Carretera Nacional N-I

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National road I
Carretera nacional N-I
Route information
Length	475 km (295 mi)
Major junctions
From	Madrid
To	Irun
Highway system
Highways in Spain Autopistas and autovías National Roads

The N-I was the former main road from Madrid to France in Spain.

The majority has now been replaced by the Autovía A-1 and Autopista AP-1. Autovía A-1 starts at Madrid then goes to Burgos. N-I then runs parallel to AP-1 (toll highway) to Miranda de Ebro. It becomes again A-1 and goes via then goes via Vitoria, Altsasu (Alsasua), Beasain, Tolosa, Donostia and Irun.