Georgia Archives building in rubble after implosion

More than 500 pounds of explosives brought down the Archives building in downtown Atlanta Sunday morning.

The 55,000-ton building (330 Capitol Avenue SE, Atlanta, Ga. 30334) was imploded at 7 a.m. It fell at a 45-degree angle.

[Nov. 8, 2014: Crews implode 19-story DeKalb County hotel with help from 4-year-old superhero]

Surface and secondary roads were closed from 6 a.m. to 7:30 a.m. Interstate roads were closed from 6:50 a.m. to 7:30 a.m.

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Devin Simmons, a 5-year-old patient at Children's Health Care of Atlanta,  "pushed the button" to kick off the implosion.

Below is a schedule of events that took place Sunday morning.

• 6:30 a.m. -- Media and attendees arrive on location
• 6:45 a.m. – Gov. Nathan Deal arrives
• 6:45 a.m. -- First horn signals 15-minute alert
• 6:55 a.m. -- Second horn signals 5-minute alert
• 6:55 a.m. -- Deal gives remarks at podium; introduces Devin Simmons and family
• 6:58 a.m. -- Deal invites Devin and family to join him for the countdown
• 6:59 a.m. -- Third horn signals 1-minute alert
• 6:59 a.m. -- 10-second countdown begins; Devin "pulls the plunger" to cue implosion
• 7:00 a.m. -- Implosion

The site will eventually be the new state judicial center.