Work has commenced to repair the damaged Huddersfield Road Bridge in Brighouse but will take around two months to complete.
The pavement has been closed as scaffolding poles and joists have been erected to enable contract workers to carry out the necessary repairs.
Motorists are being warned over potential delays as the repairs are carried out.
Calderdale Council’s highways team inspected the bridge in 2013 due to a water leak from a cracked pipe within the wall of the bridge
The Council’s leader Councillor Tim Swift said the bridge has been monitoring since then, as well as daily checks since the Boxing Day floods.
“The Council owns Huddersfield Road bridge into Brighouse and is therefore responsible for its maintenance,” said Coun Swift.
“All inspections have confirmed that the bridge is safe to use.”
“Work to rebuild the wall, which was planned before the flooding, is due to start and will take about two months.”
Before the work starts, as a precautionary measure, divers carried out detailed underwater inspections to ensure that there has been no washout of the river bed near to the bridge.
“This site does not have any previous history of being susceptible to river bed washout,” added Coun Swift.