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Department of Civil Engineering

The last update date:
Aso Area Promotion Bureau 
TEL: 0967-22-1110 
FAX: 0967-22-4103 
Email [email protected]

In Department of Civil Engineering, we perform maintenance of road linking tourist attractions of not only community road but also Aso area comfortably and maintenance repair, maintenance of river and erosion control facility, also, to protect life, property from disaster, instruction to let building certification or advertisement adapt themselves to neighboring sceneries more positively.

Road (the making of road which is comfortable by security)

Our roads in the jurisdiction play a role that is important as road letting you activate interchange of Kumamoto, Fukuoka, Oita, Miyazaki again as access road to many sightseeing spots including Aso kuju national park not only as community road of local resident.
In addition, we work on security of security and comfortable traffic through the year as Aso area is the one of the best rain snowfall zones in prefectural bottom and is placed under severe climatic condition.

Route 442 regional alliances promotion reconstruction business (Kurokawa bypass)

It is highway reaching Okawa-shi, Fukuoka via Minamioguni-machi, Kumamoto, Oguni-machi starting from Oita-shi, Oita, and this line is important line supporting life of industry, economy, sightseeing, area of Kyushu middle northern district.
Most of this line pass mountainous district part, and bad linearity that it is narrow, and it is expected continues, and early improvement is strongly expected by increase of recent traffic.
Thus, business started from 1996, and the whole line service started regular employee ward (L = 2.2 kilometers) of the shallows in April, 2005. About remaining Kurokawa mechanic ward (L = 2.3 kilometers), we promote business for the early whole line service.

Route 442 (bridge photograph around the book of the Minamioguni-machi shallows)    Route 442 (road photograph of Minamioguni-machi Kurokawa)
      Route 442 (book of the Minamioguni-machi shallows)                Route 442 (Minamioguni-machi Kurokawa)

 Route 442 plan ground plan                                                                     [explanatory notes] Red : During maintenance, it is blue : Under service

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 Kumamoto Aso highway maintenance business

We start from main country path Kumamoto gain castle Otsu Line and intersection with general prefectural road temple garden Komori line, and Kumamoto Aso highway is road reaching Route 325 via Tawarayama of main country path Kumamoto Takamori Line.
Moreover, we strengthen notification of Aso Kumamoto Airport and Minamiaso area and carry activation such as industry, economy, sightseeing of Minamiaso area, and, in this line, traffic jam relaxation of Route 57 is expected Kumamoto urban area and gain castle Kumamoto Airport IC.
In this business plan sections, we start about Tawarayama bypass (L = 6.0 kilometers) from 1993 and we offer open in 2003 and start. About Komori - mulberry crane mechanic ward (L = 5.87 kilometers), we start from 1990 and we offer open in 2005 and start.
In addition, traffic rapidly increases with opening of Tawarayama bypass and, about Futa, Nishihara-mura district (L = 1.9 kilometers), we start the existing way widening business in 2006 and work on realization in early stage of business effect because problems such as increase of traffic jam, traffic accident occur in particular between Otari, Mashiki-machi - Komori, Nishihara-muras.

Aerial photograph of main country path Kumamoto Takamori Line Tawarayama Tunnel
Main country path Kumamoto Takamori Line Tawarayama Tunnel

Kumamoto Takamori Line Tawarayama Tunnel plan ground plan

Route 212 social capital maintenance synthesis grant business (disaster prevention)

Route 212 starts from Nakatsu-shi, Oita and, via Hita-shi, Oguni-machi, Minamioguni-machi, is highway which assumes Aso-shi terminal.
We confirm 19 road black spots by road disaster prevention overhaul that a lot of sections which this line threads through the steep topography, and run performed for Heisei eight or nine years. Ten road black spots are concentrated in particular in abnormal weather current events main street line regulation section (closed by 200 millimeters of consecutive precipitations) between Tsuetate, Oguni-machi - Xiacheng appointing.
Therefore, we launch this business from 1998 and complete measures of 13 road black spots (nine places in house regulation section) by 2009.       
From point of view securing traffic function of road and safety, we push forward measures for cancellation of road black spot continuously in the future.

