Mayor Bloomberg says 1 million passengers have ridden ferries across the East River since the service started just over one year ago.
That's more than double in initial projection of 409,000 riders.
Bloomberg and City Council Speaker Christine Quinn rode the ferry from Brooklyn to lower Manhattan on Monday to mark the milestone.
They said the city will conduct a passenger survey on board the ferry, online and via telephone in order to improve service further.
The service was launched June 13, 2011 as a three-year pilot program. Boats sail from several Brooklyn and Queens locations to East 34th Street and Pier 11 in Manhattan. The one-way fare is $4.
Bloomberg said that using waterways as transportation corridors makes for a greener and more livable city.
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