At Columbia Groundwork Inc., we provide precise site grading that prepares your land for safe, reliable, code-compliant construction. Whether you're building a home, pole barn, shop, driveway, or a large commercial project, we make sure your site is level, stable, and properly drained.
Our Site Grading Services
Rough Grading
Bulk earthmoving that establishes the right slopes and elevations, shaping your land to match project plans.
Pad Building & Compaction
Build-ready pads for shops, homes, and commercial buildings, verified to 95%+ compaction to meet engineering standards.
Finish Grading
Fine grading that levels soil or gravel to tight tolerances, ideal for lawns, gravel driveways, and hardscape base prep.
Drainage Solutions
We cut swales, install culverts, and re-establish crowns to move water safely away from structures and access roads.
Frequently Asked Questions
What is site grading?
Site grading shapes land elevations so structures sit level, drainage flows properly, and surfaces meet code requirements.
Do I need permits?
For smaller projects, permits may not be necessary. Larger cuts, fills, or grading near wetlands and slopes may require county or city approval. We help you navigate the process.
Can you fix drainage on an existing site?
Yes. We can re-grade surfaces, cut swales, and install culverts or ditches to solve drainage issues.
Why Site Grading Matters
Proper grading does more than make your property look clean and level. It prevents water damage, foundation settling, and drainage failures that can cost thousands to fix later. Our crew combines heavy equipment, laser/RTK control, and years of experience to deliver grading that sets your project up for long-term success.
- Protects foundations from water pooling
- Ensures correct slope for drainage and erosion control
- Prepares a stable base for construction pads, driveways, and landscaping
- Meets county and city code requirements
Why Choose Columbia Groundwork?
- Local expertise in Cowlitz County soils and codes
- Modern equipment with laser precision
- Full compliance with engineering and municipal standards
- Dedicated crews with a reputation for reliability and efficiency
Service Area
Castle Rock, Longview, Kelso, Woodland, and Kalama, all of Cowlitz County.
Get a Free Site Grading Estimate
Ready to make your property build-ready? Contact us today for a no-obligation quote.
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