Earlier in November a sinkhole that ravaged a five-lane intersection in the city of Fukuoka, Japan was rapidly fixed and reopened in just a week. But now part of the repaired street has shown signs of sinking again. Around a 30 square meter, or 322 square foot, area, on the roadhttp://inhabitat.com/tag/road/”>road> sunk seven centimeters, or 2.7 inches.
The sinkhole in Japan, which was near the JR Hakata Station, was repaired in around 48 hours, filled in with cement and sand. Only a week after the sinkhole closed the road, officials reopened the street. Fukuoka mayor Soichiro Takashima said the repaired road was 30 times stronger than it had been previously. Experts said new subway construction had likely led to the large sinkhole.
But over the weekend, officials discovered the road sunk 2.7 inches across 322 square feet. No one was injured by the newly sinking road, nor were there any gas leaks or power outages caused by the new sinking. Officials closed the road at around 1:45 AM local time, but reopened the area almost four hours later at 5:30 AM local time, according to Channel NewsAsia. Authorities determined the small sink wasn’t dangerous for people walking or driving on the road.
Officials told CNN they had expected some movement after the sinkhole was fixed, and Takashima apologized on Facebook for not letting locals know that the road could sink once more. He said officials would continue to monitor the area. A government spokesperson told local news that when the cement mixed with special soil compressed, the motion could have caused the small sinking.
The original sinkhole was 98 feet long, 88 feet wide, and almost 50 feet deep. No one was seriously hurt, yet the sound of a “loud boom” startled locals as the sinkhole opened. Fukuoka is home to around 1.5 million people, and is the fifth biggest city in Japan.