But they used only preexisting soil ... district is considering whether the tunnels could be emptied out with pumps between floods, unlike San Antonio’s, which stay full. They plan to study ...

In doing its job so well in 1998, it’s estimated that the San Antonio River Tunnel paid for itself in one day. Today, markers on the wall commemorate the water levels inside the flood-management ...

and exits into San Antonio’s jurisdiction. Prichard says leaving that amount of trash inside the drainage tunnel and if it continues to get worse could mean flooding problems for his city.

It’s one of the city’s best-kept secrets. For almost two decades, a largely unnoticed engineering marvel has helped downtown San Antonio and its famed River Walk avoid the major flooding that ...

"That's what people cannot replicate" Garza is the assistant director of public works for the city of San ... The tunnel is where the city's flood water is stored year-round, and times used ...

RELATED: Harris County Flood Control District proposes tunnel idea to drain stormwaters Gettinger pointed to Austin and San Antonio as cities currently using underground tunnels for flood mitigation.

In 1997, workers construct the San Antonio ... tunnel system that whisks it away to the Houston Ship Channel. It may sound far-fetched, but it's one concept on the table as the Harris County Flood ...

SEE ALSO: 'Flood. Rebuild ... Gettinger, who has a background in storm water tunnels, said tunnels are used in Austin, San Antonio and Dallas to divert water. They are minimally disruptive ...

According to early reports, several homeless individuals were camped out in drainage tunnels near ... the image suggests flash flooding was a major issue across San Antonio Monday morning as ...