Alfred P. Murrah Federal Building

Alfred P. Murrah Federal Building
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Name	Alfred P. Murrah Federal Building
Caption	The building prior to the 1995 bombing.
Location	Oklahoma City, Oklahoma, United States
Coordinates	35, 28, 22, N...
Start date	1974
Completion date	1977
Opening date	1977
Demolition date	May 23, 1995 (controlled demolition after bombing)
Architect	Lynn R. Nelson and Associates
Architectural style	Modern
Owner	General Services Administration

Alfred P. Murrah Federal Building was a United States federal government complex located in Oklahoma City. Completed in 1977, it housed regional offices for agencies including the Drug Enforcement Administration and the Bureau of Alcohol, Tobacco, Firearms and Explosives. The building is infamously known as the target of the Oklahoma City bombing on April 19, 1995, a domestic terrorist attack that resulted in 168 fatalities. Its destruction led to a major redesign of federal building security standards and the creation of the Oklahoma City National Memorial.

History and construction

The building was constructed between 1974 and 1977 as part of a federal initiative to consolidate agency offices in Oklahoma City. It was designed by the architectural firm Lynn R. Nelson and Associates in a Modernist style, featuring a reinforced concrete frame with a distinctive glass curtain wall. The complex was named for federal judge Alfred P. Murrah, a prominent jurist from Oklahoma who served on the United States Court of Appeals for the Tenth Circuit. Upon completion, it was occupied by numerous federal entities, including the United States Secret Service, the Department of Housing and Urban Development, and the recruiting office for the United States Marine Corps. The building's location in downtown Oklahoma City made it a prominent feature of the city's skyline for nearly two decades.

Oklahoma City bombing

On the morning of April 19, 1995, the building was devastated by a massive truck bomb detonated by Timothy McVeigh, with assistance from Terry Nichols. The explosive, consisting of a mixture of ammonium nitrate and nitromethane, was concealed in a rented Ryder truck parked outside the structure. The blast, equivalent to approximately 5,000 pounds of TNT, sheared off the entire north face of the building at 9:02 a.m. local time. The attack resulted in the deaths of 168 people, including 19 children in the America's Kids Day Care Center located on the second floor, and injured more than 680 others. It was, at the time, the deadliest act of terrorism on American soil, later surpassed by the September 11 attacks.

Aftermath and investigation

The immediate aftermath triggered one of the largest Federal Bureau of Investigation manhunts in U.S. history, famously aided by the discovery of a vehicle identification number from the bomb truck's axle. Timothy McVeigh was arrested just 90 minutes after the explosion for a traffic violation and later identified as the prime suspect. The investigation, dubbed OKBOMB, involved thousands of agents from the FBI, the Bureau of Alcohol, Tobacco, Firearms and Explosives, and other law enforcement agencies. Terry Nichols was apprehended days later. Both perpetrators were tried and convicted; McVeigh was executed by lethal injection at the United States Penitentiary, Terre Haute in 2001, while Nichols received multiple life sentences. The official inquiry, led by the Department of Justice, concluded the bombing was a retaliatory act against the federal government for its handling of the Waco siege and the Ruby Ridge incident.

Memorial and legacy

The site is now home to the Oklahoma City National Memorial, which was dedicated in 2000 and is administered by the National Park Service. The memorial features the symbolic Gates of Time, the Field of Empty Chairs, and the Reflecting Pool. Adjacent to it is the Oklahoma City National Memorial Museum, which documents the events of the attack. The bombing profoundly impacted federal security protocols, leading directly to the passage of the Antiterrorism and Effective Death Penalty Act of 1996 and the implementation of stringent physical security measures for government buildings nationwide. The annual remembrance ceremony in Oklahoma City continues to honor the victims, survivors, and rescue workers.

Architectural design and features

The original structure was a nine-story, 120,000-square-foot office building exemplifying 1970s Modern architecture. Its design utilized a reinforced concrete moment-resisting frame intended for lateral stability. The north facade was a largely uninterrupted glass curtain wall, which contributed to the catastrophic structural failure during the blast. The building's footprint was roughly rectangular, with an underground parking garage. Its architectural vulnerability, as analyzed in the post-blast forensic investigation conducted by the Federal Emergency Management Agency and the American Society of Civil Engineers, became a critical case study. This analysis directly informed new security-driven design standards, including increased standoff distances from streets, mandated by the General Services Administration through the Interagency Security Committee.

Category:Federal buildings in the United States Category:Oklahoma City Category:Buildings and structures demolished in 1995 Category:1977 establishments in Oklahoma