It's expected to be closed until September.
A busy bridge in the midlands will have to be replaced, after an analysis revealed structural damage.
The bridge crossing the Yellow River between Rhode and Rochfortbridge will be closed until September 1st, while the works are carried out.
The closure is in effect from the junction of the M6 Roundabout at Farthingstown to the roundabout at Coolville just North of Rhode Village.
The route connects Rochfortbridge and the M6 to the greater North Offaly area.
Fine Gael Councillor Liam Quinn is asking the public to bear with the local authority:
ESB Acquires Offaly Solar Farm
Hauliers Fear Impact Of Rising Fuel Costs Ahead Of Budget
Midlands Enjoys September Sunshine As Warm Weather Set To Continue
Volunteers Asked To Join Search For Missing Midlands Man
Gardai Investigating Stand Off In Midlands Housing Estate
Five New Members Appointed To TUS Governing Body
Laois Man Set To Represent Ireland In WorldSkills Competition
Midlands TD Criticises "Unacceptable" Hospital Waiting Times