TransportationCentral Subway
A 3.1-mile underground extension of the Market Street subway, delivering twin bored tunnels, three underground stations and a cavern beneath an operating city centre.

Good construction management paves the way for safe, efficient project execution.
We collaborate with project owners, contractors and designers to guide cost-effective, quality implementation of design concepts as they become reality. Our roots as designers, contractors and construction claims specialists enable us to identify potential roadblocks and create workarounds that keep projects moving.
We understand the construction process at all levels, and we regularly lead multidisciplinary construction management teams with a variety of skillsets. Our services range from prebid constructability analyses, cost estimating and risk assessments, to the provision of on-site staff — construction managers, resident engineers, QA/QC inspectors and other technical experts.

From feasibility studies to detailed design, to engineering and management services during construction.
Consulting services for small-diameter tunnels and trenchless technologies.
Inspection and rehabilitation services that improve the safety, functionality and longevity of underground structures.
Our consulting services go deeper than design — we advise at every stage of project development.
Multi-disciplinary engineering, analysis and digital delivery for complex underground assets.
Contractual clarity from notice to resolution, supported by forensic engineering.
Every enquiry is reviewed by a principal engineer in the relevant practice — not a sales team. If your question is a technical one, you will get a technical answer, and if we are not the right firm for the job, we will say so.
Or email us directly at support@hoffmantunnels.com.
