Glacier-carved hills

Hydroseeding in Bothell, WA

Bothell straddles King and Snohomish counties on hills carved by glaciers along the Sammamish River.

We walk your property first, then put the quote in writing at no charge
Seeding dates planned around Seattle's dry summer and wet winter
One crew for grading, seeding and sediment control

Slopes and Lawns in Bothell

Hydroseeding in Bothell often comes with a slope question. Glaciers carved north-south channels that now form the city's "seven hills," and some areas south of the Sammamish River are prone to landslides. The highest point, Nike Hill, reaches about 510 feet. On steep or slide-prone ground, the goal is to cover soil fast and keep water off the slope, not just to grow a lawn.

Treating hillside soil

On a bank, we avoid extra fill at the top and recommend that downspouts and runoff go to a proper outlet rather than over the edge. Then we either hydroseed a bonded fiber matrix or put down erosion control blankets. If drainage is part of the problem, a grading crew can handle trenching for a drain line before we seed.

North Creek and the river

Most of Bothell drains to the Sammamish River or its tributaries, North Creek and Swamp Creek. North Creek's valley farmland was turned into office and light-industrial sites from the 1980s, and a 58-acre wetland along the creek was restored by UW Bothell in the 2000s. Projects near those streams need silt fence and inlet protection in place before soil is disturbed.

A river that was straightened

The Army Corps of Engineers dredged and straightened the Sammamish River in 1916. Low ground near the river can stay wet; we check finish grade and drainage before seeding lawns there.

Growth across two counties

Bothell grew 44 percent from 2010 to 2020, and 60 percent of residents lived on the King County side in 2020. Annexations in 1992 and 2014 brought in Canyon Park and about 6,000 more residents, along with plenty of new lawns and builder lots.

Bothell work we price often

Slope stabilization south of the river
Builder hydroseeding in new plats
Silt fence near North Creek
Renovating tired lawns in established neighborhoods

Get a free estimate or call (206) 208-7934.

Bothell Ground Facts

Glacial hills. Glaciers carved north-south channels that form Bothell's seven hills; the highest point is Nike Hill at about 510 feet.
Landslide risk. Some areas south of the Sammamish River are prone to landslides.
Drainage pattern. Most of the city drains to the Sammamish River or its tributaries North Creek and Swamp Creek; part drains to Lake Washington through the Juanita Creek basin.
Two counties. Bothell straddles King and Snohomish counties; in 2020, 60 percent of residents lived in King County.

Slope Stabilization & Erosion Control in Seattle, WA

Our Services in Bothell, WA

Bothell Questions

My lot is on a hill south of the river. Can I just seed it?

Seed alone is rarely enough on slide-prone slopes. We pair it with bonded fiber matrix or blankets and recommend sending runoff away from the slope face.

Do you work on both the King and Snohomish County sides?

Yes, we work throughout Bothell on both sides of the county line.

What do you install near North Creek wetlands?

Silt fence along the wetland side, inlet protection at drains and fast hydromulch cover after grading.

Can you seed a new plat before the homes are finished?

Yes. Builders often have common areas and lot edges seeded early, then finish the yards after construction.

Free Estimates in Bothell, WA

Free estimates throughout Bothell.

Call (206) 208-7934 Free Estimate