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🏛 | Exchange opinions with the mayor and governor of the southern part of the prefecture


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Exchange opinions with the mayor and governor of the southern part of the prefecture

 
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By improving this road, it will be possible to reach National Highway No. 50 from Nogi Town via the vicinity of Watarase Retarding Ground.
 

A meeting was held in Oyama City on the XNUMXth, where the mayor and mayor of the southern part of the prefecture and Governor Tomikazu Fukuda exchanged opinions.Tochigi prefecture is a city and a town ... → Continue reading

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Tochigi TV is a Tochigi TV station that celebrated its 2019th anniversary in April 4. We will deliver the latest news in Tochigi Prefecture.


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Watarase Reservoir

Watarase Reservoir(Watase Yusuichi) isAshio mine poisoning caseFor the purpose of precipitating and detoxifying the mineral poison caused byWatarase RiverJapan's largest made downstreamReservoir.

HonshuThe largest in the south湿 地で2012(24)7/3,Ramsar ConventionBecame a registered wetland[1].

Overview

On the Watarase RiverOgawaとTomaba RiverIn the lower part of the Watarase River, where the two rivers meet, there used to be Akama Marsh, Ishikawa Marsh, Akama Shibunuma, Maehara Marsh, and more.Itakura SwampAnd so on.Such a large wetland where floods naturally play, which is topographically lower than the surrounding area.[2]EmbankmentIt is surrounded by a retarding basin.At the time of the Ashio Copper Mine Incident,Mines poisonIt was not provided for the purpose of countermeasures, but洪水The purpose was to prevent it,1903 yearsThe Second Mineral Poison Investigation Committee of the Empire of JapanAshio Copper MineIt was created in response to the proposal to install a retarding basin in the lower reaches of the Watarase River, and it was clear that it was for the purpose of combating mine poisoning.

By law,Ministry of Land, Infrastructure, Transport and TourismIt is inside a river under the jurisdiction of.More than 100 years after the Ashio copper mine incident, the mine poisoning has decreased, and it has become an area mainly for hydraulic control and water utilization.However, what decreased was the amount of new mineral poisons flowing from the upstream, and the soil in the retarding basin2020Even now, such as copper重金属Is included a lot.

Geography

The area of ​​the retarding basinTochigi-Gunma-Saitama-IbarakiIt spans four prefectures, but most of them are in Tochigi prefecture.Tochigi CityThe rest belongs to Tochigi prefectureOyama City,Tochigi PrefectureShimotsuga-gunNogi Town,Ibaraki PrefectureFurukawa,SaitamaKazo City,Gunma PrefectureOra-gunItakura TownBelong to.

The area is about 3300haHaneda airportIt is more than twice as large as.ゴ ル フ 場There is a place where is created, or a small part is oldMinistry of ConstructionWith permission ofFieldThere are places where the event was held, but there are no buildings, only some roads and bridges.

There are 1st regulating pond, 2nd regulating pond, and 3rd regulating pond inside.The west side of the Watarase River is the first regulating pond.The second regulating pond is east of the Tomoeha River, and the third regulating pond is on the north side of the Watarase and Tomoeha rivers.The first regulating pond was once called a ghost swamp and was popular with anglers, but due to the subsequent construction, a part of the south side was covered with concrete.Lake TananakaBecame.Most of the 1st regulating pond except Lake Tananaka and the 2nd and 3rd regulating ponds have a structure that stores water only when the water level rises, and only Lake Tananaka has the actual condition as a pond from normal times.

Traffic access

Automobile

Tohoku ExpresswayThe route from the IC to the central entrance and the north entrance, which are the main entrances of general vehicles, is shown.

  • Tohoku ExpresswayTatebayashi IC
    • National Route 354To the east (Furukawa(Direction) Drive about 11km (about 20 minutes) and turn left at the Kashiwado intersection.Next, along the west bank of the retarding basinPrefectural Road 9Go straight and turn right at the central entrance 1 km away or the north entrance 3 km away (parking lot available)
  • Tohoku ExpresswaySano Fujioka IC
    • National Route 50Drive west for about 1 km and turn left at the Takahagi intersection from the frontage road.As it isPrefectural Road 9Drive southeast (toward Fujioka / Furukawa) and is about 50km from National Highway No. 6.ShinkaibashiTurn right north.Alternatively, 200m further awayFujioka OhashiTurn right north and it's a bypassPrefectural Road 11When you drive, the two roads will soon merge.Turn left / enter (parking lot) at the north entrance, which is about 50 km (about 11 minutes) from National Highway No. 20, or at the central entrance, which is 3 km further away.

Train

The nearest stations are shown according to the main destinations in Watarase Retarding Ground.

