St. Brendan's Community School in Birr has taken to social media to warn parents and students of traffic disruption ahead of the start of Leaving and Junior Certificate exams on Wednesday.
In an urgent notice, the school wrote: "We have been advised that road works on the N62 Birr-Roscrea road will affect exam students tomorrow (Wednesday)."
"The road at Ballyegan is blocked and diversions will apply. Extra time may be needed to make exams on time," they warned.
Parents concerned about the works can find out more on the Offaly County Council website.