Two New York City infrastructure projects — one a major redesign of the Brooklyn port, the other filling a gap in Manhattan’s bike infrastructure — are getting an infusion of cash from the feds. The U.S. Department of Transportation has awarded a $163.8 million grant to the city’s Small Business Services agency to rehab the Brooklyn Marine Terminal, as well as $96 million for the city Transportation Department’s Tenth Ave. Greenway Project in Inwood. New York senators Chuck Schumer and Kirsten Gillibrand announced the grants Friday. The money is part of the U.S. DOT’s Mega Grant program, meant to help fund “large, complex projects that are difficult to fund by other means and likely to generate national or regional economic, mobility, or safety benefits.” In a written statement, Schumer said the awards — which include the single largest federal investment in the city’s biking infrastructure to date — had him “brake-dancing.” “The Tenth Avenue Greenway project will create new green space for pedestrians and cyclists, putting safety into high-gear and expanding access to affordable, safer, and greener transportation options in a historically under-served community,” he added. Meanwhile, the work on the Brooklyn Marine Terminal “will boost the economy and create good-paying jobs for those in adjacent communities, including Red Hook, Sunset Park and Gowanus, and add upgraded and safer bike and walking lanes to boot,” he said. The $163.8 million for the Brooklyn port comes on top of an $80 million city investment and $15 million in state money, announced earlier this year after the city took it over from the Port Authority of New York and New Jersey. The grant will fund repair work to the port’s Pier 10, as well as the demolition of Piers 9A and 9B and the construction of a new Pier 9. In Inwood, the $96 million in federal cash will support the construction of a two-way bike lane along under the No. 1 train tracks along 10th Ave. in northern Manhattan. The route is expected to be one of the final pieces in the city’s long-running effort to build a continuous, bikeable path around Manhattan. A city DOT spokesman said the agency plans to break ground on the project in 2029. “This initiative will enhance transportation and pedestrian safety while mitigating congestion and traffic in the Inwood area,” Gillibrand wrote in a June letter to US DOT Secretary Pete Buttigieg, advocating for the project. In a statement to the Daily News, Gillibrand said an expansion of the bike thoroughfare to Inwood would “pave the way for economic prosperity, community engagement, and environmental integrity in the Inwood community.” City Transportation Commissioner Ydanis Rodriguez welcomed the news Friday. “Thanks to the Biden Administration’s commitment to equity, we’ll be able to fill a critical gap in Manhattan’s waterfront greenway while delivering important traffic safety upgrades in Inwood,” he said.