  • Southwestern retarding basin: Central entrance (Southwestern shore of Lake Yanaka, Shimomiya Bridge)
    • Tobu Nikko-Yagyu StationGet off.You can see the southwestern shore of Lake Yanaka in about 20 minutes (1 to 2 km) on foot.
  • West of the retarding basin: North entrance (northwestern shore of Lake Yanaka, Yanaka Village Historic Site Preservation Zone, Children's Plaza Zone, Water Tamokuteki Zone, Watching Tower, Yoshihara Purification Facility, etc.)
    • Tobu Nikko LineItakura Toyo-Omae StationGet off.About 20 minutes walk (about 1.8km) from the east exit to the north entrance.About 25 minutes on foot (about 2km) from the north entrance to the Children's Plaza Zone, Yanaka Village Historic Site Preservation Zone, and Watching Tower
      • Rental bicycle: About 3 minutes (about 0.2km) on foot from Itakura Toyodaimae Station / East ExitWatase Nature MuseumAvailable at (Adults 400-600 yen)[3]
  • Northwestern to northern part of the retarding basin: ,, 1st regulating pond, etc.
    • Tobu Nikko LineFujioka StationGet off.About 20 minutes on foot (about 1.5km) to Watarase Yusuichi Wetland Museum.Watarase Country Club and No. 1 Reservoir are also nearby
      • Rental bicycle: Available at Watarase Yusuichi Wetland Museum, about 20 minutes on foot (about 1.5km) from Fujioka Station (charged)
  • Southern retarding basin :, Watarase RiverMikuni BridgeWait
    • Tobu Nikko LineShin-Furukawa StationGet off.About 3 minutes (about 0.2km) on foot from the east exit to Mikuni Bridge, which borders the Watarase River and the southern end of the retarding basin.
    • JRUtsunomiya Line-Furukawa StationGet off.About 20 minutes (1 to 2 km) on foot from the west exit, Watarase River and Mikuni Bridge
      • Rental bicycles: Free rental bicycles for city sightseeing "Kogatz" can be used at "Hanatokan" (Machinaka Regeneration Citizen's Plaza) in front of the west exit of Koga Station[4]
  • Eastern retarding basin: Sakurazutsumi, Watarase River, Omoi River, No. 2 regulating pond, etc.

In addition, Tochigi Municipal Bus The Fujioka Line (Lake Tananaka system) is on Saturdays, Sundays, and holidays of Tobu-Nikko Line.Shin-Ohirashita StationIt runs from to Lake Tananaka (Tobu Shin-Ohirashita Station- Tochigi StationSouth Exit- JR Ohirashita Station --Tobu Shin-Ohirashita Station - Iwafune Station - In front of Fujioka station - Lake Tananaka).

History

Tochigi Prefecture was established by clearing the wilderness in the central part of the current Watarase Retarding Ground.Shimotsuga-gunYanaka VillageIs vulnerable to floods because its altitude is lower than the surrounding area, and a dike is built around the village.InsideIt was an area.In Yanaka Village and surrounding villages, each house prepares for floodsMizutsuka,揚舟And so on.In the village, in addition to paddy fields and upland farming, there were many ponds and waterways around, and fish catching, wetland plant Yoshi, sedge-based Yoshizu, sedge hat making, and sericulture were also carried out.[5]

Located in the uppermost stream of the Watarase River in the 20s of the Meiji eraAshio Copper MineWhen the damage caused by the drainage of the mine poison that flows out becomes greater and the farmers' movement against the mine poison becomes more active,1905, The government has planned to acquire the entire Yanaka village and create a retarding basin in this area where the mine poison will settle.However, it was pointed out that this was aimed at weakening the movement by abandoning Yanaka Village, which was the center of the movement against mine poisoning, and lived in Yanaka Village.Shozo TanakaAlready done by.

The entire area of ​​Yanaka Village was forcibly acquired,1906,Forced abandoned villageIt became.1907The villagers' homes that had not been evacuated by then were forcibly destroyed.However, some villagers continued to live in the Yusui Pond.The last villagers left the area around February 1917, 2.

During the construction from 1912 to 1918, the government surrounded the area with a dike and made it a retarding basin.However, there was a bank in the central part of Yanaka Village other than Akama Marsh, Ishikawa Marsh, Akama Shibunuma, and Maehara Marsh, and there was usually no water, so it was a mechanism to store water during floods.At the same time, the river was replaced, and the Watarase River, which flowed along the border between Tochigi and Gunma prefectures, was changed to flow on the east side of Fujioka Town (currently Tochigi City).but,Prefectural borderBecause I did not make the change of, the trace of the former flow pathTochigi/Gunma/Saitama borderRemains as.

During this period, the retarding basin was also expanded, except for the former Yanaka village.Shimotsuga-gunHeya Village (currently Tochigi City), Nogi Village (currently Nogi Town) Gunma PrefectureOra-gunEbise Village(Currently Itakura Town), Ibaraki PrefectureSarushima-gunA part of Furukawa Town (currently Koga City) was also inside the retarding basin.

