Under construction Ken-O Road 1 Do the night of the bridge erection work by 800t hanging large crane!

On the day of the event, the general public can also view the construction status! ~

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  • Under construction Ken-O Road 1 Do the night of the bridge erection work by 800t hanging large crane!

October 14, 2008
East Nippon Expressway Co., Ltd.
Kanto Regional Head Office Kisarazu Construction Office

NEXCO EAST Kisarazu Construction Office (Kisarazu City, Chiba, Director: Mototsugu Omori) aims to complete in 2010, Togane Interchange (IC) of Ken-o Expressway (Ken-O Road)-Mobara We are proceeding with the construction work of the Chonan IC (tentative name) (currently, land acquisition rate is about 89%, main line construction order rate is about 83%).

Of these, the construction of the Yahata Viaduct (tentative name), which will be connected to the already opened Chiba-Togane Road and will be the main line of Ken-O Road in the future, is scheduled for midnight on Tuesday, October 21. Will be carried out. Since this work will be run over the national highway No. 126, we will bypass the national highway and perform the installation work overnight using a leading 800t large crane in Japan. On the day of the event, we will prepare a safe space for the general public and those involved in the press, so please take a look at the bridge construction using a large crane, which is rarely seen on this occasion.

In addition, due to construction work, some sections of Chiba-Togane Road and general national highway 126 will be closed, so please refer to the attachment “Nighttime closure between Chiba-Togane Road Togane IC-Choshi-kochi Yokoshiba Hikari IC”. Please refer to the.

1 Overview of bridge construction work

(1) Construction date and time

21st October (Tue) from 21:00 to 22nd Wednesday (Wed) at 5:30 (tentative)
(In case of stormy weather, it will be postponed to the same time the next day or the day after next)

(2) Construction site

Chiba-Togane Road Near Togane IC/JCT

Image of construction position

(3) Construction overview

Ken-O Road Yawata Viaduct (tentative name), which will be the main bridge of the Ken-O Expressway, is a steel 3-span continuous composite box girder bridge with a bridge length of 199m and maximum span length of 72m. The part of the bridge girder (weight of about 240 tons) over General Road 126 is pre-assembled on the ground (ground yard) near the construction site. Will be transported from the ground yard to the erection point, and will be erected by hoisting with a 800 ton large crawler crane (one unit). Attachment 1 [PDF: 96KB]

(4) Image of erection work (example on the Ken-O Road in Ibaraki Prefecture)

Image image of erection work image (case study on Ken-O Road in Ibaraki Prefecture)

2 Visit (coverage) place

From 21:00 on the day to 5:30 on the next morning, we have a space where you can safely visit (see the figure below). Information signs will be installed on Togane City Road, which is parallel to general national highway No. 126. Please follow the guidance.

Please note that parking is limited, so if you come by car, please contact NEXCO EAST Kisarazu Construction Office (General Affairs Division) in advance.

  NEXCO東日本 木更津工事事務所 庶務課 TEL:0438-22-5210(代表) (平日 9:00~17:20)

Image of the map of the tour (coverage) place

Ken-O Road (Ken-o Expressway about) [PDF: 234KB]

Image image of image link (external link) to download page of Adobe Acrobat Reader

To view the PDF file, you need the Adobe Systems plug-in software "Acrobat Reader (Japanese version)". If you do not have​​​ Download from here (free)Please use it.