Bridge repair on the Kan-Etsu Expressway (Kawagoe IC-Tsurugashima IC)

NEXCO EAST Kanto Regional Head Office (Taito-ku, Tokyo, Regional Head Office length: Shinichi Ishikawa) is, Kan-Etsu Expressway in bridges (between Kawagoe IC ~ Tsurugashima IC), the fact that require repair to the part of the support structure that connects the upper and lower structures I confirmed. We will implement countermeasures as soon as possible.

Kan-Etsu Expressway For some bridges in Kawagoe City and Tsurugashima City area, use an unsuitable material as part of the filling material of the anchor bolts that fix the bearing for transmitting the load of the superstructure to the pier or abutment. I urgently investigated because I received information that it is.

As a result, we confirmed that in the next two bridges, sand should be used in the lower layer, where originally non-shrinkable mortar should be used as the filling material.

We recalculated the safety of these parts and confirmed that the required strength was secured, but we will carry out repair work early from a long-term perspective.

We apologize for any inconvenience caused to customers using the lane regulations associated with repair work, but we ask for your understanding and cooperation.