 | ||||
|---|---|---|---|---|
 A166 entering Garton on the Wolds from the east | ||||
| Route information | ||||
| Length | 24.72 mi (39.78 km) | |||
| Major junctions | ||||
| West end | Grimston Bar | |||
 A64 A614 | ||||
| East end | A614 | |||
| Location | ||||
| Country | United Kingdom | |||
| Primary destinations | York Driffield | |||
| Road network | ||||
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The A166 road is a trunk road between the outskirts of York and Driffield in the historic county of Yorkshire. The road used to terminate at the seaside town of Bridlington, until the opening of the Driffield by-pass caused the final section to be renumbered as the A614.