N-138 road (Spain) From Wikipedia the free encyclopedia National highway in northern Spain This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "N-138 road" Spain – news · newspapers · books · scholar · JSTOR (January 2021) (Learn how and when to remove this message) National road N-138Carretera nacional N-138Route informationLength83 km (52 mi)Major junctionsFromEstadillaToFrance LocationCountrySpain Highway system Highways in Spain Autopistas and autovías National Roads The N-138 is a highway in northern Spain which connects Estadilla to the French Border. This Spanish road or road transport-related article is a stub. You can help Wikipedia by expanding it.vte