Posted: Jun 21, 2013 8:08 AM
AUSTIN - Concrete structures will be built on entrances at five Central Texas caves to help protect the aquifer that feeds Barton Springs.
The Austin City Council voted Thursday to spend $246,000 on the project meant to block sediment and allow more rainwater to pass through the caves.
The Austin American-Statesman reports crews will spend about two months building what are essentially concrete chimneys in caves at the Blowing Sink Preserve. The project will replace wooden structures that also block cave entrances to keep trespassers out.
The new structures will be anchored as deep as 50 feet into the caves. Doors atop the structures will have locks.
Scientist Nico Hauwert with the city's Watershed Protection Department says the caves are outstanding features of getting water into the aquifer.
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