( CNN ) -- The biggest security operation ever seen in Ireland is being put in place ahead of Queen Elizabeth 's visit next week . More than 6,000 Irish police officers and Defence Forces troops -- army , navy and air corps -- will be deployed in Dublin , with thousands more at other locations on the queen 's itinerary . Potential threats from the air will be tackled by anti-aircraft guns , and seven military planes will patrol Irish airspace . A special forces unit is on standby in the event of a terrorist attack , and bomb disposal teams are also on high alert . Trash receptacles have been taken off the streets of Dublin , and thousands of manhole covers have been sealed while 40 kilometers of crowd-control barriers are in place around the capital . `` This will be the biggest security operation ever seen in the history of the state , '' said garda ( police ) spokesman Superintendent John Gilligan . It 's estimated the security operation will cost 30 million euros , about $ 42 million . Surveillance has been stepped up on known republican dissidents , who are planning demonstrations at key stopoff points during the four-day tour . The Phoenix Park , where the Queen and her husband will be staying , will also be closed , shutting off one of the main arterial routes into Dublin . Rolling closures will affect several other main routes throughout Dublin . Parking is banned on up to 30 streets from 6 a.m. Saturday until Friday . Security forces are expected to be particularly stretched Wednesday night , with the Europa League football final taking place at the Aviva Stadium in Dublin .
6,000 police officers and military troops deployed in Dublin . Anti-aircraft guns , military planes at the ready . Record security operation expected to cost 30 million euros .