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APSAN ANTONIO – Construction crews moved dirt to shore up a group of houses precariously perched on a crumbling hill in San Antonio on Monday as engineers tried to determine why the land below was shifting, causing dozens of homes to evacuate.
Gaping crevices, some 15 feet deep, cut across several yards as dirt cascaded into a towering stone retaining wall that nearly split in half. Fences crumpled like accordions as crews packed dirt under one home and around its exterior after part of its foundation was exposed.
One soil expert said the cause of the landslide appeared to be the result of poor retaining wall design, and a city official said the nearly 1,000-foot-long wall in the upper-middle class neighborhood of sprawling two-story homes was built without a permit.
No one has been injured, but about 80 homes were evacuated on Sunday after a resident in the northwest side subdivision reported that his backyard was sliding down hill. By Monday afternoon, residents in about 55 of those homes were allowed to return after inspections and soil monitoring found them to be safe, said Valerie Dolenga, a spokeswoman for Pulte Homes Inc., the parent company of the neighborhood's builder, Centex Homes.
One neighbor who was among the first homebuyers in the subdivision set among rolling hills on the outskirts of San Antonio said he was initially told no homes would be built on the crumbling ridge because it was too steep.
Romeo Peart, 32, said one retaining wall failed several years ago before the current one was built and homes were constructed above it.
"They can keep the view now," Peart said, shaking his head as heavy equipment stuffed dirt beneath an exposed foundation. "And they paid an extra $10,000 for those lots."
The development, which was started in 2004, has nearly 750 homes with others under construction. The neighborhood, with houses selling for $250,000, is one dozens that have sprung up on hilly former ranch land as San Antonio grew to be the nation's seventh largest city.
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