Tunneling Machine Articles

Seattle’s Sound Transit is rethinking its names for two of its tunnel-boring machines after the issues a third tunnel-boring machine, Bertha, has...

Bertha, the tunneling machine working on the Alaskan Way Viaduct in Seattle, reached a planned maintenance stop on March 12, after successfully...

Ditch Witch, a Charles Machine Works Company, was recognized by the True Value Company as its 2015 Lawn and Garden Vendor of...

The state of Washington’s order Jan. 18 to suspend digging at the Highway 99 tunnel “is wrongful and unjustified,” according to Seattle...

Bertha, the SR 99 tunneling machine, is now tunneling in Seattle soil after breaking through the access pit wall late Jan. 6....

Deep under Indianapolis, a massive machine is slowly chewing its way through the bedrock the city stands on. In its wake, a...

The City of Akron, Ohio, will take on what it describes as the city’s largest construction project ever — a three-story high,...

While workers in Seattle prepare for Bertha’s restart later this month, another tunnel boring machine in the city made news late last...

Contractors Hit With $300,000 in FinesCal/OSHA cited two California construction companies more than $300,000 for exposing workers to cave-in hazards at a...

Home, Utility Construction Spurs Sales Growth For Ditch WitchDitch Witch sales have gone up “by double digits” with the increased demand for...

A 4.5-mile-long tunnel was completed in Columbus, Ohio, to help deter stormwater runoff that has been an issue for residents and motorists.The...

Bertha’s Front End Lowered into Access PitSeattle Tunnel Partners (STP) lowered the front-end section of the tunneling machine named Bertha into the...

Hard rock and a 4-mile long bore could not keep the joint venture team of Renda Contracting, Southland Construction and SAK Construction...

The Seattle Tunnel Partners (STP) has completed most of the repair and reassembly of its tunneling machine, Bertha, installing a spare main...