Chile's first drawbridge, in Valdivia, was all set to be opened to the public but there was a little set back ...

Unfortunately officials found out that one of the traffic decks on the bridge was installed upside-down.

The 30-million dollar project was supposed to open this month, and become an instant landmark connecting Valdivia with Teja island by bridging the Cau Cau River.

But it has ended up a laughingstock in local social media, as Chileans wondered how construction workers managed to mess up something as seemingly clear as up and down.

The gaffe also got President Sebastian Pinera a bit defensive.

"It can be fixed, ... and it will be fixed by the company that made the mistake," Pinera said dropping the ball in the court of Spanish infrastructure builders Azvi.