Sutro Tower

Sutro Tower
Sutro Tower viewed from Grandview Park in San Francisco
General information
Status	Completed
Type	Radio mast
Location	San Francisco, California
Address	1 La Avanzada Street Clarendon Heights
Coordinates	37°45′19″N 122°27′10″W / 37.75523°N 122.45284°W / 37.75523; -122.45284
Elevation	254.2 m (834 ft)
Completed	July 4, 1973 (July 4, 1973)
Owner	Sutro Tower, Inc.
Height
Antenna spire	297.8 m (977 ft)[1]
Observatory	on Level 6, 228.8 m (751 ft) above base
Dimensions
Other dimensions	base triangle legs spaced 45.7 m (150 ft) on a side waist triangle legs spaced 18.3 m (60 ft) on a side antenna triangle spaced 30.5 m (100 ft) on a side
Technical details
Structural system	Truss tower
Design and construction
Architect(s)	Furman L. Anderson Jr.[2]
Architecture firm	Kline Iron & Steel Albert C. Martin and Associates
Renovating team
Engineer	Simpson Gumpertz & Heger
Website
sutrotower.com
References
[3][4][5]

Sutro Tower is a unique three-legged 297.8 m (977 ft) tall TV and radio lattice tower located in San Francisco, California. Rising from a hill between Twin Peaks and Mount Sutro near Clarendon Heights, it is a prominent feature of the city skyline and a landmark for city residents and visitors. The tower was the tallest structure in San Francisco from the time of its completion in 1973 until it was surpassed by the Salesforce Tower in 2018.

The tower is named after the family of Adolph Sutro, a businessman and former mayor of San Francisco. His grandson, Adolph Gilbert Sutro, built a mansion, La Avanzada, on their property in the highest peaks of San Francisco. In 1948, the mansion and property was sold to the American Broadcasting Company, where it became the original home of their San Francisco operation as KGO Television. KGO then formed a consortium with KTVU, KRON, and KPIX, the three other major San Francisco television broadcasters at the time, to build and maintain the tower. It stands 297.8 m (977 ft) above ground and 552 m (1,811 ft) above sea level. It is the second tallest structure in the city by ground-to-tip height, though its mountain location overlooks the city's downtown skyscrapers.