Delve Underground

Combining hands‑on construction experience with multidisciplinary engineering—civil, structural, geotechnical, mechanical, and more—the firm tackles complex designs underground.

Typical projects range from tunnel feasibility and design through trenchless installations, shaft work, portal stability, and full construction management.

Specialisms include tunnel & underground engineering, trenchless technology, tunnel inspection/rehabilitation, advisory consulting, engineering consulting, construction management, and claims services.

Noteworthy work includes hydropower infrastructure—designing tunnels, shafts, caverns, and optimizing existing assets—such as PG&E’s Helms Pumped Storage Project in California.

Inclusivity breeds bold, creative solutions.

We are solutions

oriented consultants, with a culture that emphasizes quality and responsiveness.

We like to "get our boots dirty" meaning we know that practical and constructable solutions come from experience with the construction process.

Employee

owned firm encouraging an entrepreneurial spirit and helping team members forge their own paths.

Work hard, care about each other, and also have fun—socializing and celebrating achievements at summer picnics, holiday parties, and company outings.

Everyone in this company is tops in their field technically; a really collegial culture with freedom to do your work without unnecessary bureaucracy.