Tenjinbashi Rebuilding Project

Shimbashi was opened on March 12, 2018. Thank you very much for your cooperation.

Tenjinbashi is a bridge that spans the Horiwari River, a second-class river completed in 1927 as a reconstruction project following the Great Kanto Earthquake.
Approximately 90 years have passed since the construction, and the cross-sectional loss of the floor slab surface, the exposure and corrosion of the rebar, the corrosion and distortion of the bridge girder are progressing, and the width is also as narrow as 5.5m. Since there was no division of the sidewalk, we have been promoting the replacement business since 2009.
The new bridge will widen the roadway and have sidewalks on both sides to improve local traffic convenience and ensure pedestrian safety.
In addition, the overhanging sidewalk upstream of Tenjinbashi, which was used as the Tenjinbashi bus stop, was also aging like Motohashi, so it was removed during the rebuilding work of Tenjinbashi, and a new bus stop was located downstream of Tenjinbashi. Was set up.

From 1-2 Maruyama, Isogo-ku, Yokohama to 11 Uemachi

From fiscal 2009 to fiscal 2017

・Old Bridge
Bridge length: 27.2m
Full width: 5.5m (roadway 5.5m)

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・Shimbashi
Bridge length: 30.0m
Full width: 16.6m (roadway 7.0m, sidewalk 4.0m x 2)

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In order to secure the work space required for the construction of downstream bus stops and the construction of new bridges, a temporary construction platform will be installed on the Horiwari River by boat.

Installation of temporary construction platform by barge

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We will build a bus stop on the downstream side of Tenjinbashi. In addition, temporary sidewalks will be installed because the old bridge will be closed from the removal work of the old bridge.

Bus Stop Status

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Remove the superstructure (bridge girder / floor slab) and the substructure (part of the pier / abutment) of the old bridge.

Floor slab removal status

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We will build a new substructure.

A1 Completion of construction of abutment

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Manufacture and erection of superstructures. The erection was carried out by hanging mounts using a 220t hanging crane.

Construction of cranes

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The overhanging sidewalk upstream of Tenjinbashi will be removed from both the work platform and the barge.

Removal of overhanged sidewalks by barges

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Pave the national and city roads attached to Tenjinbashi. In addition, the temporary construction platform will be removed and the revetment will be restored.

National Road Night Pavement Condition

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Finally, waterproofing work and pavement are installed on the bridge surface to complete the new Tenjin Bridge.

Lighting equipment and railings

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