Interstate 82 (Oregon)

Interstate 82
Interstate 82 highlighted in red
Route information
Maintained by WSDOT and ODOT
Length:	143.58 mi (231.07 km)
Existed:	1956 – present
Major junctions
West end:	I‑90 / US 97 in Ellensburg, WA
	US 12 in Yakima, WA US 97 near Yakima, WA I‑182 / US 12 near Richland, WA US 395 near Kennewick, WA US 395 / US 730 in Umatilla, OR
East end:	I-84 / US 30 in Umatilla County, OR
Location
States:	Washington, Oregon
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future ← OR 78 OR OR 82 → ← SR 41 WA I‑90 →

Interstate 82 (I-82) is a 143.58-mile (231.07 km) Interstate Highway in the northwest United States, extending from I-90 in Ellensburg, Washington, to I-84 near Hermiston, Oregon.

In Washington, it serves the cities of Ellensburg, Yakima, and the Tri-Cities (via I-182), and in Oregon, it serves Umatilla and Hermiston. Constructed from 1969 to 1987, it is the major route westwards to Seattle and eastwards to Boise and Salt Lake City (via I-84 and I-15).

I-82 passes over Selah Creek on the Fred G. Redmon Bridge. At its opening 46 years ago on November 2, 1971, it was the longest concrete arch bridge in North America. The bridge spans 549 feet (167 m) across the creek.

In 1999, a plan surfaced to extend the Interstate down south through Oregon. Three routes were proposed but all were rejected.

I-82 starts at an interchange with I-90 and U.S. Route 97 (US 97) in Ellensburg. At this point, I-82/US 97 start heading southeast towards Yakima, on roadbed graded and constructed from 1969 to 1971. (US 97 was previously routed through the serpentine Yakima River canyon, today's State Route 821 (SR 821).) Before entering Yakima, I-82/US 97 intersects SR 821 and State Route 823 (SR 823) while passing the Yakima Firing Center.