The toddler rally and stroller march will be held at LICH Park on Saturday morning.
The East River pier opened Monday, the Open Space Alliance announced.
East River State Park's dog run and four other projects won District 33's participatory budgeting vote.
Supporters have already secured $1.3 million for the renovation of DeSalvio Playground.
The dog run is one of 16 projects proposed for a participatory budgeting vote.
The damaged seawall and the park's lack of waterfront access has been a point of criticism for years.
Construction of new park space at Asser Levy Place will begin in two weeks, bringing new traffic rules.
The popular markets' organizers have applied with the state for a park liquor-vending permit.
Some locals say the popular flea's new location will infringe on their hard-won East River Park space.
Broderick joined more than 100 opponents of NYU's expansion who argue that the city acted illegally.
The city finished acquiring nearly 25,000 square feet of parks space on 79th Street near Travers Park.
After soliciting responses from 130 people, the 82nd Street Partnership will present a plan to the city.
The new administrator for North Brooklyn Parks will also direct the non-profit Open Space Alliance.
Bush Terminal Piers Park will include baseball and soccer fields and a wooded area with walking paths.
The proposed three-lane park still needs to raise at least $15,000.
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