After this, there was a plan to build a regulating pond,Second World WarSuspended by.1963From (Showa 38)1998(平成10年)にかけて、全域を堤防で囲う工事が行われ、第1・第2・第3調節池の3地域に分けるほぼ現在の形となった。第1調整池は1970年(昭和45年)、第2調整池は1972年(昭和47年)、第3調整池は1997年(平成9年)完成。第1調整池内に1989In (1), the first reservoir, the Watarase Reservoir (Lake Tananaka), was constructed.

the 1970sUntil then, hunting is not regulated and hunters are in season猟Was going. In 1990 (Heisei 2), the Tochigi prefecture side was set as a hunting prohibited area, and after that, in this areaHunting gunNo more hunting by.In the play water pond,Tobu RailwayThere was a pay hunting ground set up by.This hunting ground was the last paid hunting ground in Tochigi prefecture.2012(Heisei26 years)Ramsar ConventionWith the registration in, the country designatedWildlife reserveHunting is impossible.

Bubble economyIn 1988 (Showa 63), the Watarase Retarding Ground Creation Land concept was announced.ゴ ル フ 場,Auto campsiteThere was a plan to make it a large park with such things.But the opposition movementBubble economyWith the end of multiple golf coursesBaseball field-Tennis courtOnly the playgrounds such as the auto campsite were constructed, and the construction of the auto campsite was not started.The Watarase Yusuichi Acrimation Promotion Foundation was established to manage and operate facilities based on the Acrimation Land concept.Third sectorIs. In 2017 (Heisei 29), the logo mark of Watarase Retarding Ground was created.[6].

In "Toward the Future of Watarase Retarding Ground" in Kazo City, Saitama Prefecture and Itakura Town, Gunma Prefecture, 29Handmade local prizeHas been awarded[7].

Current retarding basin

Since there is a road in the playground, it is possible to go inside except where water is stored.

Water control

Originally a facility for flood control purposes, the entire facility becomes flooded immediately after rainfall.Tone RiverThe system is such that the water of the Watarase River, which cannot be completely drained, is temporarily stored in this area, and after the water level of the Tone River drops, the water stored in the playground is gradually discharged.Therefore, it is dangerous to enter the playground during and after rain.

Other

Fujioka Town Chamber of Commerce and Industry to the north of Lake Tananaka,Agricultural cooperativeHas opened a store,barbecueThere are places where you can do it (except on weekdays and winter).ゴ ル フ 場There are also multiple.

Rental BicycleIt is,Roadside station Kazo Watarase-Watase Nature Museum(Itakura Toyodaimae Station East), Watarase Yusuichi Wetland Museum (Fujioka Station East), Yanaka Hubei Children's Square Rental Cycle Center (There are regular holidays. Some places are not open during winter and weekdays).

These areas are only part of the Watarase Retarding Ground, and most of the rest is still rich in nature.AshiharaIt has become.Fireworks displayIn addition to being a venue such asHigh voltage lineSince there are no electric wires other than grazing, Skyfield Watase (Fujioka)Off-airfield) Is permanently installed,hot air balloon-sky diving-Ultralight motiveSuch asSky sportsIs also done,triathlonMany competitions are also held.

Annual event

* Events that are held every year.

  • January-April-Lake Tananaka dried up (as shown below)Water supplyCauses an offensive odorplanktonWork to empty the water of Lake Tananaka once to kill it.Water sports cannot be done at this time)
  • Early March --Lake Tananaka Experience interacting with fish (Fureai Mobile Aquarium, etc./Fujioka Retarding Pond Hall Square, Tochigi City)
  • Late March- ReedGrilled
  • Early April-Fujioka Town Sakura Festival
  • Early April-Watarase Balloon Race (Hot-air balloon Honda Grand PrixRound 1)
  • First Saturday of August-Furukawa Fireworks Festival (held at "Furukawa Golf Links" on the riverbed of the Watarase River in Koga City, Ibaraki Prefecture. The number of launches is about 8 (including 1 three-scale balls) and about 25,000 people. There is a crowd of people)
  • November-Retention basinmarathon(1986-2004. Abolished after 2005)
  • December-Watarase Cup "December Wind" (hot air balloon competition)

In addition, nature conservation groups and others are holding their own events here.Yacht racing,triathlonCompetitions may also be held, but not always every year.

Lake Tananaka

Lake Tananaka(Yanakako) has a lake bottomconcreteTensionArtificial lakeAndCapital AreaWater jarTone River upstream damsIt is counted as one of the reservoirs and is positioned as a reservoir for supplying water to the Tokyo region during droughts.There is no tall embankment, and the Ministry of Land, Infrastructure, Transport and Tourism explains that it is a "flatland dam."[8].1976(Showa 51) Construction started,1989(XNUMX) Completed.

Immediately after its inauguration1990In the summer (2), there was a flood of complaints that the tap water in the downstream became odorous when the water was discharged from Lake Tananaka.Causes an offensive odorplanktonSince 2004, Lake Tananaka has been emptied and dried once a year in order to kill it.Advanced water purification treatmentWith the introduction of, there has been no similar commotion since then.In addition, water sports cannot be performed at this time.

Recreational fishing feeWhile needingfishingAnd non-powered vessels can also be used.Because of this kind ofウ ォ ー タ ー ス ポ ー ツIs flourishing, and the 59th National Athletic Meet (Sai no Kuni Makoto National Athletic Meet)soSailingA competition was also held.

