【河津七滝ループ橋&旧道】山の中の旧道に入ったら意外な展開に

No, but this 720° turn is, you know. I saw it, I saw it. There’s a guardrail there. It’s that. The main theme of this video is to walk there from now on . This time, I will introduce the Kawazu Nanataki Loop Bridge and its old road in Kawazu Town, Izu . By the way, the tunnel you see now is the Shin-Amagi Tunnel, which appeared briefly at the end of the video of the Amagi Mountain Tunnel that was released the other day. However, the darkness performance of the sub-camera I am using for filming is extremely poor, so I will skip the internal footage. This channel introduces old roads, abandoned roads, tunnels, bridges, and other road-related things. I update it irregularly about several times a week, so if you are interested in these topics, please subscribe to the channel and set notifications to watch the latest videos without fail. Anyway, I’m going down the mountain to Kawazu, aiming for the loop bridge. By the way , did you notice how to read the name of the loop bridge? It’s pronounced “Kawazu Nanadaru Loop Kyo”. It’s not “Nanataki”. Actually, I noticed it in the middle of filming after this. That’s why I said “Nanataki Loop Kyo” at first . Well, please bear that in mind . In this area of Izu, waterfalls are called “Taru” or “Daru”. It seems to be a kind of dialect , but it seems to be a remnant of an old language. In old language, waterfalls were called “tarumi”, and there are examples of this in the Manyoshu. For example, the name of the Tarumi ward in Kobe City is said to come from the fact that there used to be several waterfalls there . On the other hand, the Otarumi Pass on the border between Tokyo and Kanagawa has nothing to do with waterfalls, and the prevailing theory is that it was called “tarumi” because the ridgeline was “slack” . So the kanji is probably a phonetic spelling. By the way, the word “taki” (waterfall) has been around for a long time, but it was a little different from the waterfall we know today, and it meant something like a place with a fast flow of water. Anyway, the Kawazu Nanataki Loop Bridge that I’m going to introduce is probably one of the most well-known loop mirrors in the country . Oh, and by the way. I had a late lunch here that day. There were some delicious fish-related set meals, but I had Tororo soba. When I go on a trip, I don’t really care about food. It would have been nice to have a convenience store nearby, but there wasn’t one. I should have stocked up on food somewhere beforehand, but I completely forgot. Anyway, I’ve digressed , but let’s get back on track and introduce the specifications of the loop bridge. First of all, I’ve been calling it the Kawazu Nanataki Loop Bridge, but it actually has a different official name , the Nanataki Viaduct. It is 1,064m long, has a height difference of 45m, and the loop diameter is 80m. The biggest feature of the Nanataki Viaduct is that it has a double loop. This means that all drivers who pass over the bridge have to make a 720° turn. It’s not something that happens often when driving normally . The bridge was completed in 1981 (Showa 56). This was a permanent solution to the 1978 Izu Oshima earthquake that cut off the Shuzenji-Shimoda Line, a major regional road . The Shuzenji-Shimoda Line was upgraded to National Route 414 in April 1982, the year after the loop bridge was opened, and remains so to this day. By the way, later on in the footage of the site, while walking along the old road section, I mutter something like “It was a national road,” but when the old road was in use, it was a prefectural road, not a national road . However, that section was certainly an important trunk road connecting the Mishima area and Shimoda , and it was originally a road connected to the Shin-Amagi Tunnel mentioned earlier, so I think it would be interesting to look at the old road section with that in mind. So , we’re about to arrive at the site. Hello, this is Papagene from “Something Old on the Road .” Thank you for your continued viewing, comments, and high ratings. Today, I’m in Kawazu Town in Izu. Well, this is the famous Kawazu Nanataki Loop Bridge . It goes round and round like this, but today I would like to explore the old road of this loop bridge. So, thank you for your support . Now, there should be no problem with the free parking lot here, but I was worried for a moment because there was some construction going on, but it’s okay. So, I was surprised, but I’ll keep it light. Anyway. So, what should I do about the old road? Well, it seems like you’re worried about something, but what’s the matter? Actually, I was planning to walk up the loop mirror of the current road to the top and enter the old road from there . By the way, in the in-car video earlier, you could see the branch to the old road, but did you know where it was? However, there was one thing that bothered me. This is a Google search, but according to an AI summary, pedestrians cannot cross the loop bridge . I wonder what to do. Should I just pretend not to notice? Well, that’s also true, so what did I do? Well, for now, I’ve come out to the current road. The loop bridge. It might be a bit backlit there. So, for now, I’ll go up the current loop bridge and go to the top of the loop bridge. I did a Google search and it said that pedestrians were not allowed on that loop bridge. But I thought that was strange, so I looked into it and it seems that pedestrians and bicycles are not allowed. Well, just to be sure, I called the Shimoda police station and confirmed it. It seems that pedestrians are not allowed. Or rather, they said that if you can’t get through