How long didi the great depressin last and where their any long term affects?

The great depression had lasted from 1929 to 1939.

As far as long term affects, yes, there were. Many people did not have an income which mean they'd end up losing their jobs. As you can imagine this would mean they lose houses, automobiles, food and many other things. In addition the job market had crashed which would leave many people in poverty and homeless