Between 1802 and 1831, the average income from the canal was around £550 per year.
They didn't see the dead girl's body removed from the canal.
But there was a lot of noise coming from the canal.
Panama gets about $80 million a year from the canal.
These problems lead many people to use water from canals which could be hazardous to health.
Early the next morning, a beautiful mist rose up from the canal.
She was later found in a place where dead bodies pulled from the canal were displayed.
Water is also removed from the canal and used for irrigation.
Two soldiers were rescued from the canal, but a third was still missing, the military said.
In January police officers retrieved a few more items from the canal.