here, you’ll be in trouble because there are no other ways . Well, as you can see, the shoulder is narrow so it’s a bit scary. Well, I’ll be careful. Because bicycles are allowed here. Where bicycles are allowed, pedestrians are usually allowed too. So, the old road is in the mountains, and you can see the guardrail over there. That’s the old road. Actually, I found an article on the internet about someone walking this old road, so I think the road itself is probably safe for now. However, it was a blog post from over 10 years ago, so I don’t know what it’s like these days. So , if it were true, I should have just made the round trip, but I didn’t feel like doing that, so I thought it might be interesting to walk around the loop mirror, and I decided to go this way first . Places like this are dangerous. People in cars don’t really think that people are passing by. No, it’s a little wider here, but it’s actually a bus stop. Kawazu…oh, it’s “Nana-daru” . Oh, what a mistake, what a mistake. Um, I thought for sure it was Kawazu “Nana-taki”, but it’s “Nana-daru”. No no no no no no no. Well, surprisingly, there are buses coming. However, looking at it at this time of day, it’s clear that it’s not used for commuting. It ‘s really for tourists, I guess. So, earlier, when I was coming down from this loop bridge in my car, I noticed this bus stop, and I was wondering why it was there , but actually, on the other side, it seems there are stairs going down. So I guess that’s the access road for this bus. So, I thought that the people who use the bus here use this loop bridge, but that ‘s not the case. Anyway, the road has narrowed again, but, well, from here, cars will surely notice me, so I don’t think it’s dangerous. It looks fast. You might be wondering why I’m walking here, but that’s fine. I want to walk. Oh, the breeze feels good. No, but this 720° tang , you know, I think I’d get dizzy even if I was driving. This loop mirror, well, the speed limit is 40km, but it used to be 30km. But , when I drove there earlier, it felt like 40km was really appropriate, or maybe I was going faster. It actually seemed like most people driving there were sticking to the speed limit around here. It’s the same for most things, but the speed limit was really useful in this area, or at least it was an appropriate value. I think it’s becoming like that. [Applause] Well, the ceiling disappears here. Oh, so that means there’s only half a lap left from here, and only one more lap . Ah, we’ve gone up another level from before, and the view is better. The breeze feels even better . There’s a 40km speed limit, plus no parking. Well, that makes sense. It would be a huge nuisance to stop here. No, but I’m still afraid of high places, I guess. I’m not at all worried about falling, but my hands are still sweating, for some reason. Oh, what’s this? Ah, that’s what it is. Well, the loop is over and it’s not a straight section, but well, I’m in a straight section for now. Yeah. They look a bit like they’re from the Kyusha-kai. Oh, there’s a road there too. And there’s a double track. But I don’t think that’s a ball road . Probably. Well, you’ll see if you go. Hmm. Hmm. Where does it lead to? [Applause] So, around here, oh, I can see it, I can see it. There’s a guardrail over there. That’s the ball path. The main theme of this trip is to walk there now. Was it? Oh, it’s huge. The bus has come. We just passed the last watchtower. Ah, this is it. Ah, well, we’ve reached the top of the loop mirror. So, um, this is the entrance to the ball path . It’s a bit strange to say the entrance to the ball path, though. From here onwards, this direction is a steep road. So, let’s go. I shouldn’t have come here at this time of year. I should have thought about the time of year to come. All right. Once we get in, it’s not that big of a deal, I’d like to think so. But it’s not like that. This. Oh, seriously? Um, is this what we ended up like? No, it’s fine. It’s fine. I was a bit scared, but yeah. No way. Hmm? What do you think? Ah, so this is it. Is it what they call road abandonment construction? No, but it’s not, originally. Ah, I see, I see. Yeah. That’s right. There’s a guardrail over there, so the original roadbed is here. This is, well, leftover soil , well, road abandonment construction, well, either. Maybe it’s both. Ah, Ouch, Ouch. Heave-ho. Heave-ho . Yeah. Heave-ho. Yeah. Oh, it’s peaceful now. Well, at first I was worried about what was going to happen. For a moment I thought about just walking back home like this, but thank goodness. It ‘s okay somehow. But there are a lot of pebbles rolling around around here . I wonder if they’re still rolling down from the top of the mountain. Yeah. So it’s a little difficult to walk. So, you know, it’s a common thing with abandoned roads, the guardrail is in a terrible state. Yeah. What is this H-beam for? Is it also a retaining wall? Oh, so maybe it was buried as a temporary measure to retain the earth in the section that collapsed after the Izu Oshima earthquake . This is just a guess. There is no documentary evidence. All right. Hey, these rolling rocks hurt if you step on them in a weird way . Yeah. You’ll twist your ankle. You have to be careful. But, yes, the expressway opened in 1981, so this has been in operation for 44 years, and if it was a national highway 44 years ago, it would normally be paved . There is no trace of paving here now, so it’s possible that it was destroyed , but if it was buried , there should be some places where the pavement is still there, so what’s going on? And then the ruins appeared. What is this? It’s