The Metropolitan Transportation Authority and New York City Department of Transportation have released mitigation plans for the upcoming L train tunnel shutdown.

The MTA estimates that more than 400,000 people will likely be affected daily by the shutdown that's set to begin in April 2019.

Commuters can expect to see expanded subway service on the other lines to which L train riders are expected to flock. That means more service on the G, J, M and Z lines, as well as longer C and G trains. M trains will also run to Manhattan's Upper East Side on weekends and overnight.

Street and bridge infrastructure will also be affected. Bus lanes are to be installed, connecting the Grand Street station with the Delancey Street station. HOV lanes with three or more passengers will be added to the Williamsburg Bridge during rush hours.

Straphangers will also have a maritime alternative, with plans for a new ferry route connecting North Williamsburg and Stuyvesant Cove. The agencies also plan on working with Citi Bike's operator to get more wheels on the road.