Additionally guyed tower
Encyclopedia
An additionally guyed tower is a free-standing tower
Tower
A tower is a tall structure, usually taller than it is wide, often by a significant margin. Towers are distinguished from masts by their lack of guy-wires....

, which is also additionally guyed
Guy-wire
A guy-wire or guy-rope, also known as simply a guy, is a tensioned cable designed to add stability to structures . One end of the cable is attached to the structure, and the other is anchored to the ground at a distance from the structure's base...

.

An additional guying can be temporarily or permanently. Temporarily additional guying is used when work on static relevant parts of the tower is done.
A permanent guying is attached when the construction has to withstand strong forces in a certain direction. For example, some types of electricity pylon where the conductors change their direction or terminate. Towers carrying horizontally spun wire antennas are sometimes additionally guyed. Sometimes towers in windy areas are additionally guyed in order to withstand increased strain.

The main advantage of additional guying is that it is cheaper than building a completely free-standing tower, which can withstand the same force. Further, it allows for very easy upgrading of existing structures.
The disadvantage of additional guying is that it requires much more ground space and that the guy basements handicap the work of agriculture. There is also a danger that the guys can be damaged at their basement anchors, so the basements need to be fenced in.

Some additionally guyed towers

Tower Year Country Town Pinnacle height Remarks
Torre de Collserola
Torre de Collserola
Torre de Collserola is a uniquely designed tower located on the Tibidabo hill in the Serra de Collserola, in Barcelona, Catalonia, Spain. It was designed by architect Sir Norman Foster, and built in 1991 for the 1992 Summer Olympics. It features a pod for floor space like many towers but uses...

 
1992 Barcelona 288.4 m http://radiomap.eu/es/barcelona.htm#collserola
Torre Espacial
Torre Espacial
Torre Espacial or Torre Interama is a 228 metre -high observation tower in the Villa Soldati section of Buenos Aires, Argentina. The tower was built in 1980 in the Parque de la Ciudad amusement park, and has observation decks at 220, 124 and 185 metres of height. From the highest one it is possible...

1980 Buenos Aires 228 m
RKS Liblice 1
RKS Liblice 1
RKS Liblice 1 is a facility for commercial longwave transmission located in the Czech Republic about east of Prague near Liblice. It uses as a T-antenna hung up on two tall insulated towers built of lattice steel...

? Liblice 150 m insulated against ground
Kherson TV Mast ? Kherson 142 m
Mount Ślęża transmitter 1972 Mount Ślęża 136 m http://radiomap.eu/pl/wroclaw.htm#sleza
Portofino TV Tower
Portofino transmitter
Portofino transmitter is a facility for FM-/AM-/TV-broadcasting near Portofino in Italy.Portofino transmitter uses for the mediumwave transmitter, which works on 1575 kHz with 50 kW...

Portofino 130 m http://mediasuk.org/archive/portofino.html,
Lezarsk TV Tower ? Lezarsk 130 m
Păltiniş transmitter ? Vârful Onceşti ? http://www.predavatel.com/ro/6/sibiu.htm#paltinis
Rarău transmitter ? Câmpulung Moldovenesc ? http://www.predavatel.com/ro/5/campulung-moldovenesc.htm#rarau
Psunj
Psunj
Psunj is a mountain in the southwestern Slavonia region in eastern Croatia. It is the highest mountain of Slavonia, with the highest peak of Brezovo polje at 984 m.a.s.l. In the north it extends to Ravna gora and Papuk, while otherwise it is surrounded by lowlands...

 TV Tower
1963 Psunj 128.5 m Originally completely free-standing
Helgoland Radio Tower
Helgoland radio tower
Helgoland radio tower is a 113 m high transmission tower on the island of Helgoland in Germany. It is owned by the Deutsche Telekom. It was constructed anew in 2000, replacing an older, lower mast that was subsequently demolished, and has some unusual characteristics. It uses a triangular base...

? Helgoland 115 m
Nha Trang Radio Tower ? Vietnam Nha Trang ? m http://upload.wikimedia.org/wikipedia/commons/1/1c/Nha_Trang_Rooftop_Panorama.jpg
Schöckl Transmitter
Schöckl Transmitter
Schöckl Transmitter is a facility for FM- and TV-transmission on the Schöckl Mountain in Steiermark, Austria. It uses as an antenna tower, a 100 metre high lattice tower, which was built in 1956....

