User:40bus/Interstate Highways/Interstate 27/Oklahoma

Interstate 27 marker Interstate 27
Proposed I-27 highlighted in red
Route information
Maintained by ODOT
Length	40.8 mi (65.7 km)
NHS	Entire route
Major junctions
South end	I-27 at the Texas state line
Major intersections	US 56 / US 64 / US 412 in Boise City US 385 in Boise City
North end	I-27 / US 287 / US 385 at the Colorado state line
Location
Country	United States
State	Oklahoma
Counties	Cimarron
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Oklahoma State Highway System Interstate US State Turnpikes

Junction list

The entire route is in Cimarron County.

Location	mi	km	Exit	Destinations	Notes
​	0.00	0.00		I-27 / US 287 south – Stratford, Amarillo	Continuation into Texas
​	0.3	0.48	1	SH-171 north
Boise City	20.6– 21.5	33.2– 34.6	21	US 412 / SH-3 (US 56 / US 64) – Boise City, Guymon	Interchange
	23.1	37.2	23	US 385 south – Boise City	Southern end of US-385/SH-3 concurrency
​	40.8	65.7		I-27 / SH-3 ends / US 287 / US 385 north – Lamar, Denver	Northern end of SH-3 concurrency; continuation into Colorado
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus