UPDATED 5:30 p.m.: Clarifies the source of the information about the worker who placed the cable.

A Portland man is suing the city over a bicycle accident in a public park that left him with extensive injuries when a worker used an unmarked metal cable to close off a path, according to court documents filed this week.

The lawsuit filed Monday by James Thorne accuses the city of negligence in the May 2018 crash in Kelley Point Park.

Thorne’s attorney, Jason Kafoury, said an official from Portland’s Risk Management Division told him that a city employee or contract worker had placed the cable. City spokeswoman Heather Hafer said the city does not comment on pending litigation.

The lawsuit says Thorne suffered injuries to his back, neck and elbows and required surgery on his left shoulder and right wrist. It asks for $1 million in noneconomic damages for “pain, discomfort and interference with ordinary activities,” as well as $86,000 in medical expenses and nearly $85,000 in lost wages while Thorne recovered from his injuries.

The city failed to make the cable clearly visible to bicycle riders or notify park visitors that the trail was closed, according to the Multnomah County Circuit Court suit. Kafoury called it a “massive hidden danger.”

“If you’re going to close any kind of public trail, entrances should have a clear notice that the trail is closed,” Kafoury said. “You should never have an unmarked, difficult-to-see, life-altering hazard in the middle of a trail. That’s just crazy.”

The suit also seeks $12,000 in damages for Thorne’s bike, which was battered during the crash, according to Kafoury.

Thorne declined to comment through his attorney.

Hidden hazards have tripped up cyclists in Portland before, including a woman whose face was cut in several places after she hit a booby trap along the Interstate 205 multi-use path in November. Two people were sentenced to community service in the case after admitting to planting strings across the path in an attempt to harass homeless people.

Read the lawsuit here.

-- Diana Kruzman; dkruzman@oregonian.com; 503-221-5394; @DKruzman