Photograph after before Route 212 measures and measures
                    The next before Route 212 measures

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The making of relief, safe way (the maintenance situation)

In Aso Area Promotion Bureau, road having various characteristics such as important line linking prefecture, sightseeing line binding sightseeing base together, steep line going along the mountains, life line that is essential for various places of inhabitants exists on maintenance, road managing.
In Department of Civil Engineering, we make these road 44 lines, extension and maintain about 500 kilometers and manage and work on security of security and comfortable traffic.

Pavement repair business of road and bridge repair business 

Road and bridge of Aso area are exposed to severe condition including overload by trailer bus increase because of sightseeing spot in addition to strictness of natural conditions such as icy roads or the snow by cooling of the winter season. As progress of deterioration is early, under this severe condition, we push forward repair such as pavement or bridge so that more comfortable run is provided.

Photograph of Route 325 pavement                                  Route 212 bridge
           Route 325 pavement                                                            Route 212 bridge

 The snow removing and traffic regulation on road at the time of snowfall

As Aso Area Promotion Bureau jurisdiction is of high altitudes, the snow is seen from December through March. The snow was seen in April in 2007. The snow is in place becoming several meters (north outer rim of a volcanic crater Otsu Line (popular name of H23.1.17: as for milk road) the snow of 2.5m) depending on the weather and the topography condition. Therefore, we spray snow meltings agent such as the snow removing, calcium chloride by graders, and traffic obstacle by the snow, freeze takes measures. In addition, we perform road traffic regulation when we affect traffic by the snow and icy roads.

        Aso Park Kikuchi Line (under an alias: Kikuchi Aso skyline, H22.12.27) north outer rim of a volcanic crater Otsu Line (under an alias: milk road, H23.1.7)

     Aso Park Kikuchi Line 221227                 North outer rim of a volcanic crater Otsu Line 230107 

         North outer rim of a volcanic crater Otsu Line (under an alias: milk road, H23.1.17)               Amase Aso Line (H23.1.17)

     North outer rim of a volcanic crater Otsu Line 230117                 Amase Aso Line 23011701

         North outer rim of a volcanic crater Otsu Line (under an alias: milk road, H23.1.7)               Yoshida, Aso Line (H23.1.16)

            Amase Aso Line 23011702                 Yoshida, Aso Line 230116

 

Other maintenance situation

Repair, weeding of road surface

Repair photograph of Takamori Namino Line (Hano, Aso-shi Koike field) road surface Photograph of Route 265 (Aso-shi new Namino) weeding
Takamori Namino Line (Hano, Aso-shi Koike field)         Route 265 (Aso-shi new Namino)

 

River (the making of base protecting life, property)

Towards waterside space loved by many people such as creation of living environment which the formation of safe social infrastructure to protect life, property of local resident from abnormal floods caused by heavy rain, water and green that, moreover, considered natural environments are rich in, we work on river repair in each place.

Kurokawa basin river improvement measures river repair business

With severe flood of 1990, we work on river repair business of Kurokawa and push forward river improvement construction by play Suichi construction of each district including Uchinomaki. When all these play Suichi is completed, around once in 50 years even if there is a heavy rain, do not come to overflow.
Small going hunting Suichi is completed Uchinomaki play Suichi in 2005 in 1994 and is building no fertility rite representing the process of rice-growing Suichi now.

Photograph of Uchinomaki play Suichi
Uchinomaki play Suichi

Photograph of no fertility rite representing the process of rice-growing Suichi

Figure of image at the time of heavy rain Figure of river

 Momiki River (momikigawa) river disaster allied enterprise

By seasonal rain front heavy rain (up to 87 millimeters of time) of July 10, 2005, Oguni-machi suffered serious damage. We worked in particular in improved "disaster allied enterprise" to restore between series wards including weak part, stenosis part because we suffered damage for rips of building a breakwater in the Momiki river water system over a wide area and could not expect restoration that was enough by correspondence (the original form restoration only for damaged point) by normal disaster-relief project.

