Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
Bicycling

No More Stalling: DOT Redesigns Gerritsen Ave After Teen Cyclist’s Death

In the coming weeks, Gerritsen Avenue will get a two-way protected bike lane, concrete pedestrian refuges, and bus boarding bulbs aimed to calm traffic and create safer access to the park. Image: DOT
By next month, Gerritsen Avenue will get a two-way protected bike lane, concrete pedestrian islands, and bus boarding islands. Image: DOT [PDF]
In the coming weeks, Gerritsen Avenue will get a two-way protected bike lane, concrete pedestrian refuges, and bus boarding bulbs aimed to calm traffic and create safer access to the park. Image: DOT

DOT will install a two-way protected bike lane and other traffic-calming measures on Gerritsen Avenue, the street next to Marine Park in southern Brooklyn where a drunk driver killed a teenage cyclist this summer [PDF].

On the night of July 19, Thomas Groarke, 24, overtook another driver on the left and sped into the wide painted median on Gerritsen near Gotham Avenue, then fatally struck 17-year-old Sean Ryan, who was riding his bike southbound, the Daily News reported. Three other people were injured in the crash. Groarke's blood alcohol level was found to be twice the legal limit.

Gerritsen Avenue is a wide street with a speeding problem and a history of traffic injuries and deaths. Since 2007, there have been four fatalities on the street, according to DOT, including three in the past two years. After the deaths of Joseph Ciresi and James Miro last fall, the Times looked at the street's reputation as a drag strip.

The city has tinkered with the design of Gerritsen Avenue before. After a motorist severely injured 12-year-old cyclist Anthony Turturro in 2004 at the same intersection where Ryan was killed, the city implemented a four-lane-to-three-lane road diet with a painted median. In 2008 and 2009, the city floated concrete pedestrian islands and painted bike lanes for Gerritsen but backed off after local residents protested the changes. The only change implemented was to narrow the medians to make room for a "wide parking lane" (instead of painted bike lanes).

gerritsen
The current conditions on Gerritsen Avenue don't work well for people walking or biking. Photo: NYC DOT
Here's what Gerritsen Avenue used to look like when it was dangerous and more appealing to Marty Golden.

DOT's new design finally narrows the motorway, adds the raised medians, and provides a bikeway that could have protected Anthony Turturro and Sean Ryan. A curbside two-way bike lane protected by parked cars and six new bus boarding islands will run along Marine Park on the east side of the street. Medians at nine intersections will get concrete pedestrian islands. And the city will add a signalized crossing at Channel Avenue by P.S. 277.

The day after Ryan was killed this summer, neighbors, including Turturro, marched down Gerritsen Avenue in his honor to demand that the city address speeding on the corridor. This time, DOT is not waiting for permission before taking action.

The redesign will be installed "in late October/early November," according to a DOT spokesperson.

Ryan was biking in the wide painted median pictured above when a speeding driver swerve out of the northbound lane and struck him. Image: DOT
In the old design, it was too easy for reckless drivers to overtake other motorists by swerving into the median, like the driver who killed Sean Ryan. The new design makes that much harder. Image: DOT
Ryan was biking in the wide painted median pictured above when a speeding driver swerve out of the northbound lane and struck him. Image: DOT

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Brooklyn Residents: Keep Historic Wood Bridge For Pedestrians And Cyclists Only!

As the Department of Transportation is set to reopen the Carroll Street Bridge, locals want it to only reopen to pedestrians and cyclists.

March 17, 2026

Tuesday’s Headlines: We Love A Parade (For Pedestrians) Edition

Organizers of today's St. Patrick's Parade are telling everyone to leave their cars at home. Plus other news.

March 17, 2026

Mamdani Uses ‘Sammy’s Law’ To Reduce Speed Limits To 15 MPH At Schools, But Broader Implementation Is Stalled

By the end of this year, 800 more streets in front of public school buildings will get 15-mile-per-hour speed limits, bringing the citywide total to 1,300. It's a start.

Amazon Owes Nearly $10M Unpaid Fines for Idling in New York City

The online retail giant owes more than any other other company issued fines through the city's Citizens Air Complaint Program.

March 16, 2026

Mamdani Administration Wants To Allow A Brooklyn Hospital To Issue Parking Tickets

Could parking tickets be written by someone other than NYPD traffic agents and cops? Time will tell if this is a good idea or not.

March 16, 2026

Bus Companies Say There’s a Better Way to Take a ‘Great American Road Trip’ This Summer

As Americans start planning their summer vacations, the country’s largest inter-city bus operator is challenging them to leave their cars at home.

March 16, 2026
See all posts