page_title: U.S. Route 30 in Oregon
section_title: East of Portland
hierarchical_section_title: U.S. Route 30 in Oregon / Route description / East of Portland
caption_attribution_description: Historic Route 30 sign in Troutdale, OR.
context_page_description: In the U.S. state of Oregon, U.S. Route 30, a major east–west U.S. Highway, runs from its western terminus in Astoria to the Idaho border east of Ontario. West of Portland, US 30 generally follows the southern shore of the Columbia River; east of Portland the highway has largely been replaced with Interstate 84, though it is signed all the way across the state, and diverges from the I-84 mainline in several towns, as a de facto business route. Out of all the states U.S. Route 30 traverses, it spends the most time in Oregon. At 477 miles, it is also the longest road in the state.
context_section_description: US 30 runs mostly along I-84 in Oregon east of Portland, diverting to short segments of the old surface route to act as a business route or scenic route for I-84:
  Historic Columbia River Highway No. 100 1 mile (2 km) through Cascade Locks (also designated the Cascade Locks Highway)
  Mount Hood Highway No. 26 3 miles (4 km) through Hood River
  Historic Columbia River Highway No. 100 and Mosier-The Dalles Highway No. 292 20 miles (32 km) from Mosier to The Dalles
  Pendleton Highway No. 67 7 miles (11 km) through Pendleton
  La Grande-Baker Highway No. 66 5 miles (9 km) through La Grande
  La Grande-Baker Highway No. 66, 22 miles (36 km) from North Powder to Baker City
  Huntington Highway No. 449 8 miles (13 km) through Huntington
  Ontario Spur No. 493, 1 mile (1 km) from Ontario to the Idaho state line
  The sections concurrent with I-84 are part of the Columbia River Highway No. 2 west of U.S. Route 730 at Boardman and part of the Old Oregon Trail No. 6 east of U.S. Route 730.
  There is also a U.S. Route 30 Business signed in the Ontario area.  This is part of the Olds Ferry-Ontario Highway No. 455.
caption: Historic Route 30 Sign
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