San Francisco - Oakland Bay Bridge

[tomt]

Originally Posted by Firefighter

So what's the "projected" completion date. (and I use that term very loosely in this case)

i'd no longer hazard a guess ...

however,

this site shows the bridge from several miles away.

the main support is lit at night -

(far left, center)

http://sv.berkeley.edu/view/view_yesterday.html

[Cal_Escapee]

Originally Posted by Firefighter

So what's the "projected" completion date. (and I use that term very loosely in this case)

NEW BAY BRIDGE EAST SPAN OPENING DATE ANNOUNCED
The Toll Bridge Program Oversight Committee is targeting Labor Day Weekend 2013 for the opening of the new East Span of the San Francisco-Oakland Bay Bridge. Stay tuned for more information in the coming months.

http://baybridgeinfo.org/

Webcams: http://baybridgeinfo.org/construction-cams

[giovani kun]

still some good work to be done indeed I'll jump and say it should be completed somewhere around second half of 2013

[phugiay]

The New East Span of the Bay Bridge under construction. It will be opening on Labor Day Weekend 2013


image hosted on flickr


image hosted on flickr



Pic by me

[jchernin]

7/26/12 Bay Bridge Skyway lighting test:

Drivers on the Bay Bridge at night may have noticed that lighting fixtures for the new East Span portion of the bridge are now being tested. The tests are being conducted on the Skyway segment of the new East Span, west of Oakland and adjacent to the section of the Bay Bridge that collapsed during the Loma Prieta earthquake in 1989. Seismic safety is the number one concern in building the new East Span, but Bay Area Toll Authority and MTC guidelines also include requirements that lighting the bridge be both functional and aesthetically pleasing.

...The final lighting system was designed by Musco Sports Lighting, from Oskaloosa, Iowa... Their LED lighting systems have been built in sports venues around the planet, including the official lighting for the 1984, 1996 and 2000 Olympic Games. The company flexed its lighting muscle outside the sports industry in a big way — Musco lit the Statue of Liberty for its rededication in 1986. Since then it has done lighting for the Washington Monument, the White House and now, the new East Span of the Bay Bridge.

...The LED bulbs use 50 percent less electricity than conventional lighting, and the bulbs are expected to last 10 to 15 years instead of the industry average of two years.

The 48,000 LED lights on the new East Span Skyway have each been individually aimed so that every inch of the driving deck of the bridge will have brilliant, even light. That means drivers won’t get the constant strobe-light effect that they experience on most other bridges and highways. The breakthrough design also means drivers won’t even really notice the lighting, because the lights are above and behind the drivers, illuminating the path ahead. Each pole does feature a single light at the top of the pole, which will visually guide drivers — eastbound to Oakland, and westbound to the self-anchored suspension tower and Yerba Buena Island.

While the lighting tests are now focused on the Skyway portion of the bridge (in the westbound direction, at first), the SAS tower will get its own lighting treatment after construction is complete. The lighting of the tower and its distinctive suspender cables also will be done by Musco Sports Lighting.

http://www.mtc.ca.gov/news/current_t...obb_lights.htm

[Huhu]

Very cool article about the lighting. And the reflection on the water does look pleasing.

[jchernin]

The new Bay Bridge East Span weight load is being transferred from the temporary false-work to the suspender cable




http://baybridgeinfo.org/


http://www.mtc.ca.gov/news/current_t...suspension.htm

[jchernin]

San Francisco Bay Bridge Yuerba Buena Island Transition Structure Final Pour:

[612bv3]

[desertpunk]

Bay Bridge Construction Reaches Final Major Milestone

October 25, 2012 9:58 AM

OAKLAND (KCBS) – The Bay Bridge’s self-anchored suspension span is now holding itself up, marking the last major milestone in construction of the new eastern portion of the bridge, Caltrans said Wednesday.

The three-step process of transferring the 35,200-ton load of the bridge from the temporary supports onto the single main cable started back on Aug. 3, said Caltrans spokesman Bart Ney.

“Right now when you drive over it, you can clearly see that the suspension bridge is engaged and it’s actually doing what it was designed to do, lift its own weight,” he said.

[Suspensionstayed]

Originally Posted by desertpunk

Bay Bridge Construction Reaches Final Major Milestone

So why are only photos of cable compaction being shown (which BTW occurred earlier this year) and not photos of the deck hovering however slightly above the falsework if it is truly "clearly see that the suspension bridge is engaged and it’s actually doing what it was designed to do, lift its own weight,” as the article states?

[desertpunk]

Sept 20

image hosted on flickr

New Bay Bridge. Cables & Cranes. by LifeLover4, on Flickr

[jchernin]

New Bay Bridge melds engineering and design
By Lisa Vorderbrueggen
Contra Costa Times
Posted: 11/14/2012 09:07:47 PM PST
Updated: 11/15/2012 10:13:59 AM PST

BAY BRIDGE -- Sometimes you have to think inside the box.

When architects designed the new Bay Bridge, they drew slender, white, side-by-side decks hanging from gently draped cables over the water as if by magic.

That left Caltrans engineers with a challenge worthy of David Copperfield: Where do you hide the anchorages for the world's longest self-anchored suspension span?

Domineering, chunky piers were out of the question both for aesthetics and cost. The architects blanched at slapping onto their svelte bridge a monstrous, multistory anchorage housing.

If you cannot go down or out, you go inside.

Pushed by the architects, engineers compressed the anchorages into the "The Box," shorthand for the interior of the span's side-by-side hollow steel bridge decks. Only a trained eye can see where the decks jut out slightly into a nearly invisible wedge discernible from beneath the bridge.

It was a true marriage of engineering and aesthetics, said the project's chief engineer and architect....

Contact Lisa Vorderbrueggen at 925-945-4773, lvorderbrueggen@bayareanewsgroup.com, politicswithlisav.blogspot.com or Twitter.com/lvorderbrueggen.

For more pictures (30) and entire article: http://www.contracostatimes.com/news...ing-and-design

[SpeedoPro]

this bridge is going to be amazing. i will plan a trip to sf after its completion.

[charger1966]

When is the expected opening date for this bridge?

[ECIRTREB76]

Originally Posted by charger1966

When is the expected opening date for this bridge?

Labor day weekend

[charger1966]

thanks ECIRTREB76

[Msradell]

Originally Posted by ECIRTREB76

Labor day weekend

What year?

[Suspensionstayed]

Originally Posted by charger1966

When is the expected opening date for this bridge?

Originally Posted by ECIRTREB76

Labor day weekend

Originally Posted by Msradell

What year?

It can't open Labor Day weekend anyway. Haven't they typicaly closed the bridge that weekend several times over the recent past?

[Bogdy]

What's the fate of old bridge, after the opening of this new bridge?