Data centers, industrial campuses, and mission-critical facilities all start the same way: with a massive site prepared precisely, on a schedule that cannot slip.
That is the work Jansen has been doing for decades. The same crews that rebuild Seattle's busiest transit corridors, relocating every utility beneath the street while the city keeps moving above, bring that discipline to private development. Mass earthmoving, structural concrete, and miles of complex underground utilities, delivered to specification and on time.
We have done this as the developer's contractor and as the developer ourselves: Jansen permitted and developed the I-5 Industrial Center, a 75-acre industrial park, carrying it from raw land through entitlement to a finished, build-ready site. For private developers, the value is simple: a heavy civil contractor who has stood on your side of the table, applied to your site.
Large-scale earthmoving, cut and fill, and precision grading to prepare massive building pads and campus sites.
Foundations, slabs, retention vaults, and tilt-up construction backed by deep concrete paving expertise.
Medium and high-voltage duct bank installation, conduit systems, and the underground electrical backbone that power-dense facilities depend on.
Water, sewer, and storm systems laid across miles of trench, coordinated across every discipline that shares the corridor.
Retention and detention vaults, treatment systems, and drainage infrastructure engineered for large impervious sites.
Multi-agency, multi-year public projects have hard deadlines and public scrutiny. We bring that same schedule discipline to private work.
Projects like the Madison BRT RapidRide G Line, the RapidRide H and J corridors, and heavy civil work on Sound Transit's L200 Lynnwood Link Extension are known as transit projects. Underneath, they are utility projects: deep excavation, complex relocations, and site grading executed beneath live corridors on fixed federal schedules. That is the exact civil scope a private campus requires.
Let's talk about what it takes to make it build-ready.
Start the Conversation