Foundations in Polk County, OR

Yes, we serve Dallas, Monmouth, and all of Polk County for foundation excavation work. We handle footing trenches, crawl spaces, slab cuts, and pier holes for residential and small commercial builds.

Polk County clay holds water instead of draining it, so trench walls can slump and the trench bottom can go soft when wet. A proper dig reaches firm bearing soil below the active clay layer and keeps water routed away from the excavation.

Depth is set by your engineered plans and must reach undisturbed bearing soil below any organic or soft clay layer. Your engineer and the local building department specify the required depth for your site.

We undercut the soft material until we reach firm soil, then bring the grade back with compacted structural base. Pouring concrete on soft or saturated subgrade causes settlement and cracking, so this step is not skipped.

Yes, Iron Edge Excavation works throughout Polk County including Falls City and Grande Ronde. Hillside and foothill lots in those areas can involve mixed soils and grade changes, which we account for in the dig.

Native Willamette Valley clay is generally a poor structural backfill because it holds water and does not compact reliably. Imported crushed rock or engineered fill is typically brought in for structural backfill around footings.