Major Renovations to Metropolitan Expressway Structures
Major Renovations to Metropolitan Expressway Structures
Making Major Renovations to Metropolitan Expressway Structures
We carry out renovation projects to ensure that the Metropolitan Expressway remains highly reliable over the long term.
Metropolitan Expressway Renovation Program
On January 15, 2013, a committee that was formed to research the way that major renovations to Metropolitan Expressway structures should be carried out passed along its recommendations to Shutoko. Renovations plans were drawn up based on these proposals, and the Ministry of Land, Infrastructure, Transport and Tourism approved the plans on November 20, 2014.
Percentage of years elapsed since opening
Program Type：Major Renovation
Section
Length
Opened
Program Period
The Pier Section of Higashi-Shinagawa and Reclamation Area of Samezu
1.9km
FY1963
FY2014～2026
Daishi Bridge
0.3km
FY1968
FY2015～2023
Ikejiri and the Sangenjaya Entrance/Exit
1.5km
FY1971
FY2015～2027
Takebashi and Edobashi junctions
2.9km
FY1964
FY2015～2028
Ginza and Kyobashi Entrance/Exit
1.5km
FY1962
FY2015～2028
Sub Total
8km
Program Type：Major Repairs
Section
Length
Opened
Program Period
Route 3 Shibuya Line, Route 4 Shinjuku Line
55km
ー
FY2014～2026
Major renovations + Major repairs Total
63km
ー
ー
Renovations to the Pier Section of Higashi-Shinagawa and Reclamation Area of Samezu
More than 50 years have passed since The Pier Section of Higashi-Shinagawa and Reclamation Area of Samezu on the Route 1 Haneda Line were opened in 1963. Although regular inspections and repairs have been carried out, serious damage has occurred due to severe use conditions and the extremely corrosive environment, and the structure requires renovation (reconstruction). Consequently, to ensure long-term durability and future maintenance management, this zone is now being rebuilt in a location that is in a certain distance from sea level, crossover structures (public road, etc.) and parallel to the Tokyo monorail. Moreover, to improve traffic safety, the road width will be changed from 17m to 18.2m.
To reduce the effect on traffic, construction of the detour is set to ensure traffic flow. During the Tokyo Olympics / Paralympics 2020, The detour is planned to be used as the inbound lane of Route 1 Haneda Line, and after the outbound lane is renovated, it will be used as the future inbound lane. Use of the existing structure for both inbound and outbound traffic is not planned.
Image of detour planned for the Route 1 Haneda Line
Image of the renovated line
Renovations to Daishi Bridge
The expressway Daishi bridge which crosses the Tama river, has many fatigue cracks throughout the whole bridge, due to extreme use condition caused by the heavy traffic of many cars. For renovation, replacement of the whole bridge has been determined, in order to ensure long-term durability, maintenance properties, and safety.
