The flood bank has also been closed.
A witness said the cordon runs from just before the Ferry Boat Inn and down to Burton Joyce train station.
A police spokesman confirmed they were investigating an incident.
They said: “We’re responding to a police incident on the embankment of the River Trent at Stoke Bardolph.
“We were called to incident at 7.26am today. Investigation ongoing. Cordon on and Stoke Lane has been closed.
