Difference between revisions of "Kokonoe "Yume" Otsurihashi Footbridge"

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World's 25 Longest Footbridge Spans
+
World's 40 Longest Footbridge Spans
  
1. Baglung Parbat, Nepal - 567 meters
+
1. Sky Bridge 721, Czech Republic - 721 meters
  
2. 516 Arouca, Portugal - 516 meters
+
2. Skywalk Willingen, Germany – 665 meters
  
3. Wanjiazhai Dam, China - 500 meters
+
3. Yundingfeidu Glass Footbridge, China – 615 meters
  
4. Charles Kunonen, Switzerland – 494 meters
+
4. Tibetan Footbridge of Canillo, Andorra - 603 meters
  
5. Kushma Bungy, Nepal - (490) meters
+
5. Haizhaigou UFO Glass Footbridge, China - 600 meters
  
6. Rappbode Dam, Germany - 458 meters
+
6. Castelsaraceno Footbridge, Italy - 580 meters
  
7. Daqingshan Glass Footbridge, China - 450 meters
+
7. Gandaki Golden/Baglung Parbat, Nepal - 567 meters
  
8. Hongyagu Glass, China - 445 meters
+
8. 516 Arouca, Portugal - 516 meters
  
9. Sochi Skybridge, Russia – 439 meters
+
9. Wanjiazhai Dam, China - 500 meters
  
10. Zhangjiajie Grand Canyon Glass, China 430 meters
+
10. Charles Kunonen, Switzerland 494 meters
  
11. Tianyundu Glass Footbridge, China - (420) meters
+
11. Kushma Bungy, Nepal - (490) meters
  
12. Yinzuotianmeng, China – 420 meters
+
12. Huangchuansanxia Glass, China - 460 meters
  
13. Highline 179, Austria – 402 meters
+
13. Rappbode Dam, Germany - 458 meters
  
14. Mishima Grand, Japan – 400 meters
+
14. Blackforestline of Todtnau, Germany - 450 meters
  
15. Kokonoe Otsurihashi, Japan - 390 meters
+
15. Tianyundu Glass Footbridge, China - (450) meters
  
16. Ryujin, Japan - 375 meters
+
16. Daqingshan Glass Footbridge, China - 450 meters
  
17. Skywalk Sattel, Switzerland - (374 meters)
+
17. Longguwan Glass Footbridge, China - (445) meters
  
18. Geierlay, Germany – 360 meters
+
18. Hongyagu Glass, China - 445 meters
  
19. Kushma-Mudhikuwa, Nepal - 359 meters
+
19. Sochi Skybridge, Russia – 439 meters
  
20. Baiheshanzhuang Footbridge, China - 358 meters
+
20. Zhangjiajie Grand Canyon Glass, China – 430 meters
  
21. Bailihuang Glass Footbridge, China - 350 meters
+
21. Yinzuotianmeng, China – 420 meters
  
22. Triveni Garas, Nepal - 350 meters
+
22. Longguashan Footbridge, China – (410) meters
  
23. Bunwajorghat, Nepal - 350 meters
+
23. Chikhaldara Glass Skywalk, India - 407 meters
  
24. Shuiyuan Footbridge, China - 342 meters  
+
24. Ulleong Sogeumsan, South Korea - 404 meters
 +
 
 +
25. Highline 179, Austria – 402 meters
 +
 
 +
26. Mishima Grand, Japan – 400 meters
 +
 
 +
27. Kokonoe Otsurihashi, Japan - 390 meters
 +
 
 +
28. Nanjiang Gorge Glass Footbridge, China - (385 meters)
 +
 
 +
29. Jorullo ATV Bridge, Mexico - 380 meters
 +
 
 +
30. Ryujin, Japan - 375 meters
 +
 
 +
31. Skywalk Sattel, Switzerland - (374 meters)
 +
 
 +
32. Yunjian Glass Footbridge, China - (365 meters)
 +
 
 +
33. Bega-Banduk, Nepal - 365 meters
 +
 
 +
34. Geierlay, Germany – 360 meters
 +
 
 +
35. Kushma-Mudhikuwa, Nepal - 359 meters
 +
 
 +
36. Baiheshanzhuang Footbridge, China - 358 meters
 +
 
 +
37. Qingrengu Glass Footbridge, China - (355 meters)
 +
 
 +
38. Bailihuang Glass Footbridge, China - 350 meters
 +
 
 +
39. Triveni Garas, Nepal - 350 meters
 +
 
 +
40. Bunwajorghat, Nepal - 350 meters
 +
 
 +
41. Shuiyuan Footbridge, China - 342 meters  
  
  

