A bicyclist is suing the city of Portland for $566,000 after he hit a pair of concrete islands on Southeast Morrison Street, crashed and broke his nose, arm and two fingers on his way home from the World Naked Bike Ride.

Charles Ziemer was pedaling back to his car after participating in the ride -- and was fully clothed -- when his wheels suddenly struck the islands, according to his lawsuit filed in Multnomah County Circuit Court. They were a few inches high.

The crash happened at 12:25 a.m. on June 26, 2016. Ziemer’s lawsuit faults the city for failing to put reflectors or lights on the islands and situating them in a lane of travel. That created a particularly dangerous obstacle for cyclists at Southeast Morrison and 11th Avenue, the suit claims.

No city attorney has yet been assigned to the case. But an employee at the Portland city attorney’s office said the city doesn’t comment on pending litigation.

The city transportation website states that there were 300 crashes -- by motorists and cyclists alike -- in a six-block section of Morrison Street, from Grand Avenue to 11th Avenue, over 10 years. But it's not clear if any of the other crashes involved the concrete islands Ziemer ran into.

The city also called the traffic configuration along that six-block stretch “unusual,” but it’s not clear if the city was including the concrete islands in that assessment.

It appears the concrete islands were set in place to encourage motorists in the far left-hand lane to turn left onto 11th Avenue instead of going straight onto Morrison, which would have put them into oncoming traffic.

Since Ziemer’s crash and the 10-year crash study, the city dramatically reconfigured that section of road by making Morrison an entirely one-way street in that area. The city also put in a bike lane marked off by pylons and buffered from traffic by a parking strip.

But the concrete islands remain.

Ziemer, 61 and a Northeast Portland resident, was using a front headlight, but wasn’t wearing a helmet, said Ziemer's attorney, Leah Johnson.

Johnson said a helmet wouldn't have prevented Ziemer's broken nose, mouth injuries that included two cracked teeth, broken arm and broken fingers.

The suit seeks $66,000 in medical bills, plus $500,000 for pain and suffering.

-- Aimee Green