Misplaced Pages

Carquinez Strait Powerline Crossing

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Carquinez Strait Powerline Crossing
South tower at Crockett, California, looking over Carquinez Strait, before 1914South tower at Crockett, California, looking over Carquinez Strait, before 1914
Location
CountryUnited States
StateCalifornia
Ownership information
OperatorBay Counties Power Company
Construction information
Decommissionedyes
Technical information
AC voltage60 kV

Carquinez Strait Powerline Crossing was the world's first powerline crossing of a large river. It was built in 1901 for a 60 kV powerline operated by Bay Counties Power Company to deliver electric power from their Colgate powerhouse to Oakland, California. For this a crossing of Carquinez Strait was required, which has at its narrowest point at Dillon Point a width of 838 metres (0.52 mi). Such a span width was impossible with wooden poles, which were common in those days. Installing an underwater cable was considered, but for reliability reasons an overhead power line was installed, which used at the north site of the river a 68 metres (223.10 ft) tall lattice tower and at the south site one with a height of 20 metres (66 ft).

In 1914, a second circuit was added.

External links

38°03′23″N 122°12′05″W / 38.05639°N 122.20139°W / 38.05639; -122.20139

Stub icon

This article about a California building or structure is a stub. You can help Misplaced Pages by expanding it.

Categories: