Albert Bridge in west London remains closed to traffic after inspectors found cracks in a cast iron component.
Earlier this week, it was announced that the bridge was closed to traffic after concerns were raised following routine maintenance.
The much loved bridge, which connects Battersea to Chelsea, was opened in 1873 and is over 150 years old.
Kensington and Chelsea Council said that all similar components were now being examined using ultrasonic technology.
Drivers can expect an update on the repair of the 150-year-old bridge later this month, after investigations are complete.
The bridge remains open to pedestrians, whilst drivers have been diverted to nearby Chelsea Bridge and Battersea Bridge.
According to Councillor Johnny Thalassites, who is Kensington and Chelsea council's lead member for environment and planning, the bridge "requires constant care and attention".
"The safety of the bridge's users is our absolute priority, so we have taken the precautionary step of closing the bridge to vehicles to allow our expert teams to carry out further investigations," he said, adding that work was progressing "at pace".
Albert Bridge is a Grade II-listed structure and, alongside Tower Bridge, remains one of the only two bridges in London that have never been replaced.
