Spalled concrete joints are the primary problem for a concrete floor. Though the joint is necessary to control cracking, they ...

Water had infiltrated the joint and surrounding concrete, froze in the cold that the region has experienced in the past week, and when it thawed on Friday in warmer temperatures the concrete ...

Shielding will be put up at five other expansion joints as a precaution, officials said. Investigators said the recent cold weather likely played a role in the concrete coming loose.