The canal was dug entirely by hand with help of tools such as wheelbarrows and stump-pullers and animals such as horses and mules. Despite the common stereotype, the laborers were primarily locals and were tasked with the job of blasting through mountains and hills with gunpowder and filling in swamps. Workers faced heat, humidity, mosquitos, and diseases, and many died of illness, explosive accidents, collapsing canal beds, and falls from embankments.