Nonthaburi bridge 'not a safety risk'

A picture of a thin pillar of the Phra Nang Klao Bridge in Nonthaburi province as captured by a Japanese visitor while he was in a vehicle passing under it. He posted the photo on his Twitter account (@sahoobb), and it went viral on Friday.

The ground columns of Phra Nang Klao Bridge were designed in line with international engineering standards, one of the main project crew said on Friday in response to speculation they may be too thin to properly support the structure.

On Thursday, a Japanese tourist tweeted a photo of the bridge in Nonthaburi province, claiming the columns were too thin. The photo was retweeted more than 8,000 times and seen by 13 million viewers, sparking an online debate about Thailand's construction safety.