1957 Schöckl 100 m http://radiomap.eu/at/graz.htm#schoeckl
Holstein Tower
Holstein Tower
Holstein Tower is a 100-metre-high gyro tower in Hansa Park, an amusement park in Sierksdorf, Schleswig-Holstein, Germany. Holstein Tower was built in 1988, opposite many other similar structures additionally guyed at the machine unit.-See also:* List of towers...

1988 Sierksdorf 100 m Gyro-Tower in Hansa Park
Staszyce Radio Tower ? Piła 98 m http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=203
KFJZ
KFJZ
KFJZ is an AM radio station broadcasting in the Dallas/Fort Worth metroplex as a Spanish Catholic station. This station is licensed in Fort Worth, Texas and is owned and operated by Siga Broadcasting Corporation.-History:...

-Tower
? Everman, Texas
Everman, Texas
Everman is a city in Tarrant County, Texas, United States. The population was 6,108 at the 2010 census.Former Texas Supreme Court Justice Steven Wayne Smith, who served from 2002–2005, was reared in Everman.-History:...

86.6 m Additionally guyed tower radiator
Mast radiator
A mast radiator is a radio mast or tower in which the whole structure itself functions as an antenna. This design is commonly used for transmitting antennas operating at low frequencies, in the VLF, LF and MF ranges, in particular those used for AM broadcasting. The metal mast is electrically...

Krinichki Communications Tower ? Krinichki 75 m
USDA-ARS Conservation and Production Research Laboratory Meteorological Tower ? Bushland, Texas ? http://upload.wikimedia.org/wikipedia/commons/b/b3/USDA_windmills.jpg
Rubtsovsk Radio Tower 1957 Rubtsovsk 72 m dismantled in 1966
Pohorje transmitter
Pohorje transmitter
Pohorje transmitter is a facility for FM- and TV-broadcasting in the Pohorje Mountains west of Maribor, Slovenia at 15° 34' 53" E and 46° 30' 57" N 1056 metres above sea level....

? Maribor 72 m
Ostrowiec Świętokrzyski Water Tower ? Ostrowiec Świętokrzyski
Ostrowiec Swietokrzyski
Ostrowiec Świętokrzyski is a town in south-central Poland with 74,211 inhabitants .Main industry is metallurgy. Ostrowiec is the capital city of Ostrowiec Świętokrzyski County, part of Świętokrzyskie Voivodeship , previously it belonged to Kielce Voivodeship .- History:The oldest testimonies of...

70 m http://www.wieze.republika.pl/OstrowiecSwietokrzyski_2.htm
South Wellfleet Marconi Towers 1902 Cape Cod 64 m 4 wooden towers, dismantled in 1920
Askiz TV Tower ? Askiz ? http://abakan.rtrn.ru/data/askiz.jpg
Kaliningrad Transmission Mast ? Kaliningrad ? http://kaliningrad.rtrn.ru/data/_MG_2692_.jpg
RTON Błeszno Częstochowa 1967 Częstochowa 67 m :pl:RTON Błeszno Częstochowa
1 Tower of Monte Beigua transmitter Monte Beigua
Monte Beigua
Monte Beigua is a mountain in the Ligurian Apennines in Liguria, northern Italy, between the two communes of Varazze and Sassello...

, Savona
Savona
Savona is a seaport and comune in the northern Italian region of Liguria, capital of the Province of Savona, in the Riviera di Ponente on the Mediterranean Sea....

? m http://the-antenna-site.eu/pictures/other/donated/Italy/Savona-Monte-Beigua/Monte-Beigua04.jpg
Las Palmas Radio Towers ? Las Palmas ? http://www.senderfotos.de/images/ausland/laspalmas4.jpg, 2 towers
Mount Washington TV Mast ? Mount Washington, New Hampshire ?
Bytów MPEC Chimney ? Bytów
Bytów
Bytów is a town in the Middle Pomerania region of northern Poland in the Bytów Lakeland with 16,888 inhabitants . Previously in Słupsk Voivodeship , it is the capital of Bytów County in Pomeranian Voivodeship .-History:...

61 m http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=339
Bratiya radio tower ? Bulgaria Bratiya Mountain, Panagyurski kolonii ? http://www.predavatel.com/bg/news2011/2011_02_19_1
Kmur transmitter ? Bosnia-Hercogowina Kmur
Kmur
Kmur is a mountain in the municipality of Foča, Bosnia and Herzegovina. It has an altitude of .-References:...

? http://www.radiobobar.com/strana.php?id=19
One tower of Monte Pellegrino Transmitter Palermo
Palermo
Palermo is a city in Southern Italy, the capital of both the autonomous region of Sicily and the Province of Palermo. The city is noted for its history, culture, architecture and gastronomy, playing an important role throughout much of its existence; it is over 2,700 years old...

