Foundation Excavation in Lewis & Cowlitz County, WA | Rockridge — Rockridge General Engineering & Excavation #1 Site preparation contractor in Lewis & Cowlitz County, WA

intro

Rockridge excavates and prepares foundations for new homes, shops, garages and commercial buildings. We dig to design elevations, check the subgrade, and backfill and compact so your foundation sits on stable, code-compliant ground.

We work with homeowners, builders and general contractors throughout Lewis and Cowlitz counties.

What’s included

Layout verification against plans and stakes
Footing, stem wall and basement excavation
Over-excavation and structural fill where soils are poor
Subgrade evaluation and compaction
Footing drains & downspout drains
Backfill and compaction around the finished foundation

Our process

Plan and soils review: we check plans and any geotechnical report.
Layout: we verify stakes and elevations before digging.
Excavation: dug to design depth with clean, square cuts.
Subgrade prep: compacted and ready for forms and inspection.
Backfill: after the foundation is poured, we install drains, backfill, grade min 2% fall from home for drainage

WHY Rockridge

Precise elevations, so your concrete crew isn't fixing our mistakes
Clearing, pad, foundation, utilities and septic from one contractor
Work to plans, geotechnical reports and inspection requirements
Licensed Washington contractor (WA LIC # ROCKRGE816DF)

Foundation excavation FAQ

Do I need a geotechnical report? Many commercial projects and sites with steep slopes or soft soils do. For typical home sites the county may not require one. We'll flag soil concerns we see during excavation.

What if you hit poor soil? We over-excavate the soft material and replace it with compacted structural fill, as directed by the plans or engineer.

Do you backfill after the foundation is poured? Yes. We install footing drains, downspout drains, backfill and compact around the foundation and grade so water flows away from the building

Do you dig basements? Yes.