Miami ? Because an ordinance intended to keep predators away from children made it nearly impossible for them to find housing, five convicted sex offenders are living under a noisy highway bridge with the state’s grudging approval.

The five men under the Julia Tuttle Causeway are the only known sex offenders authorized to live outdoors in Florida, said state Corrections Department spokeswoman Gretl Plessinger.

They have fishing poles to catch food, cook with small stoves, use battery-powered TVs and radios and keep their belongings in plastic bags. Javier Diaz, 30, has trouble charging the GPS tracking device he is required to wear; there are no power outlets nearby.

“You just pray to God every night, so if you fall asleep for a minute or two, you know, nothing happens to you,” said Diaz, who arrived this week. He was sentenced in 2005 to three years’ probation for lewd and lascivious conduct involving a girl under 16.

The conditions are a consequence of laws passed here and elsewhere across the country to bar sex offenders from living near schools, parks and other places children gather. Miami-Dade County’s 2005 ordinance – adopted partly in reaction to the case of a convicted sex offender who raped a 9-year-old Florida girl and buried her alive – says sex offenders must live at least 2,500 feet from schools.

“They’ve often said that some of the laws will force people to live under a bridge,” said Charles Onley, a research associate at the federally funded Center for Sex Offender Management. “This is probably the first story that I’ve seen that confirms that.”

Forced to contend with rats, some of the men sleep on raised cardboard mats. Some have been staying under the bridge for weeks.

“This is not an ideal situation for anybody, but at this point we don’t have any other options,” Plessinger said. “We’re still looking. The offenders are still actively searching for residences.”

She said the problem would have to be addressed.

“If we drive these offenders so far underground or we can’t supervise them because they become so transient, it’s not making us safer,” Plessinger said.

County Commissioner Jose Diaz said he had no qualms about the ordinance he created.