We see the same pattern across New Westminster every season. The Fraser River silts and the glacial till underneath create a layered ground profile that shifts from one block to the next. A soil mechanics study here does not start with a textbook. It starts with a core sample from Queensborough or a split-spoon from the Brow of the Hill and the immediate question of how the pore pressure will behave in October. We run the triaxial cell, the consolidation frame, and the sieve stack in our lab while field crews work on site. This is not a generic report. It is a direct measurement of effective stress, drained shear strength, and settlement potential for a city where the water table often sits less than two meters below the pavement. If the borehole data skips the sensitivity of the local marine clay, the foundation design goes wrong before the first rebar is tied. We cross-check field blow counts with the SPT drilling data and the CPT test tip resistance to build a consistent stratigraphic model.
The transition from Fraser River silt to glacial till in New Westminster can happen within a single borehole, and the strength contrast demands sample-specific lab testing.
