Three law enforcement agencies conducted a DUI checkpoint on the Rickenbacker Causeway on the night of Thursday, Oct. 1, targeting impaired driving along the main route between Key Biscayne and the mainland.

The Miami Police Department, Miami-Dade Sheriff's Office and Key Biscayne Police Department participated in the operation, which continued until midnight and included additional patrols along the corridor, Key Biscayne Portal reported, citing Telemundo.

None of the three agencies had publicly released results from the operation as of Friday, Oct. 2.

The checkpoint was part of a broader joint enforcement effort involving the three departments along the causeway corridor. The initiative includes patrols, traffic-safety education and DUI enforcement intended to reduce crashes and improve safety, according to Key Biscayne Portal.

Causeway safety under scrutiny

The operation followed a series of serious crashes along the Rickenbacker Causeway, a heavily traveled route for motorists and cyclists.

On Aug. 29, Dr. Gilbert Beauperthuy-Rojas, 63, was critically injured when an SUV struck him while he was cycling near 3501 Rickenbacker Causeway on Virginia Key. Beauperthuy-Rojas was riding in the designated bike lane at the time, according to his family.

Miami Fire Rescue took him to Ryder Trauma Center at Jackson Memorial Hospital. Miami police said the driver remained at the scene and cooperated with investigators.

Beauperthuy-Rojas suffered spinal cord and other serious injuries. More recent reporting in late September said he remained in intensive care and was paralyzed from the mid-chest down, according to his family.

His brother-in-law, Key Biscayne resident Carlos Mendia, has publicly called for officials to improve safety along the causeway.

New rules limit e-bike speeds

Miami-Dade County commissioners also approved new rules in July governing e-bikes and scooters on the Rickenbacker Causeway.

The rules set a maximum speed of 20 mph for e-bikes and scooters and prohibit riders from using sidewalks, requiring them instead to use designated bike lanes or the roadway.

The changes followed several serious and fatal incidents involving cyclists and electric devices on the causeway. NBC 6 South Florida reported that police said a teenager riding an electric dirt bike struck and killed a cyclist there.

No start time for Thursday's checkpoint was announced in the cited report, and results from the operation had not been publicly released as of Friday.

Residents who witness a suspected impaired driver can call 911.