The Daryal-U radar in Mishelevka (sometimes referred to as a Pechora type radar in Irkutsk) was demolished by an explosion on June 23, 2011. Here is the video of the blast (thanks to AC for the link):

This looks like the receiver building. No word on what happened to the transmitter (which is in a separate building), but it would be safe to assume that it was demolished as well.

Construction of the Daryal-U radar in Mishelevka began in the early 1980s. It was supposed to be part of a network of Daryal radars, but the network was never completed because of the breakup of the Soviet Union. Only two Daryal radars - in Pechora and Gabala - were brought into operation. Here is how the network was supposed to look like (the drawing is from my old article on Russian early-warning system):

Daryal-UM in Skrunda, Latvia was demolished in May 1995. Construction of Daryal-UM in Mukachevo, Ukraine was stopped in 1991 before any radar equipment was brought to the site. Daryal-U in Balkhash, Kazakhstan, was almost completed, but the radar never became operational. It was shut down in the early 1990s and eventually burned down in September 2004 (it was a quite spectacular fire, as you could see yourself). There was, of course, a plan to build a Daryal radar in Yeniseysk/Krasnoyarsk, but it did not go well.

At this point, two older Dnepr radars continue to work at the Mishelevka site. To replace them, Russia is building two new Voronezh-M radars there. These new radars would become part of the new network that is supposed to provide complete coverage of all approaches to Russia. Assuming, of course, that nothing like a breakup of the country gets in the way.