Teruha Bridge

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Teruha Bridge
Aya Town, Miyazaki, Japan
466 feet high / 142 meters high
820 foot span / 250 meter span


Image by http://homepage1.nifty.com/morimori/

The highest conventional suspension footbridge in the world at the time of its completion in 1984, the Teruha bridge crosses 466 feet (142 mtrs) over the Aya or south river in Japan’s mountainous Miyazaki prefecture. In 2006, it was surpassed by another Japanese giant, the 568 foot (173 mtr) high Kokonoe "Yume" Otsurihashi, a footbridge that also has the second longest span of any conventional two tower footbridge in the world at 1,280 feet (390 mtrs).

Just recently discovered in China is a suspension footbridge constructed behind the Wanjiazhai Dam over the Yellow River with a span of 500 meters between towers or 467 meters as measured along the deck. This would make it the world's longest pedestrian suspension bridge. The bridge was originally built in 1994 for workers to get across the Yellow River gorge during the construction of the Wanjiazhai hydroelectric dam. Originally scheduled for removal in 2000 once the dam was completed, the dam personnel decided to keep it and so the span was rehabilitated and strengthened for long term use. The huge span is open to the public for a nominal fee.

Then there is the unique catenary suspension bridge at Sunway Lagoon Theme Park in Selangor, Malaysia with a span of 1,404 feet (428 mtrs). Switzerland’s Niouc is currently the highest footbridge in the world but is also a catenary suspension bridge with no towers. Many do not consider catenary bridges to be true suspension bridges since they have uneven, sloping decks that are often unstable.

Also referred to as the Aya Teruha bridge after its location near Aya Town, the word Teruha means shining leaves. Floating over the evergreen forest of the Kyushu Central Mountain Range National Park, the large span of 820 feet (250 mtrs) is supported by two towers 92 feet (28 mtrs) tall. Extra stability is assured from a pair of wind cables below the deck. 99 suspender cables are spaced 8.2 feet (2.5 mtrs) apart across the full length of the span. The Aya Teruha bridge is approximately 15 miles (16 kms) west of the port city of Miyazaki in southern Japan.

Other high footbridges in Japan include the the Ryujin with the world’s third longest two tower suspension footbridge span of 1,230 feet (375 mtrs), soaring nearly 328 feet (100 mtrs) over a reservoir. Living up to its name is the Ueno Skybridge with a walkway 295 feet (90 mtrs) above a forested valley. Constructed in Totsukawa, Nara prefecture in 1954, the 177 foot (54 mtrs) high Tanise suspension bridge is one of Japan’s oldest footbridges and is unusual for having two separate sets of cables supporting a span 974 feet (297 mtrs) long.

1984年に完成した際には、照葉大吊橋は世界で最も高い一般的な人道吊橋でした。高さ142mに及ぶこの橋は日本の宮崎県の山あいに流れる綾川(南川)にかかっています。2006年に、別の日本の巨大な九重“夢”大つり橋(高さ173m)に追い越されてしまいました。歩行者用であるこの橋は、世界にある一般的な二つのタワー橋の中では最も長いスパン(390m)を持っています。しかし、どちらの橋も、マレーシア、セランゴルのスンウェイラグーン・テーマパーク(Sunway Lagoon Theme Park in Selangor, Malaysia)にある全長428mのカテナリーつり橋ほど長くはありません。スイスのニオク(Niouc)は現在世界で最も高い歩行者用つり橋 ですが、タワーのないカテナリーつり橋です。カテナリーつり橋には、しばしば平らでなく不安定に傾斜するデッキがあるため多くの人はこの橋を真のつり橋として認めません。





Image by dream888.sakura.ne.jp.


Image by dream888.sakura.ne.jp.


Image by dream888.sakura.ne.jp.


Teruha Bridge satellite image. The bridge is near the center of the image at the top of a pointed tip on a large 180 degree river bend.

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