It is often misunderstood that the Watarase Retarding Ground is Lake Tananaka, but Lake Tananaka is a reservoir in the first regulating reservoir in the Watarase Retarding Ground.The whole name is Watarase Retarding WaterGroundAnd the name of Lake Tananaka is Watarase Retarding Wateræ± It may be mistaken for.However, as will be described later, Watarase Retarding WaterGroundAnd Watarase Retardingæ± Is synonymous with.Lake Tananaka is also known as the Watarase Reservoir.

Due to its shape of Lake Tananaka, it is nearbyFormer Shimono Brick Manufacturing Company Brick KilnWith the name of "Nogi Town Brick Kiln & Heart Pond"Lover's sanctuaryCertified on May 2017, 5,Aoyama St. Grace CathedralThe nameplate award ceremony was held at[9].

(I.e.

Ruins such as the site of Yanaka Village Office and the site of Raiden Shrine are located in the north of Yanaka Hubei.There is a Yanaka village joint memorial monument on the outside of the embankment.

Prefectural border confirmation work

2016In January, the land associated with the development of the Watarase Retarding Ground so farLand readjustmentTochigi Prefecture remains unclear as a result ofTochigi City),Gunma Prefecture(Ora-gunItakura Town),Saitama(Kazo City) A survey survey was conducted jointly by Tochigi City, Itakura Town, and Kazo City to determine the boundary points of the three prefectures.[10].. Of 3 prefecturesPrefectural borderWas originally in the Watarase River, but the original boundary became unclear due to a long-standing land readjustment project.Boundary undecided areaIt was.It is rare in Japan that there is a boundary point between three prefectures on a flat land, and the local governments in the surrounding area have established an accurate boundary point and made it a new tourist spot that makes the best use of historical heritage and the natural environment.[11]..Prefectural border determination work was completed by March of the same year, and on March 3, at Kazo City Hall, Tochigi City, Itakura Town, and Kazo City 3ChiefHeld a signing ceremony for the demarcated document[10].

NATURE

Because it is isolated from human activityWild birdThere are many,昆虫-FishesEtc. are also collected.There are also many rare plants.Ministry of the Environment OfRed data bookPublished inEndangered speciesHas also been found in large numbers.Therefore, in May 2012, the Ministry of the Environment announcedRamsar ConventionDesignated Watarase Retarding Ground as one of the candidate sites for new registration of wetlands[12]Was officially registered at the 7th Conference of the Parties to the Ramsar Convention held in Romania in July of the same year.[1].

According to the Watarase Yusuichi Acrimation Foundation, there are 43 species of plants listed in the Red Data Book.

Almost the entire area except the reservoirreedIt is the original.Every MarchYoshizuThe Watarase Retarding Ground Utilization Association, which is organized by producers, is grilled with Yoshi (Burning)It is carried out.With artificial open burningVegetation successionIs one of the reasons why many endangered species remain as a result.With YoshiyakiFirst in springWhen the strong winds ofUtsunomiya City,Kanuma CityThe sky may become dark or ash fall may be seen up to the central area of ​​Tochigi prefecture.[13]..In addition, it was brewed with Yoshiyaki.boarMay appear in nearby residential areas[14].

When relocating Yanaka villagers, Tochigi Prefecture granted the former villagers the right to mow Yoshi and Kaya exclusively here.However, it was not confirmed in writing.After that, Fujioka townspeople other than the old villagers set the right to mow Yoshi and Kaya here.From 1920 to 1921 in the Taisho era, the two glared at each other in the retarding basin (called the Kaya mowing case or the Yoshi mowing case).Old villagersLawyerIt turned out that the old villagers originally had the exclusive right under the law at that time, even if there was no written evidence.This was also recognized in the trial.For this reason, even now, neighboring farmers are cutting the pragmites that grow in this area and making pragmites.However, recently, production has been declining due to being pushed by cheap Chinese Yoshizu.

Private citizensMinistry of ConstructionAccording to the investigation (at that time), it is said that the concentration of copper in the soil impairs the growth of crops125.ppmThere is a point that exceeds.However, there have been no reports of conspicuous poor growth of plants at specific points.

There are 33 species of inhabiting fish.However, there are only about 20 native species, and most of them.KoiIt is a family.black busHas been transplanted since the latter half of the 40's,The population seems to be stable, and it is quite difficult to aim and fish with a lure.[Original research?]..Unexpectedlyボ ラ,Japanese sea bassHas settled up from the sea.

development of

Since the area of ​​this playground is vast, there have been several opinions insisting that it be used for other purposes.After the war in 1952Security forces(Japan Ground Self-Defense ForcePredecessor)exerciseOn the ground, in 1962U.S. ForcesThere was a plan to make it a training ground, but none of them was realized due to the opposition movement. In 1990SaitamaGovernorHatawaHowever, artificial ground was laid on this land,Tokyo Metropolitan Area No. 3 International AirportI have proposed the idea of ​​building "Watarase Airport".However, many former landowners and their bereaved families live in the area, making it virtually impossible to use. Even when Lake Tananaka was created in 1972, there was a fierce opposition movement, and as a result, the design of what was planned to be round was changed to a heart shape.

