I-880 Cypress Viaduct Construction (part 1 of 5)

[jland904]

Didnt San Francisco learn its lesson in 1906, stop building Major cities on Major Fault Lines,

[1skunkus]

does it creep you to see at 1:19 underneath, seeing those sides knowing they will give out?

[ihatetaft]

Looks very dangerous even then!

[PacificCircle1]

Anyone else ever notice to wavy condition of the lower deck by the 70's and 80's?

[RoadCone411]

Was it really shoddy construction? I think it was a lack of earthquake-proof knowledge back then - obviously they must have known this was a fault zone. But I'm guessing they thought its design would be sufficient. Too bad it wasn't.

[Inspired2004]

I'm sure anyone can see that this is a result of people being greedy and putting money before saftey standards. I wouldn't be surprised to know that many people contested the construction of this freeway especially with this type of design flaw. What makes shit so sad is that most of the freeways in California still exist with the carelessness that the designers had back in the 50's. People are so quick to try to advance the way things are without looking at the potential consequences first.

[socalltd]

i do not see greed in the flaw of this project. the common design from the 40s to the 1971 quake was used all over the state. it takes a disaster to look at problems. i looked at the damage film posted,what happened in the via duct was very loose ground and reinforcment of the colums. not careless, just something that did not come up or thought of. the entire structure did not fall,

just the northern portion from the on/off ramps at 17th st. look at this clip 2:22 from that colum to hwy 80

[thejazzenigma]

Its very interesting that the viaduct in whole started at the Market Street interchange, cause of the maps and this video said so. When they built this, the interchange at Market wasn't even in full form yet.

Danny

[KalesAvenue]

It is amazing to see the light rebar work which contributed to the failure of this structure in 1989. At 3:12 is a good view of the supporting arrangement of vertical rebar used in the columns of this viaduct. During the earthquake the concrete contained by these minimally bundled rebar arrangements burst and the rebar splayed unable to withstand the lateral forces of the quake. The upper fell and crushed the cars on the lower deck. From the street level, there was not much we could do to help.

[jcookjr82]

At around 8:30, you see the water in the pilon pits. I can't see how they did not think liquifaction would be an issue during an earthquake...

[ihatetaft]

Maybe it's just me? I find this very creepy knowing what happens 30 years later. My dad lived in the area when they were building this. My dad was like 3 years old, but my grandpa said the freeway was dangerous back then.

[oaklandlatinosunited]

my freind grew up in west oakland when the cypress struture was being built he told me many homes ocupied by black and even some latino families where toren down to built this crappy freeway who knew at that time the fate of it 30 years later...

[socalltd]

OMG! i always wanted to see construction footage of the nimitz thank you derek20la

[white93taurusgl]

If they only knew the trouble that would happen 30 years later