Darrington sits up against the Cascades, with Whitehorse Mountain on the skyline and a harder rain than the towns down on the flats. Soils run rocky, lots break off into steep cuts, and water does not sheet across a lawn so much as it cuts a track and takes the soil with it. Foothill drives fail where water runs down the wheel track. The rock needs a crown, a ditch, and a size that does not float away.
Snohomish County · ZIP 98241 · 2020 population 1,358
A drive that can take the wash
We use crushed rock that locks, and we give the water a ditch that is not the middle of the drive. Culvert crossings get cleaned or replaced if the old pipe is the reason the rock keeps disappearing.
Steep sections may need more than gravel. If the grade is a slide waiting for rain, we talk about a wall or a different route before we spread three loads that end up at the bottom.
The ground in Darrington
This is a small town with mountain weather. A wall that would be decorative in Mill Creek is structural here: it is holding a bank that wants to move every winter. We see shallow, rocky ground, overhanging fir and hemlock, and driveways that wash out where the grade dumps onto the road.
Planting lists shrink to what can handle cold, wet, and poor soil. Huckleberry and mountain hemlock already grow on the edges of these properties. A lawn is possible on the flatter bench of a lot, but it needs seed and soil that can take a short season, not a turf schedule copied from Everett. Cleanup is often about limbs over the roof and ditches that have filled with gravel from the bank above.
How we do the work
Gravel stays put when it has a compacted base, a fabric or a separation from the clay, a slight crown or a cross slope, and an edge. A load of rock dumped on the grass is a mud pit by spring. We dig out the soft soil, build the base, and top it with the rock you actually walk and drive on.
The top rock is not the same as the base rock. Base is angular and locks. The surface might be smaller crushed rock or a cleaner gravel, depending on whether this is a drive, a dog run, or a path.
What we look at first
- Cars, foot traffic, or both
- How soft the ground is in March
- Where the water crosses the drive today
- An edge against lawn or beds so the rock does not migrate
Refresh
Gravel is maintenance. Every few years a drive needs rock added and graded back to crown. We would rather tell you that than sell a “permanent” gravel surface. Pavers are permanent. Gravel is a good, honest, recurring surface.
Fabric
Separation fabric keeps clay from pumping up. It is not weed magic, and it is not a substitute for digging out the mud. We lap it and we cover it. Sun-baked fabric at the edge means the gravel was spread too thin.
Edges and weeds
Steel, timber, or a paved border on a walking path. On a farm drive, the ditch is the edge. Weeds in gravel get pulled or treated early, before the root is a shrub. A thick, clean surface grows fewer of them than a dirty thin one.
More from this crew
- Gravel installation across Snohomish County
- French drain installation in Darrington
- Fence installation in Darrington
- Hardscaping in Darrington
- Paver installation in Darrington
- Gravel installation in Granite Falls
- Gravel installation in Arlington
Sources for the climate and the water
- USDA plant hardiness map for choosing plants that can take a Snohomish County winter.
- EPA WaterSense on watering less once a lawn or a new planting is established.
- EPA Soak Up the Rain on keeping roof and yard water from becoming someone else’s problem.
