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Controlled Demolition, Inc
Controlled Demolition, Inc. (CDI) is a controlled demolition firm headquartered in Phoenix, Maryland. The firm was founded by Jack Loizeaux who used dynamite to remove tree stumps in the Baltimore, Maryland area, and moved on to using explosives to take down chimneys, overpasses and small buildings in the 1940s. The company has demolished several notable buildings by implosion, including the Gettysburg National Tower, the Seattle Kingdome, and the uncollapsed portion of the Champlain Towers South condominium. Records The firm has claimed world records for a series of 1998 projects: The June 23 demolition of the 1,201-foot-high Omega Radio Tower in Trelew, Argentina, "the tallest manmade structure ever felled with explosives"; The August 16 implosion of the 17-building Villa Panamericana and Las Orquideas public housing complex in San Juan, Puerto Rico, "the most buildings shot in a single implosion sequence"; and the October 24 project at the J. L. Hudson Department Store in Detr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Building Implosion
In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings. Despite its terminology, building implosion also includes the controlled demolition of other structures, such as bridges, smokestacks, towers, and tunnels. Building implosion, which reduces to seconds a process which could take months or years to achieve by other methods, typically occurs in urban areas and often involves large landmark structures. The actual use of the term "implosion" to refer to the destruction of a building is a misnomer. This had been stated of the destruction of 1515 Tower in West Palm Beach, Florida. "What happens is, you use explosive materials in critical structural connections to allow gravity to bring it down." Terminology The term ''building implosion'' can be misleading to laymen: Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle Seahawks
The Seattle Seahawks are a professional American football team based in Seattle. The Seahawks compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) West, which they rejoined in 2002 as part of a conference realignment. The club entered the NFL as an expansion team in 1976 in the NFC. From 1977 to 2001, Seattle was assigned to the American Football Conference (AFC) West. They have played their home games at Lumen Field in Seattle's SoDo neighborhood since 2002, having previously played home games in the Kingdome (1976–1999) and Husky Stadium (1994 and 2000–2001). The Seahawks are currently coached by Pete Carroll. Seahawks fans have been referred to collectively as the " 12th Man," "12th Fan," or "12s." The team's fans twice set the Guinness World Record for the loudest crowd noise at a sporting event within the span of a few months, first registering 136.6 decibels during a game against the San Francisco 49ers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Tower
Martin Tower was a 21-story, building at 1170 8th Avenue in Bethlehem, Pennsylvania. It was the tallest building in both Bethlehem and the greater Lehigh Valley, taller than the PPL Building in Allentown. Martin Tower was placed on the National Register of Historic Places on June 28, 2010. Originally built as the headquarters of now-defunct Bethlehem Steel, the building, which once dominated Bethlehem's city's skyline, was completed in 1972. It stood vacant from 2007 until its eventual demolition on May 19, 2019 at 7:03 AM EDT. History Martin Tower was constructed as the corporate headquarters for Bethlehem Steel, then one of the world's largest steel manufacturers. Construction of the tower began in 1969. The building was completed and opened in 1972 and was named after then-Bethlehem Steel chairman Edmund F. Martin. Bethlehem Steel spared little expense in their new skyscraper headquarters. The building was built in a cruciform shape rather than a more conventional square, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Canaveral Air Force Station Space Launch Complex 40
Space Launch Complex 40 (SLC-40), previously Launch Complex 40 (LC-40) is a launch pad for rockets located at the north end of Cape Canaveral Space Force Station, Florida. The launch pad was used by the United States Air Force for 55 Titan III and Titan IV launches between 1965 and 2005. The facility underwent multiple upgrades including the design and construction of towers with retractable and foldable platforms for vehicle assembly, instrumentation and monitoring. After 2007, the US Air Force leased the complex to SpaceX to launch the Falcon 9 rocket. As of August 2022, there have been 93 launches of the Falcon 9 from the complex. The site was heavily damaged following the September 2016 Falcon 9 flight 29 incident, due to a catastrophic failure during a static fire test. The complex was repaired and returned to operational status in December 2017 for the CRS-13 mission. Launch history Rocket launches Titan The first launch from SLC-40 (initially named LC-40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineering News Record
''Engineering News-Record'' (widely known as ''ENR'') is an American weekly magazine that provides news, analysis, data and opinion for the construction industry worldwide. It is widely regarded as one of the construction industry's most authoritative publications and is considered by many to be the "bible" of the industry. It is owned by BNP Media. The magazine's subscribers include contractors, project owners, engineers, architects, public works officials and industry suppliers. It covers the design and construction of high-rise buildings, stadiums, airports, long-span bridges, dams, tunnels, power plants, industrial plants, water and wastewater projects, and toxic waste cleanup projects. It also covers the construction industry's financial, legal, regulatory, safety, environmental, management, corporate and labor issues. ''ENR'' annually ranks the largest contractors and design firms in the U.S. and internationally. Its "construction economics" section covers the cost fluctua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson River
