Workers have begun using concrete to close a narco tunnel that officials believe was build within the past year. The tunnel investigation continues.

The underground passage linking Ciudad Juarez with El Paso, Texas, was equipped with lighting and ventilation.

Is Boston ready for another Big Dig? Share your thoughts on the idea of replacing the Tobin Bridge with a tunnel.

The eventual project is all but certain to be enormously disruptive, given the tens of thousands of vehicles that rely on the bridge every day.

A study on the Tobin Bridge's future considers a tunnel option, factoring in sea level rise and climate change, with findings expected by 2026.

A motorist was killed after driving over a Parkway East guardrail Friday near the Squirrel Hill tunnel and plunging down a steep hillside into a creek below, state police said. First responders pulled the mangled car out of a Frick Park creek Friday afternoon,

Authorities told Channel 11 they believe the driver went over the guardrail after he came out of the Squirrel Hill Tunnel.