R420 road (Ireland)

R420 road
Bóthar R420
R420 leaving Tullamore
Route information
Length	35 km (22 mi)
Location
Country	Ireland
Primary destinations	County Westmeath leaves R446, east of Moate County Offaly Forms junction 6 on the M6 Clara, (R436) Tullamore, (R443), (R421), (N52) (R402) Geashill Crosses the Dublin-Westport/Galway railway line Clonygowan Crosses the Dublin-Westport/Galway railway line (R423) Crosses a river County Laois Portarlington – (R419) (R424) Crosses the Dublin-Cork railway line Terminates at the R445 west of Monasterevin.
Highway system
Roads in Ireland Motorways Primary Secondary Regional

The R420 road is a regional road in Ireland, which runs northwest-southeast from the R446 near Moate in County Westmeath to the R445 just west of Monasterevin. The road travels through the towns of Clara, Tullamore & Portarlington. The route is 35 km (22 mi) long.