Tunneling
Creating tunnels without tunnel vision
With a promise to design with community in mind, we focus on risk avoidance and mitigation with robust management programs that maximize constructability to deliver solutions that provide the best overall value to you. Read MoreNo matter what challenges you face, it will work in the end.
One of the most challenging tunneling projects in the world
Approximately 90% of the drinking water delivered to customers in southern Nevada comes from the Colorado River, which is captured at Lake Mead. Construction of this new intake ensures that full system capacity can be maintained at low lake levels. The $520M project consisted of a 600-foot deep intake, new 900 MGD pumping station, and 3 miles of up to 20-foot inside diameter water supply tunnel. Read MoreConnecting a community while maintaining daily train traffic
Fossil Creek Trail is a set of two separate paved pathways, totaling 5.3 miles, running through neighborhoods and local parks that the City of Fort Collins is working on connecting. Complicating this effort is an existing Burlington Northern Santa Fe Railroad system—a main freight corridor along Colorado’s Front Range. We worked with the city on a solution that maintained the daily train traffic by using a below grade tunnel rather than a more traditional crossing. Read MoreProviding $50M in savings with cavern style pump station
This deep tunnel pump station is designed to dewater 160 MG of stored CSO flow in a 24 hour period. The pump station is 240 feet below ground, housed in an underground cavern that is 35 feet lower than the nearby tunnel storage system. The cavern is approximately 140 feet long, 56 feet wide, and 65 feet high. Read MoreRelated Services
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