Top 5 Factors to Consider When Purchasing Ventilation Fans

Designing and procuring a ventilation system can be a daunting task. Everyone has their own ideas of how a ventilation system should look. But, as the saying goes, “there is more than one way to skin a cat.”

2017 Tunneling Industry Outlook

Each year, TBM publishes a tunneling industry outlook by polling a sampling of tunneling professionals. Most agree that demand is high for tunneling.


Published three times per year, Tunnel Updates recaps ongoing tunneling and underground construction projects in the United States and Canada.

Contractor Prequalification Can Be an Effective Risk Management Tool – If Properly Applied

When a contractor has been prequalified for a project, it increases the chances of success on many fronts, making it an effective risk management tool.

Innovative Solutions Help Complete Tricky Microtunneling Project Under Belt Parkway

Located adjacent to JFK International Airport in Queens, N.Y., Bergen Basin has been recently listed as one of the most polluted waterways in the New York metropolitan area by Government Executive. One of the culprits is a bottleneck in a sewer conveying flows from South Ozone Park to the Jamaica Wastewater...

Vadnais Trenchless Services, mts Perforator Breathe New Life Into Old MTBM

In the 1990s, microtunneling was still very much in its startup period in the United States. It wasn’t until the late 1980s that the U.S had its first major microtunneling program, and owners, designers and contractors were still getting comfortable with this emerging technology. One of the early adopters...

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