R112 road

R112 road
R112 road with cycle lanes (red)
Route information
Length:	15.2 km (9.4 mi)
Location
Primary destinations:	Dublin City Chapelizod (R148) Ballyfermot (R833) Crosses the Grand Canal (New Bridge) Kylemore (R810, R110, Luas Red Line) Walkinstown (R818, R819) South Dublin Crosses the River Poddle Templeogue (R817, R137) Crosses the River Dodder at Springfield Avenue Crosses the Owendoher River Rathfarnham (R114) Dún Laoghaire–Rathdown Churchtown (R821) Crosses the River Slang Dundrum (R117, Luas Green Line) Goatstown (R826, R825, R133) Mount Merrion (R138)
Road network
Roads in Ireland Motorways Primary Secondary Regional

The R112 road is a regional road in south Dublin, Ireland. It begins at the junction with the R148 road at Chapelizod and arcs southeastwards, then eastwards across the middle of south Dublin, ending at the Mount Merrion junction of the R138. The road is single carriageway, with cycle lanes on some stretches. Improvements to the road have been made over the last 10 years, the most significant being at Dundrum Cross where the road was widened to make room for the new Luas bridge and Dundrum bypass (R117 road).

The official description of the R112 from the Roads Act 1993 (Classification of Regional Roads) Order 2012 reads:

The R112 is 15.2 kilometres (9.4 mi) long (map of the road).

The following bus routes use the R112:

An on-street bike lane starts at the Walkinstown roundabout and continues to Templeoge, at the junction of the R137. There, it changes to an off-street bike lane until the junction with the R114 road, where it switches back to an on-street lane. Following the junction at Ely Arch, there in an off-street bike lane until the crossroads at Dundrum. After this, only short stretches of the route have on-street bike lanes, though there are plans to add to this route in the proposed Goatstown development plan.