List of intrastate Interstate Highways

From Wikipedia, the free encyclopedia.

The intrastate Interstate Highways in the contiguous United States, highlighted in red, not including Interstates 73 and 99.

The following one- or two-digit United States Interstate Highways do not cross state lines. There is no real violation of any rule here - nothing says an Interstate has to truly be inter-state, but it is an amusing violation of the phrase.

Interstate 4	- Tampa, FL (I-275) to Daytona Beach, FL (I-95)
Interstate 12	- Baton Rouge, LA (I-10) to Alton, LA (I-10)
Interstate 16	- Macon, GA (I-75) to Savannah, GA
Interstate 17	- Phoenix, AZ (I-10) to Flagstaff, AZ (I-40)
Interstate 19	- Nogales, AZ (Mexican border) to Tucson, AZ (I-10)
Interstate 27	- Lubbock, TX to Amarillo, TX (I-40)
Interstate 37	- Corpus Christi, TX (US-181) to San Antonio, TX (I-35)
Interstate 43	- Beloit, WI (I-39 & I-90) to Green Bay, WI (US-41)
Interstate 45	- Galveston, TX (TX-124) to Dallas, TX (I-30)
Interstate 49	- Lafayette, LA (I-10) to Shreveport, LA (I-20)
Interstate 73	- Candor, NC (US-220) to Greensboro, NC (I-40 & I-85)
Interstate 86 (west)	- Heyburn, ID (I-84) to Pocatello, ID (I-15)
Interstate 87	- New York, NY (I-278) to Champlain, NY (Canadian border)
Interstate 88 (west)	- Moline, IL (I-80) to Chicago, IL (I-290)
Interstate 88 (east)	- Binghamton, NY (I-81) to Schenectady, NY (I-90)
Interstate 96	- Muskegon, MI (US-31) to Detroit, MI (I-75)
Interstate 97	- Annapolis, MD (US-50) to Baltimore, MD (I-695)
Interstate 99	- Bedford, PA (I-70/I-76) to Bald Eagle, PA (US-220)

Of course, Alaska's and Hawaii's interstate highways are fully within that state's boundaries. And Puerto Rico is not a state, but it also has internal highways funded by the Federal Government.

• Interstate H-1
• Interstate H-2
• Interstate H-3
• Interstate A-1
• Interstate A-2
• Interstate A-3
• Interstate A-4
• Interstate PRI-1
• Interstate PRI-2
• Interstate PRI-3

Notes

• Interstate 73 may eventually reach Michigan and South Carolina
• Interstate 49 may eventually reach Kansas City, Missouri
• Interstate 45 may eventually extend through Oklahoma
• Interstate 99 may eventually extend through New York but it currently has no direct connection with any other interstate. Surface roads connect it with I-70/I-76 at its south end.
• Interstates 19 and 87 reach the Mexican and Canadian borders, respectively, but do not cross any other state lines.

See also

• List of Interstate Highways
• List of gaps in Interstate Highways