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State Route 84 (SR 84) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. Its western terminus is along US 6 at US 20 in Euclid, and its eastern terminus is at the Pennsylvania state line about south-southeast of Conneaut; Pennsylvania Route 226 continues eastward. A portion of SR 84 runs along the historic Johnnycake Ridge Road.〔(【引用サイトリンク】title=Technical Services Straight Line Diagrams )〕 ==History== *1923 – Original route established;〔(Explanation of the Ohio State Highway System ) (The Unofficial Ohio State Highways Web Site) by John Simpson〕 originally routed from south of Madison to west of Andover along the current alignment of State Route 307 from south of Madison to Dorset, and a currently unnumbered road from Dorset to West Andover.〔(Route 84 ) (The Unofficial Ohio State Highways Web Site) by John Simpson〕 *1926 – Extended to Willoughby Hills along a previously unnumbered road.〔 *1931 – Truncated at Dorset; Dorset to West Andover decertified.〔 *1935 – Rerouted from Madison to Ashtabula along the previous State Route 307 alignment (which was unnumbered before 1933); former alignment from south of Madison to Dorset certified as State Route 307.〔 *1938 – Extended to Pennsylvania state line along the former alignment of State Route 83 from Ashtabula to Kelloggsville (which was unnumbered before 1926), and along a previously unnumbered road from Kelloggsville to the state line.〔 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「Ohio State Route 84」の詳細全文を読む スポンサード リンク
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