CEDAR RAPIDS, Iowa (AP) — The death of an Iowa teenager who was sucked into a storm drain during flash flooding this summer has focused attention on the dangers of the large flood-control pipes and culverts used all over the country.

People are caught in flood pipes a few times a year, typically after a heavy rainfall. They’re often carried toward creeks and lakes where the pipes empty.

That’s what happened to 17-year-old Logan Blake, who died after being swept into a culvert that didn’t have a grate while playing Frisbee with friends.

The National Institute for Occupational Safety and Health warned cities 12 years ago that installing grates could prevent such accidents. Some cities fear the grates will clog with debris during heavy rains, but supporters say clogging can be managed with routine checks.