Given the task definition and input, reply with output. In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).

Interstate 80 is closed between mile markers 266 and 267, with a 281-mile long detour to get around it: Eastbound through traffic must leave I-80 at Des Moines and travel north along Interstate 35 then east to Dubuque via U.S. Route 20, where it can move south along U.S. Route 61 to return to Interstate 80 at the Quad Cities, with westbound through traffic following the opposite route.

州間高速道路８０は、２８１マイルの迂回によって回避すべく、マイル・マーカー２６６、２６７の間で閉鎖されており、東向きの交通はデモインのI-80で降り、州間高速道路３５に沿って北へ進み、それから国道２０号線にのってダビュークを東へ進むと、クワッドシティーで反対ルートを進む西向きのトラフィックと共に、州間高速道路８０に戻るため国道６１号線に沿って南下できる。