About major renewal work schedule in 2020

~ Expressway Renewal Project ~

Image image of Expressway renewal project logo

PDF version [PDF: 591KB]

April 15, 2nd year
East Japan Expressway Co., Ltd.

NEXCO EAST (Chiyoda-ku, Tokyo) has been implementing a Expressway renewal project (large-scale renewal and large-scale repair business) since FY2015 to ensure the long-term health of the Expressway network. As shown in the table below, we plan to replace bridge deck slabs with 10 bridges in FY2020. We require long-term traffic regulation at the construction site, and we apologize for any inconvenience this may cause to customers using the Expressway and the people along the road. We appreciate your understanding and cooperation.

1 List of bridge deck replacement works with long-term traffic restrictions

number Construction name Bridge name Position (between ICs) Traffic regulation Scheduled construction time
【1】 Do-O Expressway Yubari river bridge floor plate replacement work Yubari River Bridge (Out-bound line) Ebetsu East IC-Iwamizawa IC Face-to-face traffic regulation May-July 2020
【2】 Tohoku Expressway Towada Jurisdiction Expressway
Renewal work
Kosakagawa Bridge (In-bound line) Towada IC-Kosaka IC Face-to-face traffic regulation May-July 2020
【3】 Shin-enbu Sawabashi (Out-bound line) Kosaka IC-Ikarugaseki IC Face-to-face traffic regulation August-October 2020
【4】 Tohoku Expressway Takigawa Bridge floor slab replacement work Takina River Bridge (Out-bound line)
Kuzumaru River Bridge (Out-bound line)
Hanamaki IC-Morioka Minami IC Face-to-face traffic regulation August-November 2020
【5】 Tohoku Expressway Miyagi Shiraishigawa Bridge floor plate replacement work Miyagi Shiraishigawa Bridge (upper and lower lines) Kunimi IC-Shiraishi IC Face-to-face traffic regulation May-July 2020
September to November 2020
【6】 Tohoku Expressway No. 1 Kumatogawa Bridge floor plate replacement work 1st Kumadogawa Bridge (In-bound line) Yabuki IC-Sukagawa IC Face-to-face traffic regulation September to November 2020
【7】 Nagano Expressway Kikuzo Bridge floor plate replacement work Kikuzo Bridge (In-bound line) Azumino IC-Mamisho IC Face-to-face traffic regulation May-July 2020
【8】 Kan-Etsu Expressway Matsukawa Bridge floor slab replacement work Matsukawa Bridge (In-bound line) Mizukami IC to Yuzawa IC Face-to-face traffic regulation May-July 2020
September to November 2020

2 List of other renewal works with long-term traffic regulations

number Construction name Tunnel name etc. Position (between ICs) Traffic regulation Scheduled construction time
【9】 Yamagata Expressway Sasaya TN reinforcement work Sasaya Tunnel (In-bound line) Sasaya IC-Sekizawa IC Day and night
Lane regulation
April to December 2020
【10】 Joshin-Etsu Expressway Horai Construction Change to C-Box structure
(Upper and lower lines)
Sakashiro IC-Karamo JCT Day and night
Lane regulation
April 2020-March 2021

3 Major construction sites and scheduled time for FY2020

Image of main construction points and scheduled time for FY 020

<Countermeasure example>

Bridge deck slab replacement work
Bridge floor slab replacement
Tunnel lining reinforcement photo
Tunnel lining reinforcement

4 Other renewal work planned for 2020

NEXCO EAST will continue to install high-performance waterproofing work to improve the durability of bridge decks and work to secure long-term stability of the slope.


Bridge repairCut slope repair Embankment slope repair Repair of drainage facility
High performance floor waterproofingGround anchor Hard rock ground removal Measures to eliminate seepage water Jumping measures, etc.
About 65 bridgesAbout 5 places One place About 40 places About 210 places
<Countermeasure example>
Photo of high performance floor waterproofing
High performance floor waterproofing
Ground anchor pictures
Ground anchor
Photograph of hard rock ground removal
Hard rock ground removal
Photograph of measures to eliminate permeated water in the embankment (drainage boring)
Measures to eliminate permeated water in the embankment
(Draining bowling)
Photo of jumping measures (uplifting of drainage ditch)
Jumping measures
(Raising the drainage channel)

Image image of Expressway renewal project logo

Expressway renewal project

Now, bring safety and security to the next generation.
NEXCO EAST will work on updating and repairing highways to deliver safety and security to everyone.

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