Police received a call at around 9.30am about the incident.
Police confirmed they were called to reports of threatening to jump from a bridge on Markham Road in Chesterfield.
The force received a call about a man on the wrong side of the railings there at around 9.30am.
The road was closed as a result, however it was confirmed just before noon that the man had moved back over to the right side of the railings.
Markham Road has since been re-opened.