There was a plan to build a second reservoir in the second control pond, but construction was not started due to a lot of opposition from wild bird observers.For this reason, Lake Tananaka, which was originally supposed to be called the "No. 2 Reservoir", is now called the "Watarase Reservoir" without the "No. 2".

However, in November 2005,Ministry of Land, Infrastructure, Transport and TourismAnnounced that there is a policy to start construction of the second reservoir.In response to this, there were opinions against the surrounding nature conservation groups.[15]..After that, it virtually disappeared due to the 2010 Watarase Retarding Ground Wetland Conservation and Regeneration Basic Plan.[16].

Name

This area is not clearly named and is wateræ± Or Watarase RetardingGroundWas called. Maps of the early 20th century often do not show anything, and the notation that first appeared on official maps was simply Yusui.æ± It is said that it was (4 revised map "Furukawa").However, it is currently unified to the latter notation.It is said that it was unified around 1987, when the reification concept was materialized.

In 4, before the revised map "Furukawa" in 1925,Ministry of InteriorIn the official document "Watarase River Repair Work Overview", "YusuiGroundIs used[17].

The notation is still confusing about the proper nouns that were added before the notation was unified.For example, it has jurisdiction over Watarase Retarding GroundJapanese GovernmentInstitutionMinistry of Land, Infrastructure, Transport and TourismTone River upstream river office Watarase Yusuiæ± Although it is a branch office, it is Watarase Yusui that is actually managed and operated.GroundIt is an acrimation promotion foundation.In addition, the name of the building where the Watarase Yusui Auction Promotion Foundation is located is Yusui.æ± It is a hall.The name of the branch office is Yusuiæ± However, when the Ministry of Land, Infrastructure, Transport and Tourism indicates this area, Watarase Retarding WaterGroundIs used.

Some NPOs are Watarase Retarding WaterGroundAgainst the use of the name, even now (2006) is actively playing wateræ± Is used.This is intended to convey to posterity how the retarding basin was installed.

Retention basin function

Some of the embankments in the retarding basin were intentionally made low, and when the water level increased, water was intentionally guided toward the regulating pond, and the amount of inflow water to the Tone River, which joins the lower reaches of the Watarase River, was suppressed. It is a mechanism to prevent floods in the basin.

Hydraulic effect

The function of the Watarase Reservoir and the effect of this on hydraulic control affected Japan from October 2019 to 10, 12.First Year of Reiwa East TyphoonTake (Typhoon No. 19) as an example.

According to the announcement (preliminary figures) of the Kanto Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, the Watarase Retarding Ground has accumulated a flood of about 1.6 million cubic meters due to the rain caused by the typhoon in eastern Japan.This is about 1.7 million tons xeen of the total storage capacity of the playground.[Note 1]It is about 95% of.In addition, according to the Asahi Shimbun report (October 10), experts analyzed the flooding situation of rivers from the sky.A large amount of water flowed into the Watarase Retarding Ground.However, at the Kurihashi Observatory in Kuki City, Saitama Prefecture, where the Watarase River joins the Tone River, the water level exceeded the flood risk level of 14 m from 13 am to 1 am on the 10th, but it was separated from the Tone River and Tokyo Bay. Pour intoEdogawaDid not reach the flood risk level[18].

Downstream from Watarase Retarding Ground, after merging with the Tone River,EdogawaDivides and pours into Tokyo Bay.When the inflow of water from the upper reaches of the Watarase River is large and the Watarase Retarding Ground is full, the Edo River will also rise, but it is a tributary of the Tone River.AzumagawaToYatsuba Dam(The water storage capacity is about 7,500 million cubic meters. At the time of the typhoon, the test flooding) made it possible to temporarily stop a large amount of rain that fell in the upper reaches of the Azuma River.As a result, the load on the hydraulic control of the Watarase Retarding Ground can be reduced, and it becomes easier to quantitatively control the water flow in the regulating pond.[19].

footnote

[How to use footnotes]

注 釈

  1. ^ "Ton" = "m"3'

