The waterfront park between 43rd and 51st Streets debuted Wednesday after multiple delays.
A man was hit by an F train in the Fourth Avenue station Monday morning, officials said.
Due to "temporary power loss" systemwide, all subways were briefly running with delays, the MTA said.
The $2.5 million project was delayed after workers discovered gaps in the soil beneath the wall.
The mayor said the results of an ongoing investigation could prompt changes to the 911 system.
Nearly 500 survivors are on the list for housing because they were abused, the agency said.
Problems at Union Square sparked widespread service disruptions on the 4, 5 and 6 trains Monday.
Schools were open and subways running close to normal for Monday's rush-hour commute.
Officials said 4, 5 and 6 trains have resumed service in both directions.
Maintenance was set to disrupt 1, 2, 4, 5, 7, A, C, E, F, G, J, M, N, Q, and R trains over the weekend.
The MTA Subway TIme app will give commuters real-time subway arrival information.
Gayle Horwitz resigned as the BPCA admitted a contract dispute with Asphalt Green.
A software glitch has delayed the city's new Paris-style bike share program, Mayor Bloomberg said.
The city's bike share program has been delayed by at least a month.
The Williamsburg Community Board is requesting the MTA include time alerts at the platforms.
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