal highway trust funds. The American Association of State Highway and Transportation Officials (AASHTO) has defined a set of standards that all new Interstates must meet unless a waiver from the Federal Highway Administration (FHWA) is obtained. AASHTO also assigns numbers to new interstate routes.

On October 14, 1992, the original Interstate Highway system was completed, but the system continues to be expanded and improved. In many cases, new interstate highway routes are the subject of specific Congressional action or earmarks.

Interstate 98

The Eastern section of Interstate 98 would connect I-81 in Jefferson County NY with I-89 near Swanton VT using the existing bridges across Lake Champlain. The Road would run parallel to US Route 11 in New York and the Run parallel to US Route 2 in NY and VT. It would then run parallel to VT Route 78 ending on I-89 in VT. The Western Section of Interstate 98 would connect I-75 near Rudyard MI with I-15 near Shelby MT. It would run parallel and North of US Route 2

Interstate 88 Extension

Interstate 88 currently ends at Schenectady NY. The plan was to extend it parallel to NY State Route 50. Cross the Hudson River between Fort Miller NY & Fort Edward NY, and then travel parallel to U.S. Route 4; to I-89 near Sharon VT. The only parts of the extension that have been built are U.S. Route 4 in VT was upgraded to limited access between the VT/NY line and Rutland VT. Also a new bridge was built across the Mohawk River, in Schenectady NY, that connects with I-90 Thruway exit 26, I-890, and the existing I-88.

Interstate 390

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.

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 Route 93. Some options on the plan extend north to Reno NV or South to Tucson AZ.

Interstate 9

Interstate 9 would travel from Wheeler Ridge, CA to Stockton, CA The road is planned to run parallel to CA Route 99 .

Interstate 591

The proposed road 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.