阿波しらさぎ大橋

摘要

Located approximately 2 km from the mouth of the Yoshino River, the Awa Shirasagi Bridge is part of the Tokushima Outer Ring Road Project to mitigate traffic within central Tokushima. With a length of 1,291 m, it has become one of Japan' s longest highway bridges built over a river. This particular section of the construction involves the erection of the 575 m superstructure comprised of the four-span continuous "Cable Egret" plate-girder bridge (a combined girder structure of a cable-stayed bridge and a cable-trussed bridge) between P1 and P5.%「阿波しらさぎ大橋」は，吉野川の河口から約2kmに位置し，徳島市内の交通分散を図る目的から進められている徳島外環状道路事業の一部を成す橋梁である．橋長は1291mであり，河川に架かる道路橋としては国内有数の長さとなる．本工事は，このうちのPl～P5間の4径聞達続ケーブルイグレット橋575mの上部工架設工事である．