Earthwork Services in Greater Seattle Area

Building to the Geotech Report, Not Around It

Every earthwork scope worth trusting runs off the geotechnical report. It's the document that tells you what the soil under the site will actually do once there's weight on it, and it sets the specs the earthwork has to hit: fill in what lifts, compacted to what density, over what prepared subgrade. Skipping past it doesn't save money, it just moves the cost downstream to whoever discovers the problem.

Here's what building to the report looks like on our jobs:

• Fill placed in the lift thickness the report specifies, compacted and tested before the next lift goes down, not all at once and hoped for.
• Density testing coordinated with your testing agency at the points the spec calls for, so passing results are on record before we move on.
• Soft or unstable subgrade reinforced to spec where the report flags it, instead of grading over a problem that resurfaces later.
• Proof-rolling and subgrade prep done to spec, so the pad the foundation crew inherits is verified, not assumed.

Working this way is why our grading passes inspection and why the schedule behind us doesn't slip on a retest. When you bid an earthwork package to us, you're bidding it to a crew that reads the geotech report as the job, not the fine print.

The Ground You Don't See Until It Fails

Earthwork is easy to underestimate on a bid because most of it ends up buried, under the slab, under the base course, out of sight. But it's the ground every other trade builds on, and when it's off, the cost doesn't show up until it's expensive to dig back to.

The places it usually bites:

• Foundations: a pad short on compaction or off grade settles once the building's weight lands on it, which shows up as cracking.
• Roads and paving: subgrade that wasn't compacted right telegraphs straight up through the base and into failed asphalt.
• Drainage: grading that doesn't move water the way the plan intends turns into ponding and erosion after the crew's gone.
• Schedule: a subgrade that fails a density test holds up everyone waiting on that ground until it's reworked.

Getting this phase right the first time isn't about doing extra. It's about not paying to move the same dirt twice. That's the part of the job we take most seriously, because we're usually the first sub on site and the one setting the pace for everyone after us.

Balancing the Site Before You Pay to Truck It

The cheapest dirt on any job is the dirt you don't have to haul. Before we bid, we look at the cut and fill quantities the plans call for and figure out whether the site balances on its own or needs material moved in or out. That number drives a real part of your cost, because import means buying and trucking fill, and export means loading out and paying to dump.

Where the site doesn't balance, here's how we handle it:

• Reusing suitable on-site material as structural fill where the geotech report allows it, instead of hauling it off and buying it back.
• Importing select fill only in the quantities the design actually needs, so you're not paying for material that sits in a stockpile.
• Coordinating export and disposal of unsuitable or excess material, with the haul figured into the bid up front, not sprung on you mid-job.
• Sequencing the earthwork so cut moves straight to fill on the same site where it can, cutting truck trips and days off the schedule.

Getting the balance right is where an earthwork bid is won or lost, so we put the cut, fill, and haul numbers on the table before the work starts.