a shop, right? Is it some kind of store or something? Someone’s drilled a hole . Huh? Huh? I can see through to the other side. What does this mean? Eh, it’s a house. Ah. I can see over there. What does this mean? Ah, that road down there is. I thought this abandoned building was completely soaked on this side, but it seems like the framework of the building itself is still there, but the walls are just bumpy. Well, I’m not an expert on the ruins side, so Sally, if you’re looking, please go this way, eh, go for it. Yes. Well, oh, there it is again. The bushes have appeared again. Oh, I see. It’s sunny here. That’s bad. Hey, hey, hey, hey, hey. Ah, but it ‘s peaceful over there again, so just be patient for a little while. Ah, oh, that’s what it means. Yes, it was connected. Yeah. Let’s go just a little further. This is the road we saw from the bridge earlier. It looks like a double-truck , so maybe there are light trucks coming. But it’s strange. According to that story, the road here is completely closed. Ah, that hut from earlier. Ah, the wall is a little bit off. Hmm. I wonder where it leads to? Well, [applause] Given the situation , it’s normal to think that there is farmland ahead. And this is new. There are quite a few tires. There are cars coming in here, as expected. Normally. If you go down too far, it’s unpleasant to go back . Yeah. I’d like to stop here for a bit. Yeah. But, I can’t help but find something like this. This yacon is new. Oh, I’ve come to a mysterious square. No, a square. Yeah. No, no, no, no. No, no. There’s more. I mean, there’s a pavement here, but ah, it’s now a normal road. Oh, I’m on a normal road. What’s that all about? I’ll check the map . I’m here in this blue place, but there’s no road on the map. Well, but I guess there’s a road that branches off from this road somewhere. Anyway, since it’s now a normal road, um, I think this branch road exploration mission is over here. Yes, um, even if I go down this way, I think I’ll just end up at the bottom, the long bowl. So I’ll go back. All right. Well, I’m back on the ball road. Yeah. So I came from this way. Well, well, um , if you come from below, you might not notice that the road is right in front of you. If you’re not paying attention, you’ll just go this way. Well, I think I realized something was wrong when I got off . Yeah. So, um, let’s go. I mean, it looks like a road ahead somehow. Well, well, the road is definitely this way, but this might be a road too. Um, the old national highway is definitely this way, of course. It’s no good. Somehow this level of flat ground looks like a normal road. What does that mean? Is it an occupational hazard ? No, it’s hot. Maybe I should have chosen a different season to come. But, well, spring was short this year too. I thought I’d go somewhere far away because it was getting a little warmer, but the weather was bad or I had something else to do, and before I knew it, it was already June. Late June. So, the rainy season started, and I thought it would be over all of a sudden, but the rainy season hasn’t turned into a rainy season yet . Um, today, oh, that’s right. Today is June 22nd, which way is it? Yeah. Well, it’s Sunday. Yes. Well, within about a week, the plum blossoms were supposed to have started, but it hasn’t rained at all, so it feels like summer has suddenly arrived, or rather, it feels like I’m showing you the way. No. Yes. Yes. That’s right. Even if you look at my face, It can’t be helped. Yeah. So, it’s pretty rough around here. Oh , that’s right. I forgot to say, but cars pass by here too. Um, just like normal . Anyway. But I don’t think it’s that far away. It’s already coming off the loop bridge. Yeah. I can see the bridge that connects to that loop bridge. But anyway, this has been there for a while, it’s holding down the reinforced concrete wall even more. I guess this reinforced concrete wall was probably there before the Izu Island earthquake. Then , after the Ijima Island earthquake, they realized that this reinforced concrete wall was dangerous, so they installed this. Yeah, I wonder if this rebar has any purpose? I don’t know. It might be a reuse of some parts. [Applause] Where did this thing come from? Was something like this lying on the side of the road even when he was still active?This national highway is concrete around here, but it’s not narrow here. It’s hollow , but the tires are moving, so cars are coming in here. I think it must have come in from the previous road . I’m sure that the road ahead is really closed, and cars should n’t be able to enter, according to the prior investigation. That’s right. It’s this rebar, right? There’s no regularity to it. It looks like they just brought it over from a construction site. Looking ahead, I can finally see what seems to be the end of this section of the road. This is the end. Well, it feels like I’m back in the lower world. All right. Oh, I can pass through normally now. I see. There’s a Kannon statue on the street . A Kannon statue, a Jizo statue. Yes. I was able to explore safely again today. Thank you. So, yippee. Yes, we have passed through. There are some houses so I will be quiet for a bit. So, this time we were at Kawazu 7 Darupkyo 7 on National Route 414. Not Nanatsuba . Ah, we introduced Kyukan of Loopkyo. Ah, thank you for watching this time too. See you again. Bye. So, where does this ball road ultimately lead to? Actually, it was also shown in the in-car video earlier. It is here. It is right after turning from Kunido Gendou towards Kawazu 7. It is here. The ball road was located just to the right from here. Now, [Music]

