At what age did you retire?

retired from Nevada DOT back in March 2008, at the age of 55 got offered a job working for a Consultant ...worked 4 years for them...then was "retired" for 2 years....then got offered another job working for a Consultant...working to Fall of 2019...will be 66
I guess I should have added at what age did you retire from your long term profession. I realize that most people go on to work at similar job as there chosen long term profession. My had retired at age 47 from being a Tampa Police officer. But then worked a similar job for the public defenders office for 10 more to have 2 pensions.