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Develop and Implement an L Train Mitigation Plan with the MTA

In collaboration with the MTA, DOT will develop a plan to mitigate the impact of the closure of the L train tunnels under the East River, which carry the same number of passengers into Manhattan each day as the Long Island Rail Road. DOT will consider transformative traffic management and bus priority treatments on 14th Street and the East River Bridges, as well as expanded bike routes and bike parking facilities.

Strategic Plan 2016 Initiative


Short-Term Milestones (by end of 2017)


Update Description

DOT, in partnership with the MTA, will finalize its L train mitigation strategy.


DOT and MTA NYC Transit released a draft plan for mitigating the 15 month L Train closure beginning April 2019, available at The plan consists of increased subway service with access and internal and street level circulation improvements at key stations; inter-borough shuttle buses via the Williamsburg Bridge that combine on-street bus priority with an HOV3 traffic mitigation strategy for the bridge; a busway for a core section of 14th Street that is limited to buses and local deliveries only; bike facility upgrades including new protected bike lanes on 13th St and 20th St in Manhattan, as well as S 4th St and Grand Street in Brooklyn; and pedestrian upgrades throughout the affected areas including the closures of Union Square West and University Pl which will include a new High Capacity Weather Protected Secure Bike Parking facility. Public outreach will continue over the course of 2018 with further refinement to the plan along the way.

Medium-Term Milestones (by end of 2021)


Update Description

DOT, in partnership with the MTA, will implement mitigations during the L train closure.