Grading & Drainage

Preparing your site for a solid, dry, and long‑lasting foundation

Before concrete is ever poured, your project’s success depends on what happens in the dirt. Cinnabar Construction’s grading and drainage work is focused on protecting your home or building from rainwater, flooding, and long‑term foundation issues—especially in Arizona’s challenging soil and storm conditions.

Overview

We use modern equipment, experienced operators, and proven grading plans to shape your site correctly from the start, so water flows where it should and your structure has a stable base for decades to come.

Why Proper Grading & Drainage Matters

  • Keeps rainwater and storm runoff away from your foundation
  • Reduces the risk of settling, cracking, and costly repairs later
  • Protects landscaping, hardscapes, and driveways from erosion
  • Helps your property perform correctly during heavy monsoon rains

Our Approach: Build on Better Dirt

One key difference in how we work: we do not simply reuse the existing native soil.

Cinnabar Construction always brings in clean, suitable dirt from outside the site, rather than re‑compacting the same disturbed material. This helps:

  • Create a more stable, consistent base under slabs and foundations
  • Reduce hidden soft spots that can lead to sinking or cracking
  • Improve long‑term performance of both the structure and surrounding surfaces

By starting with the right material—not just whatever is already there—we help prevent foundation problems before they ever have a chance to start.

Grading & Drainage Services

We tailor each grading and drainage plan to the specific site and structure, including:

  • Site evaluation and drainage assessment
  • Rough and finish grading for homes and buildings
  • Foundation and pad preparation
  • Cutting, hauling, and filling with imported dirt
  • Shaping swales, berms, and slopes for proper water flow
  • Coordination with landscaping and hardscape plans

Throughout the process, you work with a team that understands both the engineering side and the practical realities of building in Arizona. Our project management keeps grading and drainage aligned with your overall schedule so the foundation and building work can move forward smoothly.

Technical Scope – Grading & Drainage

  • Site evaluation and drainage assessment based on plans and existing conditions
  • Coordination with civil/structural engineers and survey teams
  • Rough and finish grading for building pads, driveways, and landscaped areas
  • Cut, haul, and fill operations using imported, suitable dirt rather than reusing disturbed on-site soil
  • Compaction and moisture conditioning of imported fill per engineering specifications
  • Establishing pad elevations, slopes, and drainage paths to move water away from structures
  • Shaping swales, berms, and grade breaks to control and direct surface runoff
  • Preparation for foundation, flatwork, and hardscape installation
  • Ongoing project management to keep grading and drainage in sync with the overall construction schedule

Start Your Project on Solid Ground

If you’re planning a new build, addition, or major renovation, we can evaluate your site and design a grading and drainage plan that protects your investment long term.