今回は伊豆の河津町にある河津七滝ループ橋とその旧道区間を歩きます。2025年6月22日撮影。

■今回の地図
地理院地図 : https://maps.gsi.go.jp/#16/34.791902/138.939071/&base=std&ls=std&disp=1&vs=c1g1j0h0k0l0u0t0z0r0s0m0f1
マピオン : https://www.mapion.co.jp/m2/34.79208750008022,138.93913505527502,17
Googleマップ : https://www.google.com/maps/place/%E6%B2%B3%E6%B4%A5%E4%B8%83%E6%BB%9D%E3%83%AB%E3%83%BC%E3%83%97%E6%A9%8B/@34.7923887,138.9371905,17.86z/data=!4m6!3m5!1s0x6019e500f48cf9af:0x97e9640bd44e171e!8m2!3d34.7918918!4d138.938766!16s%2Fg%2F120n2w5_?entry=ttu&g_ep=EgoyMDI1MDcyMy4wIKXMDSoASAFQAw%3D%3D
今昔マップ :

■チャプター
00:00 オープニング
03:59 ループ橋駐車場にて
05:29 ループ橋を歩く
12:11 旧道に突入
17:14 謎の道が出現
19:41 旧道復帰

※撮影機材(Amazonアソシエイトリンクです)
⇒ソニー HDR-AS300 (アクションカメラ)
https://amzn.to/2AyYrW8
⇒XXZU 自撮り棒 ミニ三脚 セルカ棒 7段階伸縮 ボール雲台 360°回転
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【チャンネル紹介】
千葉県を中心に、古道や廃道、土木構造物、戦跡(戦争遺跡)などを紹介しています。

はじめまして。「道にあるちょっと古いもの」の「パパゲーノ」と申します。このチャンネルでは、山の中に埋もれた廃道やトンネルや橋(現役・廃を問わず)、水路隧道(水路トンネル)などに突破したり潜ったり渡ったりしている模様をお伝えしていきます。

なお、今後の公表予定の動画についてなど、お知らせ等がある場合は、サブチャンネルで告知させていただくことがある、かもしれませんので、もしよかったら、サブチャンネルの方もご覧頂ければ幸いです。

※パパゲーノのサブチャンネル
https://www.youtube.com/channel/UCeQ_LAS_Y76EQOeXOYUCd4Q

皆様の身近にあるけど、気づきにくい「古くて変わったもの」を紹介していきます。いわゆる珍スポット、B級スポット呼ばわりされる場所が多くなるかと思いますが、どうぞよろしくお願いいたします。