? http://radiomap.eu/it/palermo/montepellegrino_11.jpg
RR Braga Transmission Tower ? Braga ? http://mundodaradio.lusopt.info/forum/viewtopic.php?t=736, http://www.postimage.org/aV2wmxJ9-82f8bd403f2c3adaa09d6d9626d4193d.jpg
Santo António das Neves Radio Tower ? Santo António das Neves ? http://mundodaradio.lusopt.info/forum/viewtopic.php?t=146
Coimbra Radio Tower ? Coimbra ? http://mundodaradio.lusopt.info/forum/viewtopic.php?t=146
Góra Baraniec Transmitter, Tower 1 ? Jelenia Góra ? http://sf-bb.de/baraniec.htm
Kospec Chimney ? Kościerzyna 57 m
Varna TV Tower ? Varna 52 m http://www.predavatel.com/bg/6/varna.htm#rrts
Nanos transmitter, Main Tower 1962 Vipava
Vipava, Slovenia
Vipava is a small town in western Slovenia with 1500 inhabitants. It is the center of a municipality with 5,185 people. Vipava is built near the numerous sources of the Vipava River, in the upper Vipava Valley, 102 m above sea level...

50 m
NTL Amelin ? Amelin 49 m http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=303
MDD Furniture Factory Chimney 1960 Sępólno Krajeńskie 45 m
Briançon Radio Tower ? Briançon 40 m not additionally guyed any more, http://pagesperso-orange.fr/tvignaud/galerie/tv-fm/05briancon.htm
Háj u Aše Radio Tower ? Háj u Aše Radio ? http://home.tiscali.cz:8080/hajuase/H%e1j%20u%20A%9ae_2006_1.JPG
Anadyr TV Tower ? Anadyr
Anadyr (town)
Anadyr is a port town and the administrative centre of Chukotka Autonomous Okrug, the extreme north-eastern region of Russia. It is at the mouth of the Anadyr River, on the tip of the southern promontory that sticks out into Anadyrskiy Liman...

? http://www.trrlsever.org/SEVER/ANADYR/anadyr_images/glr7602.jpg
Szár-hegy Observation Tower ? Szárhegy ?
Kazimierz Pomorski Water Tower ? Kazimierz Pomorski
Kazimierz Pomorski
Kazimierz Pomorski is a village in the administrative district of Gmina Będzino, within Koszalin County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately north-east of Będzino, north-west of Koszalin, and north-east of the regional capital Szczecin.Before 1945 the...

? http://www.wieze.republika.pl/KazimierzPomorski.htm
Havre-Aubert Lighthouse ? Amherst Island ?
Kołbacz Water Tower ? Kołbacz ? http://www.wieze.republika.pl/Kolbacz_zaklad.htm
Lysá Transmitter, Tower 2 ? Prešov ? http://www.radia.sk/vysielace/87_presov-lysa.html
Willisville Tower ? Espanola ? dismantled in the late 1980ies,
Koniaków Radio Tower 1969 Koniaków 34 m http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=20
Tower of Unity
Tower of Unity
The Tower of Unity is a 30 meter high observation tower on Heldrastein, a rocky mountain belonging to Treffurt in Thuringia. The tower of Unity has an unusual history and is also from unusual design, because it is additionally guyed by anchoring wires, although it is actually free standing...

1962 Heldrastein 30 m Former additionally guyed lattice tower, which was transformed into observation tower
Gibberagee Tower ? Gibberagee 30 m http://www.dominionfireandrescue.com.au/forests.html
Sonneberg ELOKA-Tower ? Sonneberg ?
ELOKA-Tower Eisenacher Haus http://www.manfred-bischoff.de/images/BLITZ_1990.jpg ? Kaltennordheim ?
Roggendorf ELOKA-Tower http://www.manfred-bischoff.de/images/FALKE1987_ER.jpg ? Roggendorf ?
Fichtelberg ELOKA-Towers ? Oberwiesenthal ? 2 towers
Kandelstein ELOKA-Tower http://www.manfred-bischoff.de/images/Komet_a.jpg ? Gutenfürst ?
Rodacherbrunn ELOKA-Tower http://www.manfred-bischoff.de/images/SAALE_a.jpg ? Rodacherbrunn ?
ELOKA-Tower Bienstädter Wartehttp://www.manfred-bischoff.de/images/Bienstedt_73.jpg ? Bienstädt ?
Mount Cathead Fire Tower 1916 Mount Cathead ? Today used as radio relay link
Mount Wakely Fire Tower 1916 Mount Wakely ?
Mount Hadley Fire Tower 1916 Mount Hadley ?
Mount Boreas Fire Tower 1919 Mount Boreas ? demolished in 1971
Mount Goodnow Fire Tower 1922 Mount Goodnow ?
Hartheim Forestmeteorological Tower 1985 Hartheim 30 m Aluminium structure http://www.mif.uni-freiburg.de/proj/hartheim/Hartheim.pdf
Góra Kiczera Radio Tower ? Baligród 29 m http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=43
Góra Wysokie Tower 1993 Limanowa / Męcina 26 m http://emi.emitel.pl/EMITEL/obiekty.aspx?obiekt=DODR_S5D, http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=195
Hochfirst Tower
Hochfirst Tower
Hochfirst Tower is a 25 metre tall lattice observation tower on the Hochfirst mountain near Titisee-Neustadt at 47°54'04" N and 8°11'03" E.It was built in 1890 as the replacement to a wooden observation tower...

