the faulty runway/taxiway had undergone a
handful of evolutions--as if no one was com-
pletely sure how to stabilize the earth sur-
rounding a couple of hulking pipelines and
keep the runway eight feet above from ever
was pumping water out of the trench, and
had been for a solid three weeks. Then one
of engineers got wind of all the water in the
trench and threw up his hands in despair. No
one had bothered to mention the water prob-
had he would have told them that any chance
at compacting what amounted to a few dozen
tons of sludge was not only a waste of time
but couldn't possibly support the runway and
60,000 pound jet.
the pipelines, pour in enough concrete to cov-
er the pipes (and then some), lay in some fill
dirt in lifts, tamp it, rebuild the section of run-
way/taxiway, and be done with it.
prevent future settling. Photo courtesy of Jim Craig.