The Tees Transporter Bridge is currently closed due to a mechanical issue.
Engineers took the decision to halt operations after one of the bolts that hold the structure’s restraining anchor ropes sheared off.
A specialist engineering firm has inspected the damage and is expected to report on a proposed solution shortly.
It is expected the necessary repair will take at least two weeks to complete.
Bridge Supervisor John Ivison said: “The Transporter is over 100 years old now, and any structure which has been in operation from more than a century will need attention from time to time.
“Parts for the Transporter don’t come off the shelf, so we have to seek specialist assistance for a repair of this nature.
“We will have the Bridge up and running again as soon as we can, and in the meantime I would like to apologise to all those who use it for any inconvenience.”