Cardiff closes roads for Monster Jam Cardiff on May 16

monster jam cardiff returned to Cardiff on Saturday, May 16, and roads around the Principality Stadium were shut for the event. The closure window ran from 11am to 7.30pm, giving drivers a six-and-a-half-hour disruption around the city centre.

Principality Stadium closures

Castle Street, Cowbridge Road West, Duke Street and Kingsway were among the roads named in the closure notice. For anyone heading through the area, that meant the usual route around the stadium was out for most of the day, not just during the show itself.

The event mixed monster trucks, massive stunts and family entertainment, with Racing, Skills and Freestyle on the card. Monster Jam also brought the UK debut of Sparkle Smash, the unicorn-inspired truck, while the headline machines included a 12,000-pound truck built for the sort of spectacle that fills the Principality Stadium.

Entry rules at Principality Stadium

Road access was only part of the day’s restrictions. The event had a no re-entry policy, large bags were not allowed inside, and small bags and handbags had to stay within 35cm x 40cm x 19cm. Spectators were also subject to random searches before entry, so arriving late or with the wrong bag could slow the process further.

For Cardiff drivers, the practical message was simple: avoid the stadium area between 11am and 7.30pm if possible. For ticket holders, the day came with a tight entry setup and no second chance once inside, so the safest plan was to arrive prepared and keep belongings within the stated size limit.