Source

  1. ^ a b "About Watarase Retarding Ground and Ramsar Convention". Oyama City Home Page. 2022/4/22Browse.
  2. ^ History of Watarase Retarding Ground Watarase Yusuichi Acrimation Promotion Foundation Retrieved July 2020, 7.
  3. ^ Itakura Town Official Homepage Itakura Town Rental Cycle Center
  4. ^ "Tourism / History Furukawa City Tourism Pamphlet (PDF)”. Koga City. As of December 2013, 12originalMore archives.2022/4/22Browse.
  5. ^ The origin of Watarase Retarding Ground 4 Yanaka VillageWatarase Yusuichi Creation Promotion Foundation. Retrieved July 2020, 7.
  6. ^ Tone River upstream river office
  7. ^ "General Division Towards the future of Watarase Retarding Ground (PDF)". Minister of Land, Infrastructure, Transport and Tourism Commendation Handmade Hometown Prize. 2022/4/22Browse.
  8. ^ "Dam card (Kanto region)". Water and Disaster Management Bureau, Ministry of Land, Infrastructure, Transport and Tourism. 2022/4/22Browse.
  9. ^ ""Nogi Town Brick Kiln & Heart Pond" has been selected as a "Lover's Sanctuary"!". Nogi Town Hall. 2019/7/31Browse.
  10. ^ a b "Signing ceremony with the three prefectural borders of Saitama, Tochigi, and Gunma confirmed". NHK.As of August 2016, 3originalMore archives.2022/4/22Browse.
  11. ^ "Ambiguous prefectural border, Saitama, Tochigi, Gunma to be confirmed by survey: Society”. Yomiuri Shimbun. As of July 2015, 12originalMore archives.2022/4/22Browse.
  12. ^ "Ramsar Convention Wetlands Candidates for New Registration (Notice)”. Ministry of the Environment (August 2012, 5). 2012/5/11Browse.
  13. ^ ""The color of the sky is strange" Reported even in the center of the prefecture, ash expansion at the beginning of spring or Yoshiyaki”. Shimotsuke Shimbun (November 2022, 3). 2022/4/23Browse.
  14. ^ "Is it the influence of wild boar, female bite, minor injury Nogi, and Yoshiyaki in the city?”. Shimotsuke Shimbun (November 2022, 3). 2022/4/23Browse.
  15. ^ Kanuma Dam-Watarase Retarding Ground No. XNUMX Reservoir Plan Resurfaced(As of January 2006, 4Archive)
  16. ^ Watarase Retarding Ground Tour Material February 2020, 2.Tone River Basin Residents' Council to Protect Watarase Retarding Pond Retrieved July 2020, 7.
  17. ^ "Outline of Watarase River repair work (PDF)". Civil Engineering Library Digital Archives Books related to the Ministry of Interior. p. 12. 2022/4/22Browse.
  18. ^ [Typhoon No. 19] The regulating pond in the Tokyo metropolitan area is barely ... 9% reached, and the crisis was imminent | Sankei News
  19. ^ The secret story of the birth of Watarase Retarding Ground, which stores water from the Yamba Dam

References

  • "Fujioka Town History Documents: Nature of Watarase Retarding Ground" Fujioka Town 2002
  • "New Watarase Retarding Pond" Tone River Basin Residents' Council 2005 to protect Watarase Retarding Pond ISBN-4 88748-127-6
  • Tadashi Suetsugi, "River Science", Natsumesha, October 2005, 10, first edition, publishedISBN 481634005X

Related item

外部 リンク

National Route 50

National Route 50(Kokudo 50)GunmaMaebashiからIbarakiMitoLeading toGeneral national road.

Overview

Along the lineNorth KantoThe population density of the three prefectures is relatively high, and along the railway linesInland industrial areaThere is always a certain amount of traffic, partly because of the continuous traffic.Various bypasses have been established in Tochigi Prefecture (""bypass”) The grade separation is continuous,Oyama CityExcept for some areas, such as streets, there are sections where you can drive comfortably with good flow.On the other hand, the undeveloped two-lane section that remains in Gunma and Ibaraki prefectures has a chronically poor flow.

In Gunma prefecture, in parallel with this roadNorth Kanto ExpresswayHas been improved, and traffic congestion has been somewhat eliminated in the two-lane section of Gunma Prefecture.[1]..However, in Tochigi and Ibaraki prefectures, the parallel section between this road and the Kita Kanto Expressway is short.You can drive relatively comfortably in Tochigi prefecture due to the bypass maintenance mentioned above, but in Ibaraki prefecture.YukiでYuki BypassIs completed,ChikuseiAt the innerShimodate BypassIs under construction, and the area around Sakuragawa Chikusei Interchange has been widened (Iwase BypassThere are many two-way roads, and the flow is poor.

The Kita Kanto ExpresswaySano Tanuma IC - Kiryu Ota ICBetween20113/19With the opening of, the entire line will be opened,Track,busSuch asLarge VehicleIt is hoped that passenger cars and other vehicles that travel long distances will use that road, so it seems that the congestion on this road will be eliminated.However, the Kita Kanto Expressway does not pass through Oyama City.Near Utsunomiya CityPass through.

All linesDesignated sectionIs specified in.

Route data

Cabinet Order Designating Routes of General National Roads[2][Annotation 1]The start and end points based on the above and important transit points are as follows.

History

  • 1953(Showa28 years)5/18 - Second-class national highwayDesignated as No. 122 Maebashi Mito Line (Maebashi City, Gunma Prefecture-Mito City, Ibaraki Prefecture).
  • 1963(38)4/1 --Promoted second-class national highway No. 122,First-class national highwayRedesignated as No. 50 (Maebashi City, Gunma Prefecture-Mito City, Ibaraki Prefecture).In addition, with the change of numberNational Route 122Is Tochigi prefectureNikko - TokyoToshimaIt becomes a section of.
  • 1965(40) April 4-The revision of the Road Law eliminates the distinction between first-class and second-class roads, and becomes General National Highway No. 1 (Maebashi City, Gunma Prefecture-Mito City, Ibaraki Prefecture).
  • 1970(45)2/19 --Oaza Mito, Iwase-cho, Nishi-Ibaraki-gun, Ibaraki --- Due to road improvement in Inada, Kasama City, the old road (10.3 km) was transferred to the prefecture.[4].
  • 1972(47)7/8 - Kasama BypassAll lines (Kasama City Oaza Iigo-Oaza Kasama) opened[5].

