Mukilteo · Snohomish County
Grading & Drainage in Mukilteo, WA
Grading, French drains, retaining walls and RV and equipment pads across Mukilteo, from Old Town to Harbour Pointe. Built so water moves away from the house instead of toward it.
Why drainage matters on Mukilteo properties
Glacial till on the plateau, with sand and silt layers in the bluffs that are sensitive to water. Several areas along the shoreline are mapped landslide hazard zones. That is the root of most wet-yard, wet-crawlspace and failing-patio problems we see. Water that cannot soak in runs along the surface or perches on the hard layer until it finds the lowest point.
High bluffs above Possession Sound, cut by deep gulches like Japanese Gulch and Big Gulch. Harbour Pointe sits on the plateau above, mostly level. Slopes push water downhill onto the next lot, and flat ground leaves it nowhere to go. Getting the grade right is cheaper than fixing what water does to a foundation.
Possession Sound shoreline, the gulch streams and a scattering of wetlands carry buffers. Uncontrolled stormwater over a bluff edge is one of the biggest risks on Mukilteo properties. Where drainage can legally discharge depends on these features, so we plan the outlet first and the trench second.
Common grading projects in Mukilteo
Wet yards and crawlspaces
Regrading and French or curtain drains for Mukilteo yards that stay soggy all winter because water perches on the hard till below.
Retaining walls on slopes
Block and rock retaining walls that hold back sloped Mukilteo yards and driveways, built with drainage behind them so they last.
Grading away from the foundation
Reshaping the ground around Mukilteo homes in Old Town and Harbour Pointe so it falls away from the house, the cheapest fix for water at the foundation.
Ditches and culverts
Cleaning and regrading drainage ditches, and setting culverts under driveways, on the low, wet ground around Mukilteo.
Downspout tightlines
Connecting downspouts to solid pipe that carries roof water to an approved outlet instead of dumping it next to a Mukilteo foundation.
What our grading work in Mukilteo covers
- Retaining Walls
- French Drains & Footing Drains
- Rough & Finish Grading
- RV & Equipment Pads
- Yard Drainage Correction
- Erosion Control
Permits & Rules
Grading and retaining wall permits in Mukilteo
Inside city limits, the City of Mukilteo handles grading permits; outside them, Snohomish County Planning and Development Services (PDS). Small regrading and yard drains usually do not need one, but larger volumes of cut or fill, work in a critical area, or changes to how water leaves the property often do.
Retaining walls taller than about four feet, or walls holding back a driveway or slope, typically need engineering and a permit. We build to the approved plan and can tell you on the site walk when a wall is likely to need one.
Cost & Timing
What affects the cost of grading in Mukilteo
We do not publish flat prices because no two Mukilteo sites are the same. These are the things that move the number most here.
Slope and access
Steep Mukilteo lots take smaller machines, more careful staging and sometimes engineering, which adds time compared with flat, open ground.
Soft ground
Where Mukilteo soils are soft or wet, over-excavation, fabric and imported rock are often part of the job, and we price that in up front.
Buffers and permits
Work near Mukilteo's rivers, creeks, lakes or shoreline can need permits and limits on where machines go. That affects scope and schedule more than price.
Haul-off and disposal
How much material leaves the site, and what it is, drives cost. Our own trucks keep that predictable on Mukilteo jobs.
When to schedule grading in Mukilteo
Grading in Mukilteo goes best in the drier months, when soil compacts properly and trenches stay open. Wet-season work is doable with erosion control and the right material, and we plan for it in the quote.
Mukilteo's till soils hold water through the winter, which is when drainage problems show up. That is a good time to see where water goes, and the dry season is the time to fix it.
Where We Work
Grading and drainage across Mukilteo
Mukilteo runs from the ferry landing and Old Town on the water up to the Harbour Pointe neighborhoods beside Paine Field. Much of the city is built on or near bluffs, so slope and drainage questions come up on almost every job.