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 Erosion control (the making of base protecting life, property)

It protects holy human life and property from the earth and sand disasters such as mud flood, landslide, landslide to occur at the time of torrential rain, and it is erosion control business that aims at the formation of community to be able to live in in peace while planning harmony with environment. We add to maintenance on tree brought down by the wind and erosion control hardware surface for mud flood measures including bank not to get and act as establishment of the communication system for caution evacuation for mud flood or volcanic eruption in enhancement in software aspect.

New Yukawa (shinyugawa) other 4 mountain stream erosion control disaster measures particularly urgent business

In new Yukawa other 4 mountain stream located in Oguni-machi, mud flood including a large quantity of driftwood occurred by torrential rain accompanied with seasonal rain front heavy rain of July 10, 2005, and downstream houses suffered great damage. We maintained this business by installing bank (H18 - 20) which did not get erosion control that the unstable earth and sand left upstream flowed out and to be targeted for downstream maintenance and did not yet cause damage to create the safe from the earth and sand disaster and reliable situation.

Yamauchi Kawano River
After Yamauchi Kawano River restoration

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 hakukawasuikeisenkawa (sosogawa) volcano erosion control business

hakukawasuikeisenkawa is located in Takamori-machi, Aso-gun and is mud flood danger mountain stream with house and national highway, town road as maintenance object. Because we have process of the earth and sand disaster occurrence in the past, and damage is expected in future, we start this business from 2006 and maintain bank which does not get erosion control.

From Route 265 photograph on the downstream side
From Route 265 the downstream side

Photograph than Route 265 of upper reaches
Side than Route 265 of upper reaches

 To protect the body from the earth and sand disaster (approach by the prevention of earth and sand disaster method)

The earth and sand disaster refers to mud flood, landslide, landslide. The earth and sand disaster occurs in the prefecture mainly on time and typhoon approach time in the rainy season. We clarify area with the risk with hardware measures such as prevention of earth and sand disaster construction in addition to protect life, body of inhabitants from such a disaster, and software measures such as location restraint such as maintenance of the caution evacuation system or new house to black spot are necessary in that and push forward designation of black spots in the Aso Area Promotion Bureau jurisdiction.

Photograph of tide Igawa disaster-related urgent erosion control business Photograph of Kitasato River disaster-related urgent erosion control business

Photograph of vermiculite river disaster-related urgent erosion control business Photograph of Yamauchi Kawano River disaster-related urgent erosion control business

Photograph of Minamidaira River disaster-related urgent erosion control business
1. Tide Igawa disaster-related urgent erosion control business
2. Kitasato River disaster-related urgent erosion control business
3. Vermiculite river disaster-related urgent erosion control business
4. Yamauchi Kawano River disaster-related urgent erosion control business
5. Minamidaira River disaster-related urgent erosion control business

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We work on beautification of river, road, scenery by volunteer

Road clean volunteer business

This business lasts more than about 100 meters at the sidewalk and safe place including tree planting zone among roads which the prefecture manages and intends for beautification activities such as cleaning, weeding, planting performed by volunteer. We perform support such as installing signboard publicizing participation, activity to volunteer insurance that it comprises for issue of cleaning tools such as garbage bag or broom and working unexpected accident when we have you register as volunteer. 

Kumamoto my river support business

This business passes more than about 100 meters in riverbed of river which the prefecture manages and intends for beautification activities such as cleaning, weeding, planting. As well as road clean volunteer, we perform support such as installing signboard publicizing issue of cleaning tool and participation, activity to volunteer insurance.

 Violation advertisement thing removing supporter business

We intend for removing activity of advertisement article put on telephone pole and guardrail illegally. We have you form more than three groups in local resident, PTA and have around one time of one month act. We issue identification card and armband to person worked on. We support holding of class that we deal with supply of tools necessary for removing, participation, removing to volunteer insurance.

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Aso Area Promotion Bureau
Telephone: 0967-22-1110
Fax: 0967-22-4103
Email [email protected]
(ID: 7407)
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Kumamoto prefectural government office   〒 862-8570  6-18-1, Suizenji, Chuo-ku, Kumamoto-shi, Kumamoto Tel: 096-383-1111 (main)
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