Let’s start with the obvious, shall we? The large self-propelled device in the image above these words isn’t a bicycle, is it? And yet this is a site that is allegedly devoted to cycling, right? Well, there are times when I’d like to think that this is a site that just uses the bicycle to get at larger, more human issues like community, culture and happiness.
It’s impossible to hid the fact that I like cool machines. Writing about cycling is a pretty terrific excuse to play with fascinating machines. Being a cyclist predisposes one to digging big, fascinating machines. As it happens, Los Angeles is the site to a new construction project worthy of at least minor media attention. Construction crews are working on the new Wilshire Grand hotel in downtown. By the time it is complete, it will be the tallest building west of the Mississippi River.
In a big city like Los Angeles, something is under construction at almost all times. One new building ain’t no biggie. Except, this one is. Because the ground here is prone to movement, the architect behind the new hotel wanted the foundation to be one single piece of concrete. To do that, the entire foundation had to be poured in one continuous movement. My wife and I figured that at least one of the boys would find it amazing, though I’m thinking she wasn’t referring to the four-year-old still lodged deep within me.
What sold us on going was the pitch that this was promised to be the largest continuous pouring of a foundation in history. Agents of that most hallowed institution of the extreme, the Guiness Book of World Records, were on-hand to verify that this was more concrete poured at once than anywhere else in the world. Beginning at 5:00 pm on Saturday crews began pumping concrete into the huge whole in a process that was to take 20 continuous hours of pouring.
The new Wilshire Grand promises to be some 73-stories, 1100-feet high, containing shopping and more than 900 hotel rooms. It sounded big, really big. And when is big not cool?
Those large crane-looking trucks are the concrete pumps. The construction crew used 19 of them in pouring the concrete for the foundation which is 330 by 440 feet, and lies 106 feet below street level. Mini-Shred was pretty fascinated so long as something either moved or made loud machine sounds. A good belch of diesel exhaust was enough to get his attention.
Given the number of very large vehicles moving around the restricted confines of dense urban landscape, the need for coordination was higher than any game of Twister you ever played.
I had a chance to speak with someone from the project and the details he rattled off were mind-boggling. It was like talking to an astrophysicist. The numbers were mind-stunningly huge. So each cement mixer carries 10 cubic yards of concrete. The foundation required 120 to 150 concrete trucks per hour. Each of those pumps had two trucks parked next to them at all times. As soon as one was empty, they’d switch to the one next to it, and the empty would pull out and another would be directed into position.
Here’s where the math starts to get interesting: One cubic yard of concrete weighs about 4000 lbs. So the payload for each truck was roughly 40,000 lbs. or 20 tons. Those pumps were directing between 2400 and 3000 tons of concrete into that hole, per hour. That’s a total of between 48,000 and 60,000 tons of concrete for the foundation, which when translated back into a measure of mass we have a visceral appreciation results in this figure: between 1,920,000,000 and 2,4000,000,000 lbs.
The Deuce, if he could talk, would tell you that Mini-Shred is by far the coolest person he’s ever met. Mini-Shred has yet to develop a taste for adulation, so scenes like the one above are about as good as it gets.
After the family outing on Saturday, I decided to get up early Sunday and head back to downtown by bike and see if I couldn’t gain a vantage of the hole. What I saw was staggering; it reminded me of something out of the War of the Worlds.
I’m amazed by just how small the shipping containers are. In the far right corner there’s a bucket loader that looks like a Tonka toy. I haven’t seen anything so fascinating since I stopped reading Richard Scarry books. For a brief moment, the world was new and I could be anything I wanted when I grew up.