Interstate Highways

Washington | U.S. Routes | State Routes 3-99 | State Routes 100-292 | State Routes 300-971 | State Line Crossings | Erroneous Signage |

Primary Interstate Highways

Main | OR State Line to SR 14 | SR 14 to SR 501 | SR 501 to SR 500 | SR 500 to I-205 | I-205 to SR 502 | SR 502 to SR 501 | SR 501 to SR 503 | SR 503 to SR 432 | SR 432 to SR 4 | SR 4 to SR 411/SR 504 | SR 411/SR 504 to SR 506 | SR 506 to SR 505 | SR 505 to US-12 | US-12 to SR 508 | SR 508 to SR 6 | SR 6 to SR 507 | SR 507 to US-12 | US-12 to SR 121 | SR 121 to SR 121 | SR 121 to US-101 | US-101 to SR 510 | SR 510 to SR 512 | SR 512 to SR 16 | SR 16 to I-705/SR 7 | I-705/ SR 7 to SR 167 | SR 167 to SR 99 | SR 99 to SR 18 | SR 18 to SR 516 | SR 516 to I-405/SR 18 | I-405/SR 18 to SR 599 | SR 599 to SR 900 | SR 900 to I-90 | I-90 to SR 520 | SR 520 to SR 522 | SR 522 to SR 523 | SR 523 to SR 104 | SR 104 to SR 524 SPUR | SR 524 SPUR to I-405/SR 525 | I-405/SR 525 to SR 96 | SR 96 to SR 99/SR 526/SR 527 | SR 99/SR 526/SR 527 to SR 529 | SR 529 to US-2 | US-2 to SR 529 SPUR | SR 529 SPUR to SR 529 | SR 529 to SR 528 | SR 528 to SR 531 | SR 531 to SR 530 | SR 530 to SR 532 | SR 532 to SR 534 | SR 534 to SR 536 | SR 536 to SR 538 | SR 538 to SR 20 | SR 20 to SR 11 | SR 11 to SR 11 | SR 11 to SR 542 | SR 542 to SR 539 | SR 539 to SR 548 | SR 548 to SR 543 | SR 543 to SR 548 | SR 548 to BC-99/BC International Boundary |

Main | I-90/US-97 to SR 821 | SR 821 to SR 821 | SR 821 to SR 823 | SR 823 to US-12 | US-12 to SR 24 | SR 24 to US-97 | US-97 to SR 22 | SR 22 to SR 223 | SR 223 to SR 241 | SR 241 to SR 22 | SR 22 to SR 224 | SR 224 to I-182/US-12 | I-182/US-12 to US-395 | US-395 to SR 397 | SR 397 to SR 14 | SR 14 to OR State Line |

Main | SR 519 to I-5 | I-5 to I-405 | I-405 to SR 900 | SR 900 to SR 18 | SR 18 to SR 202 | SR 202 to SR 906 | SR 906 to SR 906 | SR 906 to SR 970 | SR 970 to US-97 | US-97 to I-82/US-97 | I-82/US-97 to SR 26 | SR 26 to SR 281 | SR 281 to SR 281 SPUR | SR 281 SPUR to SR 171 | SR 171 to SR 17 | SR 17 to SR 21 | SR 21 to US-395 | US-395 to SR 261 | SR 261 to SR 23 | SR 23 to SR 904 | SR 904 to SR 902 | SR 902 to SR 904 | SR 904 to SR 902 | SR 902 to US-2 | US-2 to US-195 | US-195 to US-2/US-395 | US-2/US-395 to SR 290 | SR 290 to SR 27 | SR 27 to ID State Line |

Secondary Interstate Highways

Main | I-82/US-12 to SR 240 | SR 240 to SR 240 | SR 240 to US-395 | US-395 to US-395/SR 397 | US-395/SR 397 to US-12 |

Main | I-5 to SR 500 | SR 500 to SR 14 | SR 14 to OR State Line |

Main | I-5/SR 525 to SR 527 | SR 527 to SR 522 | SR 522 to SR 908 | SR 908 to SR 520 | SR 520 to I-90 | I-90 to SR 900 | SR 900 to SR 900 | SR 900 to SR 169 | SR 169 to SR 515 | SR 515 to SR 167 | SR 167 to SR 181 | SR 181 to I-5/SR 518 |

Main | Schuster Parkway to SR 509 | SR 509 to I-5/SR 7 |