Latest revision as of 23:14, 4 January 2024

Kokonoe "Yume" Otsurihashi Footbridge
九重“夢”大つり橋
Kokonoe, Oita, Japan
568 feet high / 173 meters high
1,280 foot span / 390 meter span
2006

1KokonoeBridge.jpg


The Kokonoe "Yume" Otsurihashi suspension footbridge was upon its completion the longest and highest of its type in the world. Opened in 2006, the main span of 1,280 feet (390 mtrs) surpassed the previous record holder, the Ryujin footbridge - also in Japan - which has a span of 1,230 feet (375 mtrs). Kokonoe was also Japan’s highest bridge at 568 ft. (173 mtrs) - a record it retained for 4 years until 2010 when the Hiroshima Airport arch bridge opened. Neither bridge however, is as long as the catenary Baglung Parbat Foobridge in Nepal with a span of 567 meters and Japan's own Mishima Skywalk near Mount Fuji opened with a main span of 400 meters. Switzerland’s Niouc was once 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.

Of course the Japanese are no strangers to high and long footbridges. Prior to Ryujin and Kokonoe, one of the country’s longest suspension footbridges was the 1984-built Teruha bridge in Aya with a tower to tower distance of 820 feet (250 mtrs). At the time Aya also held Japan’s bridge height record at 466 feet (142 mtrs). Other high footbridges in Japan include the Ueno Skybridge some 295 feet (90 mtrs) above a forested valley and the Tanise suspension bridge 177 feet (54 mtrs) high with a length of 974 feet (297 mtrs). Constructed in Totsukawa, Nara prefecture in 1954, Tanise is one of Japan’s oldest suspension footbridges and is unusual for having two separate sets of main support cables.

The name "Yume" means dreams - a representation of the people of Kokonoe and their desire to bring the people of the region together in one harmonious exchange of ideals and culture. Or something to that effect. A more simple reason to have built the bridge is for the outstanding views it offers of the Naruko-gawa gorge and its towering cliffs and waterfalls. Like any good footbridge of great height, Kokonoe has a narrow 5 foot (1.5 mtr) wide walkway that will induce many with a feeling of vertigo. Some will find this nerve racking while others will find it euphoric.

Although it no longer exists, the highest and longest tower supported suspension footbridge built at the time of its completion was upstream of the massive Glen Canyon Dam over the Colorado River in the U.S. State of Arizona from 1958 to 1964 to aid worker’s during the dam’s construction. It had a height of 640 feet (195 mtrs) and a span of 1,280 feet. An accurate conversion puts the 390 meter long Kokonoe bridge span at 1,279.5276 feet - about 6 inches short of the Arizona bridge!


KokonoeElev.jpg

Kokonoe "Yume" Otsurihashi Footbridge Elevation


九重“夢”大つり橋は歩行者専用の橋で、このタイプの橋の中では世界一長く高い橋です。2006年にオープンした長さ390mのこの橋は、それまで記録を保持していた長さ375mの竜神大吊橋(歩行者専用)を超えるものです。175mの高さを持つ九重“夢”大つり橋は、2010年に広島空港大橋がオープンするまで、四年間日本一高い橋として記録を保持していました。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のカテナリー型(垂れている)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 型つり橋です。カテナリー 型つり橋には、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ていません。

もちろん日本人も歩行者用吊り橋の高さや長さに関してよく知っています。竜神大吊橋と九重“夢”大つり橋以前、日本で最も長い歩行者用吊り橋の中の一つとして、1984年に宮崎県綾町に建てられた照葉大吊橋があります。この橋のタワーからタワーまでの距離は250mです。当時、綾町は日本一高い橋の記録(142m)を持っていました。日本でこの他に高さを誇る歩行者用吊り橋として、森林の谷間より90m上空にかかる上野スカイブリッジと高さ54m長さ297mの谷瀬吊り橋があります。1954年に奈良県十津川村に架設された谷瀬吊り橋は、日本で最も古い歩行者用吊り橋の一つで、珍しい点としては別々に分かれた二組の主要なサポートケーブルが使われていることです。

