Irohazaka - Irohazaka

Japanese: いろは坂 - いろはざか
Irohazaka - Irohazaka

This road has many curves and connects Umagaeshi in Nikko, Tochigi Prefecture, and Chugushi Shrine on the shores of Lake Chuzenji. There is the First Irohazaka, which is for downhill travel only (road length 6,486 meters), and the Second Irohazaka, which is for uphill travel only (9,468 meters). There are 48 curves in total, 28 sharp curves on the First Irohazaka and 20 gentler curves on the Second Irohazaka, and signs are erected on each of them, tracing the 48 characters of the Japanese alphabet "Iroha...". It was renovated in the early Showa period to allow automobiles to pass through, and in 1954 (Showa 29) the First Irohazaka was completed and it became a toll road. In 1965 the Second Irohazaka was completed with the aim of alleviating congestion caused by the increase in traffic volume. In particular, the First Irohazaka is a magnificent panoramic course that runs from the gorge of the Daiya River, along the eastern slope of Mt. Nantai, along the left bank of Kegon Falls, and on to Chugushi Shrine. Both are part of National Route 120, officially called the Nikko Road. It became free in 1984 (Showa 59).

[Masayasu Murakami]

Irohazaka
First Irohazaka is for downhill only. Along with Second Irohazaka (for uphill only), it is part of National Route 120, and was named after the 48 curves in both sections, which are a reference to the 48 characters in the Japanese alphabet. On the right of the photo is the Hondo Falls over the Otani River. Nikko City, Tochigi Prefecture © Nikko City Tourism Association ">

Irohazaka


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

栃木県日光市馬返(うまがえし)と、中禅寺(ちゅうぜんじ)湖畔の中宮祠(ちゅうぐうし)をつなぐカーブの多い道路。下り専用(道路延長6486メートル)の第一いろは坂と、登り専用(9468メートル)の第二いろは坂とがある。第一いろは坂の急カーブ28と第二いろは坂の比較的緩カーブ20の合計48に、「いろは……」48文字をなぞらえて、それぞれの文字の表示が立てられている。昭和初期に改修されて自動車の通行が可能となり、1954年(昭和29)に第一いろは坂が完成して有料道路となった。交通量の増加のための渋滞解消を目的に、1965年第二いろは坂が完成した。とくに第一いろは坂は大谷(だいや)川の峡谷から男体山(なんたいさん)東斜面を通り華厳滝(けごんのたき)の左岸を通り、中宮祠に続く雄大なパノラマコースである。両者は国道120号の一部で、正式には日光道路といわれる。1984年(昭和59)に無料化。

[村上雅康]

いろは坂
下り専用の第一いろは坂。第二いろは坂(登り専用)とともに国道120号の一部で、名称は両方をあわせて48のカーブがあることから、「いろは四十八文字」になぞらえてつけられた。写真右は大谷川にかかる方等滝。栃木県日光市©一般社団法人日光市観光協会">

いろは坂


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