R492 road (Ireland)

The R492 is a regional road in County Offaly linking Shinrone to the N62 at Sharavogue between Roscrea and Birr. The road is approximately 6 km long.

The road traverses two bridges listed as being of architectural and technical interest. The first is Sharavogue Bridge which carries the road over the Little Brosna River and the second, a single arched bridge over the now disused Roscrea and Parsonstown Railway line.