Site Feasibility, Due Diligence and Geotechnical Engineering

What a data center site has to prove before land is acquired, and the geotechnical work that proves it.

The problem this page addresses

A data center site fails or succeeds on questions that are settled before the first drawing is issued: whether the land can carry the loads, whether the ground will move, whether the environmental record is clean, and whether the constraints on the parcel leave enough buildable area for the campus the owner actually needs.

Loads are concentrated and unforgiving. Generator yards, transformer pads, cooling equipment and the building slab impose loads that ordinary commercial due diligence does not test for, so the geotechnical program has to be scoped for them.

A fatal flaw found late is the most expensive finding a project can have. Wetlands, floodplain, contamination, unsuitable soils, easements and adjacent land uses are each cheaper to find in due diligence than in design, and far cheaper than in construction.

Feasibility is a comparison, not a verdict. Most owners are choosing between sites. The useful output is a consistent set of civil criteria applied to each candidate so that the differences are visible.

What RSP Engineers does on these sites

RSP's scope is the civil site engineering:

  • Site feasibility and due diligence — constraint mapping, buildable-area analysis and a civil criteria checklist applied consistently across candidate sites.
  • Scoping and coordination of the geotechnical investigation: borings, cone penetration testing, rock coring and laboratory work sized for the loads a data center imposes.
  • Foundation and ground-improvement recommendations developed with the geotechnical findings.
  • Environmental site assessment coordination and the civil response to what it finds.
  • Preliminary grading, drainage and utility concepts that test whether the site can carry the intended program.

Scope boundaries

RSP Engineers performs the civil site engineering described above and also provides mechanical, electrical and plumbing engineering through its own licensed staff. Where a project uses both, the interfaces between building systems and site infrastructure are designed together. Structural engineering and the other project disciplines deliver their own scopes, and how a completed facility performs — its energy use, the redundancy of its systems, its availability in service — depends on the owner's requirements, the equipment selected, the serving utilities, the construction and how the facility is operated. It is not determined by any single discipline's design.

Related reading

The 46 articles RSP Engineers has published on this subject, grouped by question. Titles are as published.

Site selection and due diligence

Environmental site assessment

Geotechnical investigation

Foundations

Other data center pathways

Related services

Discuss a site

If you are evaluating or developing a data center site, tell us about the project and we will come back to you about the civil scope.