CRIL
Published 4 November 2026, 18:37
CRIL — Circular Regional Interior de Lisboa (inner ring road around Lisbon)
A road that skirts Lisbon along the edge of the city, from Algés on the Tagus to Sacavém in the north-east, passing the airport. The name was set by Decree-Law 281/90, with which the government launched its construction. The decree names the road in exactly these words, "via denominada Circular Regional Interior de Lisboa (CRIL)", and the first section was the stretch from Algés to the Buraca junction. Its road number is IC 17, which is also what Infraestruturas de Portugal calls it when announcing works.
Where you come across it. Getting round Lisbon and to the airport; in the news: roadworks, lane closures and traffic jams.
Newspapers and chats write "Circular Regional Interna", but the Diário da República says "Interior". Not to be confused with the CREL: the same decree names the outer ring the Cintura Regional Externa de Lisboa. The road is maintained by the state-owned Infraestruturas de Portugal, which also announces closures.
Official website: infraestruturasdeportugal.pt