1890 Titisee-Neustadt 25 m
Berkovitsa Transmitter Tower 2 ( РРТС Петрохан) 2000 Berkovitsa 25 m http://www.predavatel.com/bg/9/montana.htm#pet
Büchenbronn Observation Tower
Büchenbronn Observation Tower
Büchenbronn Observation Tower, built in 1883, is situated on the Buechenbronn height in the proximity of Pforzheim in the state of Baden-Württemberg, south-west Germany...

1883 Büchenbronn 24.75 m
HTM NDB Miles City ? Miles City, Montana ? Tower radiator
Mast radiator
A mast radiator is a radio mast or tower in which the whole structure itself functions as an antenna. This design is commonly used for transmitting antennas operating at low frequencies, in the VLF, LF and MF ranges, in particular those used for AM broadcasting. The metal mast is electrically...

 of NDB http://www.auroralchorus.com/ndb/htn320b.jpg
Mrzlica transmitter, Main Mast ? Mrzlica ? m
Harghita transmitter http://www.directiaapelormures.ro/formatia_service.html ? Harghita ?
Reghin transmitter http://www.directiaapelormures.ro/formatia_service.html ? Reghin ?
Suceava transmitter http://dx-eriromania.netboarder.com/antene-din-suceava-f83/info-oras-suceava-t91.htm ? Suceava ?
Muntele Mare transmitter http://www.directiaapelormures.ro/formatia_service.html ? Muntele Mare ?
Ferma Otopeni Water Tower http://bp0.blogger.com/_I8-aFvqTajw/RjT4-Qpt6eI/AAAAAAAAAqM/HqrI3J27ajs/s1600-h/otopeni-511.jpg ? Ferma Otopeni ?
Pod Europa Water Tower http://bp0.blogger.com/_I8-aFvqTajw/Ri0UR_QaJUI/AAAAAAAAAoI/4vYIdzGO0os/s1600-h/pod-europa-23.jpg ? Pod Europa ?
Crinului Water Tower http://bp1.blogger.com/_I8-aFvqTajw/Ri0USPQaJVI/AAAAAAAAAoQ/N2DyXLXhh-g/s1600-h/crinului-24.jpg ? Crinului ?
Ny-Ålesund Dirigible Tower ? Ny-Ålesund ? m
Krippenstein Radio Mast ? Obertraun, Krippenstein Mountain ? m
Jarman Island Lighthouse 1888 Jarman Island 15.5 m
Gälle Udde Lighthouse 1906 Gälle Udde 15.5 m
Akraberg Lighthouse 1909 Akraberg
Akraberg
Akraberg is the southern tip of Suðuroy, 5 km south from the village Sumba, Faroe Islands. The name Akraberg derives from akur . Five kilometres south of Akraberg is the southernmost point of The Faroe Islands, a rock called Munkurin , also called Sumbiarsteinur, which is one of a group of six...

14 m
Chenal de Groumili Lighthouse 1928 Saint Guénolé 13 m
Godula transmitter ? Godula 13 m
Backoefele ? Schneeberg
Schneeberg (Fichtelgebirge)
At , the Schneeberg is the highest mountain in the Fichtelgebirge, a mountain range in Upper Franconia in northeast Bavaria, Germany. It can be readily identified from a distance by its squat tower - a relic of the Cold War...

? m
Nebunu Tower http://cache.virtualtourist.com/890680-Danube_Delta_Nebunu_Tower-Tulcea.jpg ? Tulcea ?
Aljaž Tower 1895 Triglav 1.9 m
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