The U.S. Route 81 has eight special routes : three in Texas , one in Oklahoma , two in Kansas and two in North Dakota . U.S. Route 81 has eight special routes . Three are in Texas , one in Oklahoma , two in Kansas , and two in North Dakota .
Laluan Amerika Syarikat 81 mempunyai lapan laluan khas: tiga di Texas, satu di Oklahoma, dua di Kansas dan dua di Dakota Utara. Laluan A.S. 81 mempunyai lapan laluan khas. Tiga berada di Texas, satu di Oklahoma, dua di Kansas, dan dua di Dakota Utara.