MIAMI — Engineers used explosives to implode the Mandarin Oriental Miami, a 26-year-old 23-story hotel in Brickell Key, in about 20 seconds on Sunday morning.

Swire Properties, a real estate developer, worked with BG Group personnel and Miami police officers to close the Brickell Key Bridge, which connects the man-made, triangular-shaped island to Brickell.

The bridge will reopen at 1:30 p.m. The deadline for residents to leave Brickell Key was 7 a.m. The BG Group personnel asked residents to keep windows closed and turn off their air conditioning units during the implosion.

Emergency vehicles were staged at 6:30 a.m. The vibration monitors were installed at 6 a.m.

The final setup of barricades and signage to secure the “exclusion zone” on both land and water was at 4 a.m.

The implosion will make way for the two-story The Residences at Mandarin Oriental that Swire Properties expects to complete in 2030.

Crowd gets last pictures of building

Crowd gets last pictures of Mandarin Oriental Miami

Engineers use explosives to implode Mandarin Oriental Miami in Brickell Key

Brickell Key Bridge closes from 7 a.m. to 1:30 p.m.

Crowd gets last pictures of building

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