Exciting news to conclude this Bike to Work Day: NYC DOT has striped 24 blocks of the Amsterdam Avenue protected bike lane, from 72nd Street to 96th Street.

Once it’s finished, the segment DOT is building this year will run up to 110th Street. It’s a much-needed and long-desired northbound complement to the southbound protected lane on Columbus Avenue.

Amsterdam Avenue has been a treacherous speedway for years, and the redesign — which repurposed a lane of car traffic and will include concrete pedestrian islands — will no doubt save lives.

Upper West Side advocates — including Lisa Sladkus, who sent in these photos — worked for years to make this project a reality. The first community board vote for a protected lane on Amsterdam was way back in 2009. But it wasn’t until this February that a specific redesign cleared the obstructionist leadership of the board’s transportation committee.

Congrats and a big thank you to everyone who helped make it happen.