C-31 highway (Spain)

C-31
C-31
Eix Costaner
Major junctions
From	El Vendrell
To	Figueres
Location
Country	Spain
Highway system
	Highways in Spain; Autopistas and autovías; National Roads; ;

C-31 or Eix Costaner is one of Catalonia's primary highways. It is the result of merging several sections of previously existing roads, autopistas and autovías after the 2004's renaming of primary highways managed by the Generalitat de Catalunya. According to this new denomination, the first number (C-31) indicates that is a southwest-northeast highway (parallel to the Mediterranean Sea coastline), while the second number (C-31) indicates that is the closest to the Mediterranean Sea.^[1]^[2]

Southern section (El Vendrell-South Barcelona)

The C-31's southern section has two clearly distinguished subsections:

The first corresponds to the former C-246 road, also known as Costes del Garraf. It starts at the intersection with the

coastline passing through several coastal towns such as Calafell, Cubelles (Charlie Rivel's birth town), Vilanova i la Geltrú and Sitges, and across the Garraf Massif coast it finishes at Castelldefels

.

The second subsection corresponds to the former C-246 autovía, also known as Autovia de Castelldefels. It connects Castelldefels with

Barcelona International Airport

.

North Barcelona section (North Barcelona-Montgat)

This C-31's section corresponds to a part of the former A-19 autopista, also known as Autopista del Maresme, which was the first autopista ever in Spain (1969). It starts at Barcelona's

C-32, at Montgat

.

This highway section should continue over the actual

N-II, at the comarca of Maresme

, but since this road is managed by the Spanish government, it has not been renamed yet.