Interstate 182
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I-182 highlighted in red.
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| Route information | ||||
| Defined by RCW 47.17.372 | ||||
| Maintained by WSDOT | ||||
| Length: | 15.19 mi (24.45 km) | |||
| Existed: | June 23, 1969 – present | |||
| History: | Completed in 1986 | |||
| Major junctions | ||||
| West end: |
  I‑82 / US 12 near Richland
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 SR 240 in Richland US 395 in Pasco
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| East end: |
US 12 in Pasco |
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| Location | ||||
| Counties: | Benton, Franklin | |||
| Highway system | ||||
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Interstate 182 (I-182) is an east–west auxiliary Interstate Highway in the U.S. state of Washington. The state highway is an Interstate route, traveling around the city of Kennewick, the largest of the three Tri-Cities in Eastern Washington. I-182 passes through the cities of Richland and Pasco, located in Benton and Franklin counties, respectively. The four-lane freeway, which is concurrent with U.S. Route 12 (US 12) for its entire 15-mile-long (24 km) length, begins at an interchange with I-82 in the Horse Heaven Hills and runs through Richland, becoming concurrent with State Route 240 (SR 240). I-182 and US 12 cross over the Columbia River into Pasco on the Interstate 182 Bridge and become concurrent with US 395 before the former designation ends abruptly.
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