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File:Sfbaybridge at night.jpg

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Sfbaybridge_at_night.jpg (345 × 279 pixels, file size: 13 KB, MIME type: image/jpeg)

Summary

Description
English: Western Span of the San Francisco-Oakland Bay Bridge at night.

The illuminations on the cables, while part of the original design, are actually a relatively recent addition, made practical by the availability of high efficiency compact fluorescent lamps.

The original roadway illumination was by low pressure sodium vapor lamps, which while efficient give off a garish monochromatic yellow light. On the lower deck these have been replaced with tubular fluorescent lights attached to the bottom of the upper deck, while on the upper deck the illumination is by high pressure vapor lamps, which give off a more full spectrum light.
Eesti: Sild San Francisco ja Oakland vahel.
日本語: サンフランシスコ・オークランド・ベイブリッジ.
Português: Ponte São Francisco-Oakland.
Bahasa Melayu: Jambatan Teluk San Francisco-Oakland.
Русский: Мост Бэй-Бридж, соединяюший Сан-Франциско и Окленд.
Oʻzbekcha / ўзбекча: San Fransisko va Oklendni birlashtiruvchi Bay Bridge (Bey Bridj) koʻprigi.
中文：三藩市灣區大橋.
Date uploaded on 21 - SEP - 2005 at 21:09
Source

This photo is from a newsletter prepared by the Federal Highway Administration of the US Department of Transportation.

Author uploaded by Wolfgang K
Permission
(Reusing this file)
Public domain This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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13,500 byte

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279 pixel

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345 pixel

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32d8c75d8809126c88067e9a345890c339679e5e

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Date/TimeThumbnailDimensionsUserComment
current21:09, 21 September 2005Thumbnail for version as of 21:09, 21 September 2005345 × 279 (13 KB)Wolfgang KSan Francisco Bay Bridge

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