A major bridge was closed due to an incident, police said.
The Orwell Bridge, which carries the A14 south of Ipswich, was shut between junction 56 for Wherstead and junction 57 at the Nacton interchange.
But at 14:57 BST, Suffolk Police said it had reopened in both directions.
Ipswich Town and Norwich City football fans were earlier advised to check their route following their match at the Portman Road stadium.
