160,000 pound heavy concrete mixer falls into the construction pit, because there simply wasn't enough space to pull onto the construction zone

the project manager blamed the driver for being overweight and undertrained

http://www.dailymail.co.uk/news/article-5121705/Overloaded-concrete-mixer-falls-23ft-deep-pit.html
https://www.mirror.co.uk/news/world-news/horror-cement-mixer-plunges-gigantic-11595831