【過去訪問場所】https://www.google.com/maps/d/viewer?mid=1q25aFSQdGTDt1d5Sab5gCJoxW-PLXEE&hl=ja&usp=sharing
【Twitter】https://twitter.com/vivapapageno
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【ブログ】https://ameblo.jp/papagenopapagena/
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#河津七滝ループ橋 #国道414号 #廃道 #道にあるちょっと古いもの

26 Comments

  1. 七滝ループ橋の旧道気になってたので、興味深く拝見しました。ありがとうございます。

  2. この前ロングトレイルもどきで、八丁池入口バス停から「水垂」バス停まで歩いて林道経由で滝脇遊歩道に出て散布してたって書きましたけど
    水垂=滝ですよね。垂水区はゴルフ場あるくらいだから垂水=湧き水なのかしら?

  3. 藪漕ぎまでお疲れ様でした🙇‍♀️
    パパさんの動画はメインもサブも癒されるので大好きです!廃墟をサリーさんに投げる所も好きw

  4. 動画中で仰っている鉄筋て、アースアンカーとかネイルアンカーではないでしょうか?

  5. こんにちは! いつもインパール作戦的な藪の中を探索ご苦労様です。 私は、昔からこの河津ループ橋が出来る以前は地元の方や観光目的の車などは、どう通っていたのか疑問がわかりました。

  6. ということは伊豆のもう一つのループ橋にも行ったとみた!

  7. 先ず、ループ橋が”歩行者禁止”と言われていた所以が、過去に旧道から”謎の道”にかけて歩行者用通路として開放していた時期があり、そのころの名残と思われます。
    また、廃墟は旧道が現役だった頃の”東海バス乗車券販売所”跡地で、ここが大滝温泉の唯一のアクセスポイントだったのだそうです。

  8. 6月撮影とのことですが、お暑い中、ループ橋徒歩遡上お疲れさまです。高いところ弱いので、動画でも●ヒュンでした。2:54 「すべからく(須く)」は「すべからく〜すべし・するべき」の係り受けで用いる表現で、決して「すべて」の置き換えができるものではなく誤用です。この場合は「押し並(な)べて」や素直に「すべて」とするのが妥当です。

  9. この旧道、子供のころに一度行った記憶がある。
    アスファルト舗装されており、でこぼこ道ではなかった。

  10. かわづななだる!
    他のついでに寄った時に感動しまして、翌年、天城荘さんに泊まりました。プールあり、そこから滝巡り、楽しい思い出です。
    伊豆はまだまだ色々回りたいところがありますが移動距離がそこそこ長くなるんですよね…。
    涼しくなったら行こうかなぁ〜。

  11. おっさんナイスな動画ありがとう😭薮林道はやばめな虫達が多いから長袖長ズボンでお願いしたいな😊

  12. 河津在住です。伊豆大島近海地震小学生の時、土曜半日授業が終わり、帰りのバスを待っている時、経験しました。その災害時今旧道と呼ばれている道路で路線バスが生き埋めになり犠牲者3名を出しました。当時、その災害カ所の2〜300m先に七滝のバス停があった為、自分の親も含め梨本地区(七滝温泉の地区名)の親達が大騒ぎになったと、後々聞きました。

  13. 再度投稿します。貴方が小屋と呼んだ建物は、当時住居兼店舗でした。そしてそこにバス停があり、梨本地区の子供達は店舗横の小道を通って、貴方が途中迷い込んだ脇道まで下って地区のそれぞれの家に帰っていました。道の最後に貴方が手を合わせた観音様は、生き埋めになったバスの犠牲者の慰霊像です。又、道路の舗装について疑問を持たれて居たようですが舗装はしっかりされていました。災害後、信号機を用いた片側一車線通行となり山側法面をずうっと工事していた事を覚えています。撮影途中、ご自身の顔を長いこと撮影していた箇所が有りましたが事故が起こった場所はあの辺りだったと思います。当時、現場に墓石位の簡単な慰霊碑が建っていました。どうなっているのか、気になっていましたが、撤去されていたんですね。

  14. ループ橋➿を歩くパパさん(*°ㅁ°)ハッ‼
    観てる自分までハラハラしますよでも羨ましい。こんな事なかなか出来ないですもん。
    パパさん行くとこ背丈ほどの薮あり👍あーまた伊豆行きたくなりました😆パパさん地方巡業面白いっ