九重大つり橋につけられた“夢”は九重の人々の表現であり、又、彼らの願い「地域の人々が一つになって調和のとれたアイディアと文化の交換の場に参加してほしい」といったことを意味しています。そして、この橋を建てたもっと簡単な理由としては、橋が鳴子川渓谷にそびえ立つがけや滝などの雄大な景色を私達に見せてくれるからです。他のすばらし高架の歩行者用吊り橋のように、九重大つり橋は歩行幅が1.5mと狭く、このため目まいを引き起こすことがあります。ある人はここで緊張させられますが、他の人にとっては夢見心地の気分にさせられます。

現在はもう存在しませんが、タワーによって支えられた一番高くて長い人道吊り橋は、コロラドリバーの巨大なグレンキャニオンダムの上流に建てらたものです。これは、1958年から1964年のダム建設において労働者の援助のためにアリゾナ州に建てられました。この橋は高さ195mで全長1,280フィートでした。九重大つり橋の390mを正確にフィートに換算しますと、1,279.5276フィートとなりおよそ6インチほどアリゾナの橋よりも短いことになります。


World's 40 Longest Footbridge Spans

1. Sky Bridge 721, Czech Republic - 721 meters

2. Skywalk Willingen, Germany – 665 meters

3. Yundingfeidu Glass Footbridge, China – 615 meters

4. Tibetan Footbridge of Canillo, Andorra - 603 meters

5. Haizhaigou UFO Glass Footbridge, China - 600 meters

6. Castelsaraceno Footbridge, Italy - 580 meters

7. Gandaki Golden/Baglung Parbat, Nepal - 567 meters

8. 516 Arouca, Portugal - 516 meters

9. Wanjiazhai Dam, China - 500 meters

10. Charles Kunonen, Switzerland – 494 meters

11. Kushma Bungy, Nepal - (490) meters

12. Huangchuansanxia Glass, China - 460 meters

13. Rappbode Dam, Germany - 458 meters

14. Blackforestline of Todtnau, Germany - 450 meters

15. Tianyundu Glass Footbridge, China - (450) meters

16. Daqingshan Glass Footbridge, China - 450 meters

17. Longguwan Glass Footbridge, China - (445) meters

18. Hongyagu Glass, China - 445 meters

19. Sochi Skybridge, Russia – 439 meters

20. Zhangjiajie Grand Canyon Glass, China – 430 meters

21. Yinzuotianmeng, China – 420 meters

22. Longguashan Footbridge, China – (410) meters

23. Chikhaldara Glass Skywalk, India - 407 meters

24. Ulleong Sogeumsan, South Korea - 404 meters

25. Highline 179, Austria – 402 meters

26. Mishima Grand, Japan – 400 meters

27. Kokonoe Otsurihashi, Japan - 390 meters

28. Nanjiang Gorge Glass Footbridge, China - (385 meters)

29. Jorullo ATV Bridge, Mexico - 380 meters

30. Ryujin, Japan - 375 meters

31. Skywalk Sattel, Switzerland - (374 meters)

32. Yunjian Glass Footbridge, China - (365 meters)

33. Bega-Banduk, Nepal - 365 meters

34. Geierlay, Germany – 360 meters

35. Kushma-Mudhikuwa, Nepal - 359 meters

36. Baiheshanzhuang Footbridge, China - 358 meters

37. Qingrengu Glass Footbridge, China - (355 meters)

38. Bailihuang Glass Footbridge, China - 350 meters

39. Triveni Garas, Nepal - 350 meters

40. Bunwajorghat, Nepal - 350 meters

41. Shuiyuan Footbridge, China - 342 meters


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Kokonoe "Yume" Otsurihashi Footbridge satellite image.


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Kokonoe "Yume" Otsurihashi Footbridge location map.


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