日本最大のレンガ造り「碓氷第三橋梁」【ドローン空撮 4K】

552mもの標高差を11.2kmで結ぶ群馬県「横川駅」と長野県「軽井沢駅」をつなぐ碓氷峠に日本で初めてのアプト式鉄道が導入されました アプト式鉄道の横川駅側から3つ目にあたる「碓氷第三橋梁」は、日本最大のレンガ造りのアーチ橋で「めがね橋」の愛称で親しまれています その後、低速なアプト式鉄道よりも輸送力を増強した信越本線新線が建設され、長野新幹線の開通により1997年に廃線となりました 「信越本線新線」は上り線、下り線の複線になっており、碓氷第三橋梁の奥に見えています 現在では「碓氷第三橋梁」はアプトの道と呼ばれる遊歩道として整備され、「信越本線新線」では廃線ウォークとしてイベントが開かれています Japan's first Abt system railway was introduced on the Usui Pass, connecting Yokokawa Station in Gunma Prefecture and Karuizawa Station in Nagano Prefecture over a distance of 11.2 km, spanning an elevation difference of 552 m. The third Abt system railway bridge from Yokokawa Station, the Usui Third Bridge, is Japan's largest brick arch bridge and is affectionately known as the "Megane Bridge." The Shinetsu Main Line, which offered greater transport capacity than the slower Abt system railway, was subsequently constructed, and the line was abandoned in 1997 with the opening of the Nagano Shinkansen. The Shinetsu Main Line New Line is a double-track line with up and down tracks, and can be seen behind the Usui Third Bridge. Currently, the Usui Third Bridge has been developed as a promenade called Apt Road, and the Shinetsu Main Line New Line hosts events such as the Abandoned Railway Walk.