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State Highway 30 (abbreviated SH-30) is a state highway in Oklahoma. It runs south-to-north along the western edge of the state, from U.S. Highway 62 (US-62) in Hollis to the town of Durham, two miles (3 km) north of SH-33. It passes through Harmon, Beckham and Roger Mills counties. SH-30 does not have any letter-suffixed spur routes branching from it. The SH-30 designation dates back to March 31, 1936, when it spanned from Erick to Sweetwater. The highway gradually evolved over the years, reaching its current form in 1970. ==Route description== SH-30 begins at US-62 in Hollis, the seat of Harmon County. It travels north through very sparsely populated terrain to the unincorporated settlement of McKnight, about north of Hollis. North of McKnight, the highway crosses the Salt Fork of the Red River. SH-30 has a junction with SH-9, north of McKnight. For the next through rural Western Oklahoma, SH-30 roughly parallels the Texas state line, lying generally about west of it. The highway bridges over the Elm Fork of the Red River about before crossing into Beckham County.〔 west of Erick, SH-30 intersects Interstate 40 Business. SH-30 begins a concurrency with the business loop, traveling east into the town. In Erick, SH-30 turns back to the north, interchanging with Interstate 40, then crossing the North Fork of the Red River and running through the unincorporated settlement of Mayfield. About north of Erick, it comes to an intersection with SH-152 in Sweetwater. At this point, it crosses into Roger Mills County.〔 From Sweetwater, SH-30 travels north for to SH-47, which it joins for , to the town of Reydon. Leaving Reydon, SH-30 continues alone across the Black Kettle National Grassland, continuing north for to its junction with SH-33. After crossing SH-33, SH-30 continues on for to its terminus at a local road at Durham.〔 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「Oklahoma State Highway 30」の詳細全文を読む スポンサード リンク
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