
Northeast Ohio Regional Sewer District’s Shoreline Storage Tunnel
A breakthrough on the CSO storage tunnel serving the Lake Erie shoreline, with commissioning on track.

Hoffman Tunnels is a solutions-oriented, multidisciplinary firm built on practical, cost-effective and genuinely innovative underground engineering.
Founded in 2005, Hoffman Tunnels has grown from a small team of tunnel engineers into a global practice delivering the underground infrastructure that keeps cities supplied, drained and moving.
We are solutions-oriented consultants, with a culture that emphasises quality and responsiveness. We like to “get our boots dirty” — because practical, constructable answers only come from experience of the construction process.
Our staff are experts in one or more of the disciplines needed to execute heavy civil project design and construction: structural engineering, geotechnical engineering, site civil engineering, architecture, mechanical engineering, engineering geology, hydrogeology, construction management, and construction claims consulting.

We solve our clients' infrastructure challenges with our collective expertise and legacy of underground excellence.
To provide fulfilling opportunities in a collaborative and inclusive workplace that inspires bold, responsive infrastructure solutions.
We help build thriving communities by delivering state-of-the-art, sustainable heavy civil infrastructure.
25+
Years Underground
1,200+
Projects Delivered
1
Head Office
2005
Year Founded

A breakthrough on the CSO storage tunnel serving the Lake Erie shoreline, with commissioning on track.

Our deep underground science cavern complex takes a top honour for engineering excellence.

A new principal joins to lead business development across our transportation and water markets.