|
Interstate 82 (I-82) is a Interstate Highway in the northwest United States, extending from I-90 in Ellensburg, Washington, to I-84 near Umatilla, 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's designation is a violation of the Interstate system's numbering rules, as it is located north of I-84, and is also primarily a north-south route. I-84 was originally designated I-80N, but received its current number in 1980 as part of efforts to eliminate suffixed routes.〔(【引用サイトリンク】Highway Resolutions - Interstate 84 )〕〔 〕 I-82 passes over Selah Creek on the Fred G. Redmon Bridge. At its opening on November 2, 1971, it was the longest concrete arch bridge in North America.〔(【引用サイトリンク】title=WSDOT - History of WSDOT (1978-1990) )〕 The bridge spans across the creek.〔〔 In 1999, a plan surfaced to extend the Interstate down south through Oregon. Three routes were proposed but all were rejected. ==Route description== |- |WA |132.57〔 |213.35 |- |OR |11.01〔 |17.72 |- |Total |143.58〔 |231.07 |} 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. Just north of Selah, the freeway passes over Selah Creek on the Fred G. Redmon Bridge, the longest concrete arch in North America at the time of its opening, spanning across the creek.〔〔 From the bridge, I-82/US 97 passes from Selah into Yakima.〔 In Yakima, I-82/US 97 join US 12 and intersect SR 24.〔 After leaving Yakima and Union Gap, US 97 splits from I-82/US 12. I-82 then enters the Yakama Indian Reservation as it starts turning eastward towards the Tri-Cities. West of Toppenish, I-82/US 12 intersects SR 22, and then goes east past Zillah and into Granger, where it intersects SR 223.〔(【引用サイトリンク】title=WSDOT Interchange Viewer - Interstate 82 (Exit 3 to 54) )〕 After leaving both Granger and the Yakama Indian Reservation, the freeway continues east to Sunnyside, where the highway intersects SR 241. Then, I-82/US 12 turns southeast to pass Grandview and reach Prosser, where SR 22 intersects the freeway.〔 From Prosser, the highway turns northeast into Benton City, where SR 224 and SR 225 intersect I-82/US 12. From Benton City, the freeway goes eastward towards Richland, when I-182 starts and US 12 joins I-182 into Richland. From the interchange, I-82 goes southeast around the Tri-Cities and joins US 395. After joining US 395, the freeway goes south and then west into Plymouth, where the highway intersects SR 14 and leaves Washington on the Umatilla Bridge over the Columbia River heading into Oregon.〔 〔(【引用サイトリンク】title=WSDOT Interchange Viewer - Interstate 82 (Exit 58-131) )〕 The original bridge of 1955 carries eastbound traffic (south over the river) and the newer 1988 bridge goes westbound (north over the river). After crossing the bridge into Oregon, I-82/US 395 enter Umatilla, where US 395 exits off at the intersection with US 730. After leaving Umatilla, the highway goes southwest and passes the Umatilla Ordnance Depot before ending at I-84/US 30 southwest of Hermiston. 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 82」の詳細全文を読む スポンサード リンク
|