Over the weekend, Japanese authorities closed down part of the road that was rebuilt after a massive sinkhole because they noticed the pavement had slightly sunk. They said the road had sunk by nearly 3 inches.
The area was closed for a few hours for a safety check to be conducted. No injuries or damage were reported, so the road was reopened.
Earlier this month, workers only used two days to fill the sinkhole in downtown Fukuoka, which left a space measuring 98 feet long and 49 feet deep.
Authorities kept the road closed for a week as they tested the pavement to ensure the area was safe for traffic and pedestrians.
According to The Japan Times, city officials said the mix of soil and cement used to fill the sinkhole could have compressed a layer of ground underneath the road, causing the pavement to sink slightly.
CNN reported that Fukuoka’s mayor Soichiro Takashima apologised in a message posted to Facebook for not warning residents that the road could sink again in the future.
At the time of the road’s reopening, the mayor had said the ground was now 30 times stronger than before.