Brynion Excavation provides professional grading services for residential and commercial properties throughout Kelso, WA, Longview, Woodland, and the broader Southwest Washington area. Grading is the precision work that determines whether a site drains correctly, whether a slab sits flat, and whether a driveway holds its surface over time. We perform both rough grading — moving large volumes of material to establish design grades after excavation or land clearing — and finish grading, the final pass that creates smooth, accurate surfaces ready for concrete, asphalt, landscaping, or building pads. Getting the grade right at both stages prevents expensive drainage problems and rework down the road.
(360) 485-6579
Brynion Excavation uses GPS-assisted and laser grading technology to hold tight tolerances across large areas — critical for slab-on-grade work, parking lots, and drainage swales where even a few tenths off grade cause standing water. Soil compaction is an integral part of the grading process: we compact fill in lifts with vibratory equipment and test density where specifications require it, so the finished grade supports the load it’s designed for. Services include cut-and-fill balancing to minimize haul costs, driveway and access road grading, detention basin shaping, yard regrading for drainage correction, and finish pad preparation for pole barns, garages, and outbuildings in Kelso, WA and surrounding areas.
(360) 485-6579
With over 15 years operating out of Kelso, WA, Brynion Excavation understands how SW Washington’s clay soils and seasonal rainfall affect grading work. Slopes that look correct in summer can fail to drain adequately after the first wet season if the grade design doesn’t account for local soil behavior. We read sites carefully before we grade them, and our work is coordinated directly with your concrete contractor, civil engineer, or GC to make sure the grades we deliver match what the next trade needs. Contact Brynion Excavation to schedule a free estimate for your residential or commercial grading project in Kelso, WA.
(360) 485-6579
We combine experience, reliability, and local knowledge to deliver excavation services you can count on. From emergency appointments to long-term projects, we get the job done right.
We complete every excavation project on time with efficient workflows, dependable equipment, and no unnecessary delays.
Need excavation help fast? We offer emergency appointments for urgent site issues that require immediate attention.
We provide transparent estimates and fair pricing, delivering quality excavation work without hidden fees or inflated costs.
As a locally owned company, we proudly serve Kelso and surrounding areas with care, integrity, and accountability.
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Answers to common questions about our excavation and site preparation services in Kelso, WA.
Rough grading establishes the general site elevation and slope — it’s the heavy dirt-moving phase that happens after clearing and excavation, shaping the site to approximate design grades. Finish grading is the final precision pass that brings the site to exact elevation, smooths the surface, and ensures proper drainage slopes across every finished area. Both phases are necessary on most construction sites in Camas, WA, and Brynion Excavation handles both with the same crew and equipment to keep handoffs clean.
Brynion Excavation grades to engineered or design-specified slopes — typically a minimum of 2% grade away from structures. On sites without engineered plans, we assess natural drainage patterns and establish positive drainage away from building pads and toward outlet points. Laser grading equipment lets us verify slope across the full graded area before we leave the site. We flag any design-grade conflicts we identify during the work so they can be resolved before the concrete or paving contractor arrives.
Brynion Excavation compacts fill material in lifts per standard earthwork practice on all grading projects. On commercial or permitted projects that specify compaction testing (typically per ASTM D1556 or nuclear gauge method), we coordinate with an independent geotechnical testing lab to provide density reports for the project record. Residential grading projects typically don’t require third-party testing, but we compact correctly regardless — a failed grade under a slab is a costly mistake.
Yes. Driveway regrading and access road grading are common standalone jobs Brynion Excavation performs across Kelso, WA, Castle Rock, and Kalama. Work typically includes cutting high spots, filling low spots, establishing cross-slope for water runoff, and adding fresh gravel top-dressing where needed. If the driveway has a drainage problem at a culvert or catch basin, we address that as part of the job. We provide a free on-site estimate so you know exactly what the work involves before we start.
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