Transbay Tube

Transbay Tube
A tunnel of the Transbay Tube
use	Subway tunnel
traffic connection	Bay Area Rapid Transit
place	San Francisco - Oakland
length	5700 m
Number of tubes	two
construction
start of building	1965
completion	1974
location
Coordinates
	37 ° 47 '44 "  N , 122 ° 23' 37"  W.
	37 ° 48 ′ 32 "  N , 122 ° 18 ′ 58"  W.

 Map with all coordinates: OSM | WikiMap

The Transbay Tube is a section of the BART transport system that crosses the San Francisco Bay between Oakland and San Francisco . The tube starts at Embarcadero Station in San Francisco and ends at West Oakland Station; the total length between the two stations is 9 kilometers. The underwater length is 5.7 kilometers. This makes the tube the longest underwater crossing of an underground train in the world. The deepest point is 41 meters.

The Transbay Tube is the loudest section of the BART with up to 100 dB . In 2015 the rails were sanded, which should have reduced the noise a bit.

Construction of the tube began in 1965 and was opened to traffic in 1974. The tube was built on land from 57 individual segments according to the caisson principle . These segments were then brought into position with the help of a barge , sunk and weighted down with sand and gravel.

Web links

Commons : Transbay Tube  - collection of pictures, videos and audio files

Individual evidence

1. ^ GD Friedlander: Transportation progress: A banner year in the art of people moving saw California's BART go transbay . In: IEEE Spectrum . tape 12 , no. 1 , 1975, p. 80-83 , doi : 10.1109 / MSPEC.1975.6501824 .
2. ↑ Michael Cabanatuan: Noise on BART: How bad is it and is it harmful? In: sfgate.com. September 7, 2010, accessed July 28, 2016 . 
3. ↑ Riders notice a quieter ride following first of two tube shutdowns , August 13, 2015
4. ↑ A History of BART: The Project Begins. In: bart.gov. Retrieved July 27, 2016 . 

North of Richmond – San Rafael Bridge

Crossings of the San Francisco Bay Transbay Tube

South San Francisco-Oakland Bay Bridge