Major Intersections
| County | Location | Mile | km | Exit | Destinations | Notes |
|---|---|---|---|---|---|---|
| Grays Harbor |
Aberdeen | 0.00 | 0.00 | US 101 to SR 105 / SR 109 – Westport, Grayland, Raymond, Port Angeles, Hoquiam | ||
| 9.41 | 15.14 | Devonshire Road | ||||
| Montesano | 10.24 | 16.48 | SR 107 – Montesano, Raymond | |||
| Elma | 20.19 | 32.49 | 3rd Street – Satsop Development Park | Interchange | ||
| 20.99 | 33.78 | SR 8 east – Olympia | Interchange | |||
| Thurston |
Rochester | 41.58 | 66.92 | Albany Street | Former SR 121 | |
| Grand Mound | 46.07 | 74.14 | Old Highway 99 – Grand Mound | Former US 99 south | ||
| 46.32 | 74.54 | I-5 north / Old Highway 99 – Seattle, Tenino | West end of I-5 overlap; west end of freeway; former US 99 north | |||
| Lewis |
Centralia | 51.92 | 83.56 | 82 | Harrison Avenue, Factory Outlet Way | |
| 52.98 | 85.26 | 81 | SR 507 (Mellen Street) | |||
| Chehalis | 55.57 | 89.43 | 79 | Chamber Way | ||
| 56.68 | 91.22 | 77 | SR 6 west – Pe Ell, Raymond | |||
| 58.10 | 93.50 | 76 | 13th Street | |||
| Napavine | 61.87 | 99.57 | 72 | Rush Road | ||
| 63.60 | 102.35 | 71 | SR 508 east – Onalaska, Napavine | |||
| 66.24 | 106.60 | 68 | I-5 south – Portland | East end of I-5 overlap; east end of freeway | ||
| Mary's Corner | 68.86 | 110.82 | Jackson Highway – Lewis and Clark State Park | Former US 99 | ||
| Silver Creek | 79.98 | 128.72 | SR 122 east | |||
| Mossyrock | 86.59 | 139.35 | SR 122 west | |||
| Morton | 97.40 | 156.75 | SR 7 north – Morton, Mount Rainier, Tacoma | |||
| Randle | 114.72 | 184.62 | SR 131 south to FR 23 / FR 25 – Mount St. Helens | |||
| 138.34 | 222.64 | SR 123 north – Mount Rainier National Park | ||||
| Lewis–Yakima county line |
150.79 | 242.67 | White Pass | |||
| Yakima |
185.08 | 297.86 | SR 410 west – Chinook Pass | |||
| 199.06 | 320.36 | West end of freeway | ||||
| Yakima | 199.64 | 321.29 | Fruitvale Boulevard, North 40th Avenue | |||
| 201.25 | 323.88 | North 16th Avenue | ||||
| 202.19 | 325.39 | North 1st Street | ||||
| 202.44 | 325.80 | 31 | I-82 west / US 97 north (SR 823 north) – Selah, Ellensburg | West end of I-82/US 97 overlap | ||
| 203.72 | 327.86 | 33A | Fair Avenue, Lincoln Avenue | Eastbound exit only | ||
| 204.27 | 328.74 | 33B | Yakima Avenue – Terrace Heights | Signed as exit 33 westbound | ||
| 205.80 | 331.20 | 34 | SR 24 east / Nob Hill Boulevard – Moxee | |||
| Union Gap | 207.32 | 333.65 | 36 | Valley Mall Boulevard – Union Gap | ||
| 208.87 | 336.14 | 37 | US 97 south – Goldendale | East end of US 97 overlap; eastbound exit and westbound entrance | ||
| 209.13 | 336.56 | 38 | Union Gap | Westbound exit and eastbound entrance | ||
| 211.37 | 340.17 | 40 | Thorp Road, Parker Road | |||
| 215.35 | 346.57 | 44 | Wapato | |||
| 221.14 | 355.89 | 50 | SR 22 east – Toppenish, Buena | |||
| Zillah | 223.11 | 359.06 | 52 | |||
| 225.11 | 362.28 | 54 | Division Road – Zillah | |||
| Granger | 229.53 | 369.39 | 58 | SR 223 south – Granger | ||
| Outlook | 234.67 | 377.66 | 63 | Sunnyside, Outlook | ||
| Sunnyside | 237.96 | 382.96 | 67 | Sunnyside, Mabton | ||
| 239.97 | 386.19 | 69 | SR 241 – Vernita Bridge, Sunnyside, Mabton | |||
