Healthcare facilities demand a level of structural precision that goes far beyond standard commercial construction. When we were commissioned for the Nakuru Oncology Hospital project, we understood from day one that every beam, every slab, and every joint would ultimately serve patients in one of their most vulnerable moments.

Oncology centres present a distinct set of structural challenges. Beyond the standard requirements of a hospital — seismic resilience, vibration control, complex MEP coordination — oncology facilities must accommodate heavy radiation shielding, specialised flooring for imaging suites, and precise load paths for medical equipment that can weigh several tonnes.

The best structural engineering in healthcare is invisible. The patient never sees it — but without it, nothing works.

Site Assessment & Foundation Strategy

The project site in Nakuru presented variable soil conditions across the footprint — a common challenge in the Rift Valley region where volcanic deposits can create inconsistent bearing capacities within short distances. Our geotechnical assessment identified three distinct soil zones requiring tailored foundation approaches.

  • Zone A (Northwest): Competent murram at 1.8m depth — strip footings with tie beams
  • Zone B (Central): Loose fill with pockets of black cotton soil — reinforced pad footings at increased depth with ground improvement
  • Zone C (East wing): Stable rock formation — shallow pads with rock anchors

Reconciling three distinct foundation systems within a single structural frame required careful transition detailing at zone boundaries — particularly critical for the linear accelerator vault, where differential settlement tolerance is effectively zero.

Radiation Shielding — A Structural Challenge

The hospital radiotherapy suite required concrete shielding walls up to 1.8 metres thick and a roof slab of equivalent density. The final design used high-density aggregate concrete (HDAC) in the vault walls — denser than standard structural concrete, which reduced wall thickness while maintaining shielding effectiveness.

Construction Supervision & Quality Control

Our team provided full construction supervision throughout — from foundation blinding through to roof slab pour. Key milestones included pre-pour rebar inspections with photographic records, concrete cube testing at seven-day and 28-day intervals, and weekly progress reports issued to the project client and supervising architect.

The Nakuru Oncology Hospital stands today as one of the most technically demanding projects in our healthcare portfolio. It reinforced what we believe about engineering at its best: that the most important work happens long before the first pour.