Route status

alias

  • Komonsan Street (Mito City, Ibaraki Prefecture)

Bypass road

Overlapping section

  • National Route 122(Kiryu City, Gunma Prefecture, Hirosawacho XNUMX-chome Intersection-Ota City, Gunma Prefecture, Tadakari Intersection)
  • National Route 400(Intersection in front of Chuo Post Office, Mito City, Ibaraki Prefecture-Intersection in front of Mito Station, Mito City, Ibaraki Prefecture)

Road facilities

Main bridge

  • Gunma
    • Kannon Bridge (Momonoki River, Maebashi City)
  • Tochigi
  • Ibaraki

Road Station

Traffic volume

24-hour automobile traffic volume (vehicles / day)[6]

locationNumber
5-2-XNUMX Mikawacho, Maebashi City, Gunma Prefecture40,393
1268-1 Higashiomuromachi, Maebashi City, Gunma Prefecture22,593
3818-XNUMX Hirosawa-cho, Kiryu-shi, Gunma41,497
1054 Takahashi-cho, Sano City, Tochigi Prefecture48,381
751 Kamiizumi, Oyama City, Tochigi Prefecture37,500
981 Inuzuka, Oyama City, Tochigi Prefecture44,705
Yuki City, Ibaraki Prefecture18,338
311 Uenoharachi Shinden, Sakuragawa City, Ibaraki Prefecture23,649
528 Kamobe, Sakuragawa City, Ibaraki Prefecture16,631
4482 Obara, Kasama City, Ibaraki Prefecture22,873

Geography

Municipality to pass through

Crossing road

Those without special mention of intersecting roadsCity road.