The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between New York City and Jersey City, eventually draining into the Atlantic Ocean at Lower New York Bay. The river serves as a political boundary between the states of New Jersey and New York at its southern end. Farther north, it marks local boundaries between several New York counties. The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet which formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Even as far north as the city of Troy, the flow of the river changes direction with the tides. The Hudson River runs through the Munsee, Lenape, Mohican, Mohawk, and Haudenosaunee homelands. Prior to European ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Bathtub
The Bathtub refers to the underground foundation area at the site of the World Trade Center and accompanying buildings in New York City. The term bathtub is something of a misnomer, as the area does not hold any water; rather the purpose of its design is to keep water out. The name is more so used to describe its shape of a deep basin with high walls, like a bathtub. Description The Bathtub, built in 1967–1968, encompasses a large, roughly rectangular excavation down to bedrock surrounded by reinforced concrete walls, intended to serve as dams to prevent water intrusion from the nearby Hudson River ( North River). It enclosed nearly the entire original World Trade Center. The World Trade Center site was located on man-made water-clogged landfill that had accumulated over centuries, providing an extension of land out onto the Hudson River from the original Manhattan shoreline, with bedrock located below. Manually removing water from this area would have severely altered the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slurry Wall
A slurry wall is a civil engineering technique used to build reinforced concrete walls in areas of soft earth close to open water, or with a high groundwater table. This technique is typically used to build diaphragm (water-blocking) walls surrounding tunnels and open cuts, and to lay foundations. Construction While a trench is being excavated to create a form for a wall, it is simultaneously filled with slurry (usually a mixture of bentonite and water). The dense but liquid slurry prevents the trench from collapsing by providing outward pressure, which balances the inward hydraulic forces and also retards water flow into the trench. The density of the slurry mix must be carefully monitored and adjusted to produce the correct outward pressure to prevent the trench walls from collapsing. Slurry walls are typically constructed by starting with a set of concrete guide walls, typically deep and thick. The guide walls are constructed near the ground surface to outline the desir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Trade Center Site
The World Trade Center site, often referred to as "Ground zero#World Trade Center, Ground Zero" or "the Pile" immediately after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City. The site is bounded by Vesey Street (Manhattan), Vesey Street to the north, the West Side Highway to the west, Liberty Street (Manhattan), Liberty Street to the south, and Church Street (Manhattan), Church Street to the east. The Port Authority of New York and New Jersey (PANYNJ) owns the site's land (except for 7 World Trade Center). The original World Trade Center (1973–2001), World Trade Center complex stood on the site until it was destroyed in the September 11 attacks. The Port Authority, Silverstein Properties, and the Lower Manhattan Development Corporation (LMDC) have overseen the reconstruction of the site as part of the World Trade Center (2001–present), new World Trade Center, following a master plan by Daniel Libeskind, Studio Daniel Libeski ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9/11 Attacks
The September 11 attacks, commonly known as 9/11, were four coordinated Suicide attack, suicide List of terrorist incidents, terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, Hijackers in the September 11 attacks, nineteen terrorists Aircraft hijacking, hijacked four commercial Airliner, airliners scheduled to travel from the Northeastern United States to California. The hijackers crashed the first two planes into the Twin Towers of the World Trade Center (1973–2001), World Trade Center in New York City, and the third plane into the Pentagon (the headquarters of the United States Department of Defense, United States military) in Arlington County, Virginia. The fourth plane was intended to hit a Federal government of the United States, federal government building in Washington, D.C., but crashed in a field following a passenger revolt. The attacks killed nearly 3,000 people and instigated the war on terror. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Gettysburg
The Battle of Gettysburg () was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. In the battle, Union Major General George Meade's Army of the Potomac defeated attacks by Confederate General Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point due to the Union's decisive victory and concurrence with the Siege of Vicksburg.Rawley, p. 147; Sauers, p. 827; Gallagher, ''Lee and His Army'', p. 83; McPherson, p. 665; Eicher, p. 550. Gallagher and McPherson cite the combination of Gettysburg and Vicksburg as the turning point. Eicher uses the arguably related expression, " High-water mark of the Confederacy". After his success at Chancellorsville in Virginia in May 1863, Lee led his army through the Shenandoah Valley to begin his second ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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