The four-track bridge over the Harlem River at Park Avenue and E. 132nd Street is getting a major rehab according to this New York Times
The bridge is getting considerably more than a face-lift — a top-to-bottom overhaul that has a price tag of $47.2 million and involves installing new cables to raise and lower the 340-foot-long track sections. Also scheduled are a new electrical control system, new wiring and new power-supply equipment for the third rail on the tracks.
Back in 2010, for the one and only time in over fifty years of riding, was I on a train that was halted due to the bridge being raised. It was a mid-evening train on a Saturday night that was halted after leaving 125th Street because the bridge was being raised. This was when the City of New York was replacing the nearby Willis Avenue Bridge (1st Avenue). We were stopped so tugs with heavily laden barges bearing bridge components could pass through. The train crew explained that normally we would've been held at 125th Street except the RTC had been trying to get us through first. The crew said they were told that because of the way the tides were running it would have been hazardous to require the tugs to try and stop. So we stopped!
On several mornings back in the 1990s I was delayed a couple of times out of Grand Central for a test opening of the bridge. They were announcing in GCT that the bridge had to be test raised once a month. They used to do it after the AM rush around 10 AM.