Gunma prefecture section
Crossing roadIntersection name
Gunma Prefectural Office
National Route 17National Route 17
National Route 291
MaebashiHonmachi XNUMX-chome
Prefectural Road No. 17 Maebashi Stop LinePrefectural Road No. 4 Maebashi Akagi Line(Inside Honmachi 2-chome)
Prefectural Road No. 2 Maebashikanbayashi LineHonmachi XNUMX-chome
Prefectural Road No. 40 Fujioka Oko LineKojimada Town
National highway No. 17 (Jobu Road)Imai Town[Annotation 4]
Prefectural Road 74 Isezaki Oko LineNinomiya Town
Prefectural Road 114 Naegashima Iidoi LineHigashiomuromachi west
Prefectural Road 103 Fukatsu Isezaki LineHigashi Omuro Town
Prefectural Road No. 352 Kasagake Akahori Imai LineIsesaki CityAkahori Imaicho
Prefectural Road 73 Isezaki Oma-ma Line
Prefectural Road No. 102 Miyazawa National Station Line
Prefectural Road 73 Isezaki Oma-ma Line
Prefectural Road No. 76 Maebashi Nishikubo Line
Prefectural Road No. 102 Miyazawa National Station Line
Nishikubocho
Prefectural Road 293 Kobayashi Haguro LineMagarisawacho
Prefectural Road 291 Sakaikijima Oma-ma LineAkaborikashimacho
-Prefectural Road No. 352 Kasagake Akahori Imai LineGreen cityKasagake Elementary School
Prefectural Road 69 Oma-Serada Linedeer
Prefectural Road 344 Azami Kiryu LineComprehensive ground east
Prefectural Road No. 78 Ota Omayama LineIwajuku
Prefectural Road 68 Kiryu Isezaki LineAzami Pond entrance
National Route 122
National Route 353
Prefectural Road 332 Kiryu Nitta Kizaki Line
KiryuHirosawacho XNUMX-chome
Under the Hirosawa Viaduct
Prefectural Road 332 Kiryu Nitta Kizaki LineHirosawacho police box
Prefectural Road 316 Ota Kiryu LineMatsubara Bridge
Prefectural Road No. 254 Maruyama Haka LineOta CityHarajuku Minami
Prefectural Road 39 Ashikaga Isezaki LineTadakari
National Route 122Prefectural Road No. 256 Ryumai Yamamae Stop Line只上
Tochigi prefecture section
Crossing roadIntersection name
National Route 407
Prefectural Road No. 5 Ashikaga Ota Line
Prefectural Road No. 256 Ryumai Yamamae Stop Line
Prefectural Road No. 5 Ashikaga Ota LineAshikagaMinami Omachi
Prefectural Road 38 Ashikaga Chiyoda LineHorigomecho
National Route 293In front of the public market
Prefectural Road 128 Sano Ota LineKamishibutarecho
Prefectural Road No. 20 Ashikaga Yuraku Gyoda LineKubota Town
Prefectural Road No. 148 Noda Tatara Stop Line(In Kubota Town)
Prefectural Road No. 8 Ashikagakan Hayashi LineMizuhonocho
Prefectural Road 223 Teraokakan Hayashi LineSano CityTakahashi
Prefectural Road No. 7 Sano Yukita LineTajima Inter
Prefectural Road No. 9 Sano Furukawa LineTakahagi
Tohoku ExpresswaySano Fujioka IC
Prefectural Road 168 Shizutooka LineTochigi City(In Iwafune Town Shizuchi)
Prefectural Road No. 11 Tochigi Fujioka LineQuiet
Prefectural Road 160 Izumi Makita LineKoigashima
Prefectural Road No. 252 Hiranuma River LineNishimizuyo
Prefectural Road 174 Minami Kobayashi Matsubara LinePrefectural Road 153 Minamiobayashi Tochigi LineOyama CityShimokawarada
Prefectural Road No. 33 Oyama Loop Line
Prefectural Road 173 Hagishima Shiratori Line
萩島
-Prefectural Road No. 36 Iwafune Koyama Line
Prefectural Road 264 Oyama Yuki Line
Daigyoji
National Route 4Hitotonoya
Prefectural Road 265 Awamiya Kizawa LineHitotonoya (East)
Prefectural Road No. 191 War Defense Koyama LinePrefectural Road 339 Oyama Shimono LineEkinan 4-chome
Prefectural Road No. 33 Oyama Loop LineYokokura Shinden
Ibaraki prefecture section
Crossing roadIntersection name
New Route 4YukiOtabayashi (west)
-Prefectural Road No. 15 Yuki Shimotsuma LineOtabayashi
Prefectural Road No. 17 Yuki Noda LineJonan Kohoku
Prefectural Road No. 20 Yuki Bando LineKanakubo Sports Park entrance
Prefectural Road No. 15 Yuki Shimotsuma LineKomori Kita
Prefectural Road 303 Funatama Kawashima Stop LineChikuseiXiachuan Island
-Prefectural Road 304 Ogawagawashima Stop Line(Inside Nunokawa)
National Route 294
National Route 408
Nishiyagai
Prefectural Road 305 Shimodate Stop Line(I.e.
Prefectural Road No. 7 Ishioka Chikusei LineSakuramachi
Prefectural Road No. 14 Chikusai Tsukuba LinePrefectural Road 207 Takada Chikusai LineYokoshima
Prefectural Road 149 Yokotsuka Makabe Line-(Inside Yokotsuka)
Prefectural Road No. 45 Tsukuba Maoka Line門井
Prefectural Road 148 Higashiyamada Iwase LineSakuragawa長方
-Prefectural Road 216 Iwase Ninomiya Line(Inside the rectangular area)
North Kanto ExpresswaySakuragawa Chikusei IC
Prefectural Road 41 Tsukuba Masuko Line-鍬田
-Prefectural Road 41 Tsukuba Masuko LineFormer Iwase
Prefectural Road 307 Iwase Stop Line-(In Asuka 2-chome ground)
Prefectural Road 140 Nishikobashi Ishioka LinePrefectural Road 257 Nishikobashi Maoka Line(In Tomobe)
Prefectural Road No. 64 Tsuchiura Kasama Line-Kasama City(In Fukuhara)
Prefectural Road 109 Inada Tomobe LinePrefectural Road 289 Tomiya Inada LineInada
Prefectural Road No. 1 Utsunomiya Kasama Line(I.e.
National Route 355寺崎
Prefectural Road 39 Kasama Ogawa LineKanai
Prefectural Road 61 Hitachi Kasama LineSaiki
Prefectural Road 193 Sugisaki Tomobe LineMitoSankenya
Prefectural Road No. 52 Ishioka Castle LineUchihara Overpass Bridge North
Joban ExpresswayMito IC
-National Highway No. 50 (Mito Bypass)The edge of Otsukaike
Prefectural Road 59 Tamari Mito LineIn front of Akatsuka Post Office
Prefectural Road No. 171 Ishikawa Hazuka LineShinhara Sansaro
Prefectural Road 177 Akatsuka Maguchi Labor LineJiyugaoka
Prefectural Road No. 30 Mito Iwama Line-Daikumachi 2-chome
Prefectural Road No. 342 Kamimito Stop Senba Koen LineCarpentry
-National Route 118
National Route 400
In front of the central post office
Prefectural Road No. 50 Mito Shinsu Line-In front of Mito station
National Route 51
National Route 124
National Route 245

Gallery

footnote

[How to use footnotes]

注 釈

  1. ^ Notation based on the Cabinet Order of March 2004, 3 (Cabinet Order No. 19 of March 16, 3), which is the last revision date of the Cabinet Order designating general national highway routes.
  2. ^ On March 2005, 3, it merged with Sekijo-cho, Akeno-cho, and Kyowa-cho, Makabe-gun.ChikuseiBecomes
  3. ^ a b c d e f g As of July 2020
  4. ^ From Maebashi, you can only go to Kumagaya.

Source

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