From Wikipedia, the free encyclopedia
Washington-British Columbia
[edit]
I-5 2,223 km (1,381 mi) + 
Highway 99 377 km (234 mi) = 2,600 km (1,600 mi)
SR 539 24.43 km (15.18 mi) + 
Highway 13 11.50 km (7.15 mi) = 35.93 km (22.33 mi)
SR 9 157.99 km (98.17 mi) + 
Highway 11 17.11 km (10.63 mi) = 175.10 km (108.80 mi)
US 97 1,078 km (670 mi) + 
Highway 97 2,081 km (1,293 mi) = 3,159 km (1,963 mi)
SR 21 307.93 km (191.34 mi) + 
Highway 41 1.29 km (0.80 mi) = 309.22 km (192.14 mi)
US 395 2,099 km (1,304 mi) + 
Highway 395 4.03 km (2.50 mi) = 2,103 km (1,307 mi)
SR 25 195 km (121 mi) + 
Highway 22 46 km (29 mi) = 241 km (150 mi)
SR 31 43.11 km (26.79 mi) + 
Highway 6 406 km (252 mi) = 449 km (279 mi)
Idaho-British Columbia
[edit]
SH-1 18.00 km (11.18 mi) + 
Highway 21 14.12 km (8.77 mi) = 32.12 km (19.96 mi)
US 95 2,512 km (1,561 mi) + 
Highway 95 329 km (204 mi) = 2,841 km (1,765 mi)
Montana-British Columbia
[edit]
US 93 2,187 km (1,359 mi) + 
Highway 93 321 km (199 mi) = 2,508 km (1,558 mi) (2,776 km (1,725 mi) including Alberta Highway 93)
MT 17 22.7 km (14.1 mi) + 
Highway 6 73.5 km (45.7 mi) = 962 km (598 mi)
US 89 2,015 km (1,252 mi) + 
Highway 2 1,273 km (791 mi) = 3,288 km (2,043 mi)
I-15 2,307 km (1,434 mi) + 
Highway 4 103 km (64 mi) = 2,410 km (1,500 mi)
Montana-Saskatchewan
[edit]North Dakota-Saskatchewan
[edit]North Dakota-Manitoba
[edit] 
US 191 2,486 km (1,545 mi) + 
Highway 4 652 km (405 mi) = 3,138 km (1,950 mi)
MT 24 216 km (134 mi) + 
Highway 2 798 km (496 mi) = 1,014 km (630 mi)
MT 13 181 km (112 mi) + 
Highway 36 144 km (89 mi) = 325 km (202 mi)
MT 16 245 km (152 mi) + 
Highway 6 522 km (324 mi) = 792 km (492 mi)
