| Country: | IRL |
| Type: | R |
| Route: | 378 |
| Length Km: | 7.2 |
| Destinations: |
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The R378 road is a regional road in County Mayo in Ireland. It runs along the south shore of Clew Bay and connects the R335 in Louisburgh to Roonagh Quay, 7.2km (04.5miles) away (
map of the route).[1]The government legislation that defines the R378, the Roads Act 1993 (Classification of Regional Roads) Order 2012 (Statutory Instrument 54 of 2012), provides the following official description:
Louisburgh — Roonagh Pier, County Mayo
Between its junction with R335 at Bridge Street Louisburgh and its terminal point at Roonagh Quay via Accony all in the county of Mayo.[1]