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Interstate 84 (I-84) is an Interstate Highway with two non-contiguous sections. This western section runs from Portland, Oregon, to a junction with Interstate 80 near Echo, Utah. The sections running through Oregon and Idaho are also known as The Vietnam Veterans Memorial Highway.〔"Idaho S1227: http://legislature.idaho.gov/legislation/2014/S1227.pdf"〕〔"Oregon SB 461: http://gov.oregonlive.com/bill/2013/SB461/"〕 The highway originally served as a fork of I-80 to serve the Pacific Northwest, and was originally numbered Interstate 80N. The highway serves and connects Portland, Oregon and Boise, Idaho with Ogden, Utah. Seattle, Washington is indirectly served by I-84 via a connection with Interstate 82. With the connection to I-80, I-84 connects these cities to points east. I-80N was generally built along the corridor of U.S. Route 30 and U.S. Route 30S, which themselves largely followed the Oregon Trail; the U.S. Route 30S designation was decommissioned in the 1970s after the freeway replacement was mostly complete. The highway was signed with the I-84 designation in 1980, when a 1977 change in guidelines took effect that discouraged highway numbers with directional suffixes.〔(【引用サイトリンク】Highway Resolutions: Route 84 )〕 The renumbering resulted in two highways being numbered I-84, with the other located in the Northeastern United States. == Route description == |- |Oregon |375.17〔 |603.78 |- |Idaho |275.74〔 |443.76 |- |Utah |118.71〔 |191.05 |- |Total |769.62〔 |1238.58 |} 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interstate 84 (Oregon–Utah)」の詳細全文を読む スポンサード リンク
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