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| Bóthar R177 | |
 Armagh Road, Dundalk, on the R177 | |
| Route information | |
| Length | 5.5 km (3.4 mi) |
| Location | |
| Country | Ireland |
| Primary destinations |
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| Highway system | |
TheR177 road is aregional road inIreland linkingDundalk and theBorder with Northern Ireland[1] inCounty Louth. The road continues as theA29 across the border inNorthern Ireland. The road is 5.5 km (3.4 mi) long.