Foundation Inspection in the West Hills, Portland
Foundations on genuinely steep West Hills lots are frequently not the continuous perimeter walls found elsewhere in the city. They are stepped foundations following the grade, or pole and pier systems holding the house out from the slope, and both need to be assessed as what they are rather than as an unusual version of a normal foundation.
A stepped foundation has a structural weakness at each step, where the wall changes elevation and the corner concentrates stress. Cracking at those transitions is expected and is not automatically a defect; cracking that has displaced is a different matter, and telling them apart is most of the work.
Pole foundations raise a different question, because their capacity depends on embedment depth and on the condition of the pole below grade — neither of which is visible. Assessment is therefore partly about what can be established and partly about being honest that some of it cannot be, without excavation.
What We Look At Here
- Foundation type identified: continuous, stepped, pier, or pole and beam
- Cracking at step transitions assessed for displacement rather than presence
- Downhill-side cracking, which distinguishes slope-driven movement from ordinary settlement
- Pole and pier condition at grade, where decay and corrosion concentrate
- Lateral bracing of tall pier or pole systems
- What can be determined without excavation, stated explicitly rather than implied
More on the service itself: Foundation Inspection. More on the area: West Hills.
Questions
Frequently Asked Questions
My West Hills house is cracked on the downhill side only. Is that slope movement?
It is the pattern most consistent with it, since the downhill side is where a slope-driven load concentrates. It warrants a closer look at whether ground beyond the house is also moving, which may need a geotechnical opinion as well as a structural one.