The Persistent Surveillance and Detection system will be used to strengthen tunnel detection capabilities along the U.S.

Police stumbled upon a disused water tunnel that thieves had transformed into a massive underground garage for stolen cars.

INDIANAPOLIS — It's one of the largest civil works project the city of Indianapolis has ever seen, and it's still on track to be completed in 2025. Planning of the DigIndy Tunnel System is more than ...

INDIANAPOLIS — It is one of the largest civil infrastructure projects in the history of Indianapolis: the decades-in-the-making DigIndy Tunnel System. More than 250 feet below the earth's surface, the ...