Delve Underground is a leader in underground and heavy civil engineering serving the transportation, water, wastewater, and energy industries. We are a team of solutions-oriented consultants committed to finding innovative and constructible solutions—which often requires getting our boots dirty.
Delve Underground provides responsive and comprehensive solutions to highway, freight rail, and mass transit/commuter rail clients. We have experts in transportation tunnel and station design, with disciplines to support transportation projects such as structural engineering, geotechnical engineering, civil engineering, and architecture.
Since our founding, Delve Underground has been at the forefront of providing cost-effective, practical, and innovative engineering solutions for water conveyance. In the past two decades alone, we have successfully delivered design services for more than 150 water tunnels and pipelines. Our expertise extends to various aspects of underground engineering, including pressure tunnel design, tunnel rehabilitation, and pipeline conduit design in a wide range of ground conditions, from soft ground to hard rock.
We recognize the growing significance of water as a limited resource that is essential to society. We remain committed to offering advanced and sustainable solutions for water conveyance projects, capitalizing on our legacy of experience in clean water initiatives. We cater to both raw and recycled water needs, accommodating projects of various scales — from smaller conduits constructed using trenchless methods for major water conveyance pipelines to large-diameter tunnels employing tunnel boring machines. Our extensive experience in tunnel engineering covers the entire spectrum of challenges and a multitude of environments, from densely urbanized sites with space constraints to remote locations and underwater crossings in seismically active regions.
We deliver efficient and affordable design and construction management services for wastewater conveyance facilities. Since the late 1980s, we have played a crucial role in numerous significant clean water infrastructure projects across North America, New Zealand, and Australia. Whether it’s large-diameter interceptor sewers, combined sewer overflow storage tunnels, stormwater flood diversion tunnels, or smaller diameter force mains and trunk sewers, we are recognized as experts in wastewater and stormwater tunnel engineering. Our experience spans the specialties of both storm and sanitary sewer systems.
From Delve Underground’s first energy projects — the Snowy Mountain hydropower scheme in Australia and the underground Hyatt Powerhouse at Oroville Dam in California — to current major efforts, we have built a reputation for developing practical and cost-effective solutions to underground energy infrastructure challenges.