| Grandview | 243.64 | 392.10 | 73 | Stover Road – Grandview | ||
| 246.08 | 396.03 | 75 | County Line Road – Grandview | |||
| Benton |
Prosser | 250.96 | 403.88 | 80 | Gap Road – Prosser | |
| 253.37 | 407.76 | 82 | SR 22 to SR 221 – Mabton, Paterson | |||
| 259.58 | 417.75 | 88 | Gibbon Road | |||
| 264.64 | 425.90 | 93 | Yakitat Road | |||
| Benton City | 267.61 | 430.68 | 96 | SR 224 north / SR 225 – West Richland, Benton City | ||
| 273.62 | 440.35 | 102 | I-82 east – Umatilla, Pendleton I-182 east – Richland, Pasco |
East end of I-82 overlap; west end of I-182 overlap; exit 102 on I-82 eastbound, unnumbered exit on I-182 westbound | ||
| Richland | 276.55 | 445.06 | 3 | Queensgate Drive | Signed as exits 3A (south) and 3B (north) westbound | |
| 277.45 | 446.51 | 4 | SR 240 west / Wellsian Way – Vantage | West end of SR 240 overlap | ||
| 278.57 | 448.31 | 5 | SR 240 east (George Washington Way) – Kennewick | East end of SR 240 overlap; signed as exits 5A (south) and 5B (north) | ||
| Columbia River |
279.66 | 450.07 | Interstate 182 Bridge | |||
| Franklin |
Pasco | 280.93 | 452.11 | 7 | Broadmoor Boulevard | |
| 282.95 | 455.36 | 9 | Road 68 | |||
| 285.86 | 460.05 | 12A | US 395 south – Kennewick, Pendleton | West end of US 395 overlap | ||
| 286.30 | 460.76 | 12B | North 20th Avenue – Columbia Basin College | |||
| 287.38 | 462.49 | 13 | North 4th Avenue – Pasco City Center | |||
| 287.99 | 463.47 | 14 | US 395 north / SR 397 south (Oregon Avenue) – Spokane, Finley | East end of US 395 overlap; signed as exits 14A (south) and 14B (north) | ||
| 288.81 | 464.79 | I-182 ends | East end of I-182 overlap | |||
| 289.53 | 465.95 | East Lewis Street – Kahlotus | ||||
| 290.24 | 467.10 | East end of freeway | ||||
| Walla Walla |
Burbank | 292.48 | 470.70 | SR 124 east – Prescott, Waitsburg | Interchange | |
| 304.64 | 490.27 | US 730 west – Umatilla, Pendleton | ||||
| Walla Walla | 332.48 | 535.07 | SR 125 to OR 11 – Prescott, Pendleton | |||
| 333.70 | 537.04 | 2nd Avenue – Walla Walla City Center | Interchange | |||
| 334.04 | 537.59 | Rees Avenue | No access across US 12 | |||
| 336.92 | 542.22 | Port of Walla Walla, Walla Walla Regional Airport | Interchange | |||
| 338.06 | 544.05 | Isaacs Avenue | Interchange | |||
| Waitsburg | 354.29 | 570.17 | SR 124 west – Prescott | |||
| Columbia |
369.37 | 594.44 | Turner Road | Former SR 126 east | ||
| 378.92 | 609.81 | SR 261 north | ||||
| Garfield |
387.50 | 623.62 | SR 127 north – Colfax, Spokane | |||
| 394.78 | 635.34 | Marengo Road | Former SR 126 west | |||
| Pomeroy | 400.64 | 644.77 | 15th Street | Former SR 128 east | ||
| Asotin |
Clarkston | 429.24 | 690.79 | SR 128 east to SR 193 – North Lewiston | ||
| 430.62 | 693.02 | SR 129 south – Asotin | ||||
| 430.68 | 693.11 | 1st Street – Port of Clarkston | ||||
| Snake River |
430.81 | 693.32 | Washington–Idaho state line (Lewiston–Clarkston Bridge) | |||
| Nez Perce |
Lewiston | US-12 east | Continuation into Idaho | |||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | ||||||
Read more about this topic: U.S. Route 12 In Washington
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