YOU SAID:
They crashed the Amtrak Cascades on a lazy s-curve in Dupont which blocked the freeway for 3 days.
INTO JAPANESE
彼らは 3 日間の高速道路をブロックされているデュポンで怠惰な s カーブにアムトラック カスケードを墜落しました。
BACK INTO ENGLISH
They crashed the Amtrak Cascades lazy s-curve at DuPont blocked the highway for three days.
That didn't even make that much sense in English.