A man in his 60s was found dead at the A52 bridge on the A1 Grantham on Friday morning.
His death is not being treated as suspicious.
The A52 in Grantham was closed in both directions at Grantham North due to a police investigation relating to a concern for safety at around 5am on April 3.
Lincolnshire Police have since confirmed that a man’s body was found.
Police said the road was expected to be reopened at around 11am.
A spokesperson for Lincolnshire Police said: “We received a report of a concern for safety at around 5am today (Friday), in which the body of a man in his 60s was located at the A52 bridge on the A1 Grantham.
“This death is not being treated as suspicious and the matter has been passed to the coroner.”