Geography and time weren’t on the side of Mortenson when it needed to design and build a new siphon to move 22 million gallons of wastewater as part of an upgrade to a 42-year-old water system in ...

Microtunneling is a way to install a pipe underground without having to dig a long trench and chew up an entire street for blocks. Pittsburgh’s South Side needed new pipes. During a rainstorm in the ...