From Mexico City to Acapulco
We live
in Mexico City, over 7300 ft above sea level. That’s quite a descent during the
5+ hours down to Acapulco at the Pacific Ocean. Given the efficiency of cars,
it doesn’t take any longer going up all that distance, though I am sure that
much more gas is consumed on the return to Ciudad Mexico.
It’s a
great road, four lanes, divided, going through quite rugged country—hence
multiply curved—with mostly trees on both sides. But by no means only trees. Many, many sections have
high walls on one or both sides, indicating clearly that the road was cut
deeply into a rough terrain.
The
walls are so high—or, more accurately, the road is down so deep—that, mostly,
they could not be left them untouched after the excavating machinery produced
them. Without some treatment, dirt and stones would continuously, or at least
sporadically, bombard the road, making it dangerous to the point of being
wholly unsafe.
In
short, those almost sheerly vertical expanses must be treated to make the road
safe or even just passable. And treated they are, in a great variety of ways,
with often special walls on the side of the road preventing stones an dirt
spilling into the passage for speeding automobiles.
How
treated? I took no notes, much
less take pictures, but a lot of
ingenuity was lavished the ways that these monumental walls are kept stable.
Complex configurations of wires, hold in some expanses, what looked like
plastic sheets contain others. Everywhere fist-sized stones are inserted in
rows and rows of plastic pipes emerge from the walls, presumably to relieve
water pressure in weather not as benign as we had.
In a
few spots workers were visible on those walls, held by ropes to prevent them
from sliding disastrously down into the roadbed. They were a small sample of
the hundreds of skilled operators that covered these “walls” in the first
place.
I am
not knowledgeable about important roads of the world, but this one from Mexico
City to Acapulco should be counted as one of them. I was surprised that the
internet did not mark it as being as unusual as I found it to be.