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ROHN Manufacturing was founded in 1948 by Dwight Rohn, who at the time was manager of the Peoria Airport. The first tower he built was for airport use. [ 1 ] ROHN first began producing antenna towers for home television reception, and subsequently expanded its product line to include the manufacturing of telecommunication towers and other ...
The Railroad Track Maintenance Tax Credit, also known as the 45G Tax Credit due to its tax line item reference in the Internal Revenue Code of 1986, Title 26, is a federal income tax credit for track maintenance conducted by short lines and regional railroads in the United States. The credit grants an amount equal to 50 percent of qualified ...
Concrete tower Observation, UHF/VHF-transmission China Chengdu Macau Tower: 338 1,109 2001 Concrete tower Observation, UHF/VHF-transmission Macau, China: Macau Europaturm: 337.5 1,107 1979 Concrete tower Observation, UHF/VHF-transmission Germany Frankfurt/Main Chimney of Power Station Westerholt: 337 1,106 1981 Chimney Power station Germany
Partially guyed towers are typically used when a very high tower for FM and TV transmission is required, while also carrying antennas for directional radio services at a much lower height. In such cases the antennas for directional radio services are mounted on the top of the free-standing part of the tower, while the guyed mast on its top ...
The Tokyo Skytree in Tokyo, Japan has been the tallest tower since 2012.. This list includes extant structures that fulfill the engineering definition of a tower: "a tall human structure, always taller than it is wide, for public or regular operational access by humans, but not for living in or office work, and which is self-supporting or free-standing, meaning no guy-wires for support."
Those few of the towers still standing do the opposite: They have a guyed lower section surmounted by a freestanding part. Zendstation Smilde is a tall tower with a guyed mast on top with guys which go to ground. Torre de Collserola is a guyed tower with a guyed mast on top where the tower portion is not free-standing.
The second-tallest structure in Nevada is the Moapa Entravision Tower at Moapa, a 426.7 m (1,400 ft) tall guyed TV mast at Moapa erected in 2008, the third-tallest is the 401 m (1,316 ft) tall Moapa Kemp Tower at Moapa, the fourth-tallest is Stratosphere Tower near downtown Las Vegas, which was erected in 1994–96 and reaches 1,149 ft (350 m ...
A gin pole in use loading logs A gin pole used to install a weather vane atop the 200-foot steeple of a church Roof trusses being assembled with gin poles. A gin pole is a mast supported by one or more guy-wires that uses a pulley or block and tackle mounted on its upper end to lift loads.