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Our Site Grading Services

Rough Grading

Bulk earthmoving that establishes the right slopes and elevations. This step shapes your land to match project plans and prepares for future construction.

Pad Building & Compaction

We construct build-ready pads for shops, homes, and commercial buildings, verifying compaction levels (95%+) 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 your 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.

Site Grading Services in Southwest Washington

At Columbia Groundwork Inc., we provide precise site grading services that prepare your land for safe, reliable, and code-compliant construction. Whether you’re building a home, pole barn, shop, driveway, or a large commercial project, our team ensures your site is level, stable, and properly drained before the first foundation is poured.

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

Service Area

We proudly serve property owners and contractors across:

  • Cowlitz County (Castle Rock, Longview, Kelso, Woodland, Kalama)

  • Clark County (Ridgefield, La Center, Vancouver area)

  • Lewis County (Toledo, Winlock, Chehalis, Centralia)

Why Choose Columbia Groundwork?

  • Local expertise in Southwest Washington soils and codes

  1. Modern equipment with laser precision

  2. Full compliance with engineering and municipal standards

  3. Dedicated crews with a reputation for reliability and efficiency

Get a Free Site Grading Estimate

Ready to make your property build-ready? Contact Columbia Groundwork Inc. today for a no-obligation quote.


© 2017 Columbia Groundwork.
LIC #COLUMGI828N1

Email: ryane@columbiagroundwork.com

Phone: (360) 957-8847

Address: P.O. Box 1855, Castle Rock, Wa 98611