Interstate 182

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.

Route description

I-182 begins at Goose Gap, located between Badger Mountain and Candy Mountain in the Horse Heaven Hills, at a trumpet interchange with I-82 and US 12 in unincorporated Benton County. The four-lane freeway carries I-182 and US 12 concurrently northeast into Richland, where it intersects Queensgate Drive in a partial cloverleaf interchange. The highway continues east across the Yakima River to a trumpet interchange with SR 240, forming a short concurrency with SR 240. The concurrency ends at the following junction, a cloverstack interchange with George Washington Way, where I-182 and US 12 split off from SR 240, which continues southeast into Kennewick along the Columbia River. The freeway continues northwest across the Columbia River on the Interstate 182 Bridge, also known as the Lee-Volpentest Bridges, which carry six lanes of I-182 on twin 1,500-foot-long (460 m) spans into Pasco in Franklin County.