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State Route 269 (SR-269) is a state highway in the U.S. state of Utah that sits completely within Salt Lake City in Salt Lake County. It consists entirely of a one-way pair of 500 South and 600 South, two parallel one-way streets that connect I-15 and I-80 to downtown Salt Lake City.〔 SR-269 was designated in 1960 and constructed later that decade, coinciding with the construction of I-15 in the area. Prior to 2000, SR-269 began and ended with viaducts that were longer than they are now. From the western terminus, the viaduct extended from I-15/I-80 to 200 West, two blocks east of where the viaduct ends presently. The other segment's viaduct began at 300 West (also two blocks east of where it begins now) and extended to I-15/I-80. As a part of I-15's reconstruction and then-Salt Lake City Mayor Deedee Corradini's Gateway project, the viaducts were drastically shortened.〔(【引用サイトリンク】 publisher=Stober, Dan )〕〔(【引用サイトリンク】 publisher=McGraw-Hill Construction )〕〔(【引用サイトリンク】 publisher=The Center For Brownfields Initiatives )〕 This was possible primarily because the Union Pacific Railroad was making much less use of the rail lines over which the eastern portions of the viaduct passed than it and its former competitor, the Denver and Rio Grande Western Railroad were when the highway was originally constructed. The route connects the city center with the freeway. As the settlers of Utah laid their towns with amply wide streets, one-way streets are rare in the city, SR-269 being one of two such pairs in existence. As part of I-15's construction in the 1960s, planners felt that two one-way streets with many lanes leading to and from the freeway would be better utilized.〔 The one-way streets continue (as non-state highways) east of US-89 to the block west of Trolley Square before becoming two-way and then intersecting SR-71. ==Route description== SR-269 has two separate segments that lie a block apart, both one-way streets; the eastbound segment is known as 600 South (ceremoniously Martin Luther King Jr. Boulevard), while the westbound segment is named 500 South (officially Cesar E. Chavez Boulevard).〔 The highway begins its eastbound stint from two exits from eastbound I-80 and northbound I-15. The ramps merge above the small rail yard that runs along the west side of 600 West, and the combined viaduct carries five eastbound lanes on a route aligned with 600 South (which exists as a frontage road below). The viaduct reaches grade-level at 400 West in the Granary District area of the city. Past 200 West, the road loses one lane. The highway continues east three blocks (intersecting SR-270 and Main Street, including a light rail route used by all three lines of the UTA TRAX system) before state maintenance ends at US-89 (State Street). The westbound section begins at an intersection with US-89 (at the southwest corner of Washington Square) with four lanes and passes south of the Scott Matheson State Courthouse and the Courthouse TRAX station on 500 South. Continuing past Main Street, the road gains one lane at SR-270 and another at 200 West. At 400 West, it passes a grain elevator that is served by a railroad spur running in the block between SR-269's two at-grade segments (connecting to the rail yard over which the elevated segments pass). After 500 West, the highway elevates to above grade-level with four lanes and dips southwest before two lanes default onto southbound I-15/eastbound I-80 and the two other lanes default onto westbound I-80. 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「Utah State Route 269」の詳細全文を読む スポンサード リンク
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