We regrade yards, install French drains and curtain drains, build block and rock retaining walls, and set gravel RV and equipment pads across Old Town, Harbour Pointe, Mukilteo Speedway corridor, Picnic Point area and Olympus Terrace.
Older homes and cottages in Old Town, view homes along the bluffs, and 1980s to 2000s subdivisions in Harbour Pointe. Older lots often have no real drainage at all, while newer ones sometimes have drains that were never connected. We find out which before we dig.
We also do grading nearby in Lynnwood, Mill Creek, Everett and Edmonds. See everything we do in Mukilteo, read our full guide to grading, or browse all service areas.
Why DirtRaptor
Why Mukilteo owners call us for grading
Owner on the machine
On Mukilteo jobs you talk to the person who walks the site, writes the quote and runs the equipment.
Trees and dirt, one crew
If trees are in the way of your Mukilteo project, we take them down ourselves instead of waiting on a separate tree service.
Our own trucks
Haul-off and deliveries run on our schedule along SR 525 (Mukilteo Speedway) and SR 526, not a subcontractor's.
Built for slopes
We plan machine placement, drainage and erosion control for Mukilteo's sloped ground before we start.
How a grading job runs
- 01
Site Assessment & Water Tracing
- 02
Design & Elevations
- 03
Excavation & Base Preparation
- 04
Build, Drainage & Backfill
Real Jobs
Recent DirtRaptor work near Mukilteo
Demolition · Everett, WA
Condemned 100-Year-Old Shed Teardown
A 100-year-old shed, condemned and unsafe, brought down and hauled off — the site left graded flat and clean.
Demolition · Edmonds, WA
Driveway Removal & Concrete Prep
Tearing out an old blacktop driveway and prepping the ground for a new concrete pour — broken material hauled off, base left clean and ready.
Questions
Grading & Drainage in Mukilteo: FAQs
Why does water collect around homes in Mukilteo?
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Glacial till on the plateau, with sand and silt layers in the bluffs that are sensitive to water. Several areas along the shoreline are mapped landslide hazard zones. When water cannot soak in, it follows the surface toward the house. Regrading so the ground falls away from the foundation, plus a drain where needed, usually solves it.
Do retaining walls need a permit in Mukilteo?
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Walls over about four feet, or walls supporting a driveway, building or slope, usually need engineering and a permit from the City of Mukilteo (or Snohomish County Planning and Development Services (PDS) outside city limits). Shorter landscape walls often do not. We confirm before building.
Where can drainage water go on my Mukilteo property?
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It has to go somewhere approved: an existing storm system, a dispersion area or an infiltration trench where the soil allows. Possession Sound shoreline, the gulch streams and a scattering of wetlands carry buffers. Uncontrolled stormwater over a bluff edge is one of the biggest risks on Mukilteo properties. We plan the outlet before we trench.
How much does grading cost in Mukilteo?
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It depends on the site, so we quote after a free site walk rather than guessing on the phone. The biggest drivers in Mukilteo are usually slope and access, soft ground, buffers and permits. You get a written number with inclusions and exclusions spelled out.
When is the best time to schedule grading in Mukilteo?
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Grading in Mukilteo goes best in the drier months, when soil compacts properly and trenches stay open. Wet-season work is doable with erosion control and the right material, and we plan for it in the quote.
Is it safe to take a tree off a Mukilteo bluff?
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It can be, done right. We usually leave the stump and roots in place on a slope so the soil stays held, lower the tree in sections instead of dropping it, and keep heavy equipment back from the edge.
Water runs over the bluff on my lot. Can you fix it?
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We can collect it and carry it where it belongs, usually with drains and a tightline down to an approved outlet rather than letting it sheet over the edge. Work on a mapped slope may need engineering, which we flag up front.
How much does a retaining wall cost per foot?
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Face square foot is the usual unit, but cost per foot rises steeply with height because the work behind the wall grows faster than the wall itself. A two-foot garden wall and a five-foot structural wall are different trades. Site access and drainage requirements move it further.
Ready for a real number in Mukilteo?
Send the address and a few photos. We walk the site for free and come back with a written quote.
