VG-20

VG-20 loops around the south of Vigo, connecting the Bouzas–Castrelos segment (the First Belt) to the AP‑9 motorway at Rebullón, forming a southern ring road around the city.

It is an autovía, meaning it is toll‑free and designed for high‑capacity urban traffic. Maximum speed is 120 km/h, with multiple junctions. Autopistas, by contrast, are tolled roads built to higher access standards.

Construction began around 2001 as part of an extension of the AP‑9 toward Tui. The VG‑20 was fully operational by November 2005, after ~€122 million in investment by Spain’s Ministry of Transport.

As of 2025, the Porto viaduct, a major span (~347 m) on the VG‑20, experienced structural damage. The Spanish government allocated €6.5 million for reinforcement, barrier replacement, and deck resurfacing on a section between km 9.65 and 10.0.^[1]

Additional resurfacing contracts worth approximately €2.1 million brought total investment in VG‑20 and adjacent A‑55 arterial roads to nearly €4.6M. ^[2]