Looking for a drainage contractor in Cathlamet, WA? Describe your project once and up to five drainage contractors who work in Cathlamet and Wahkiakum County get back to you with a quote. It's free and there is no obligation.
Cathlamet is home to about 608 people (2024 Census Bureau estimate), a growing community (+8.4% since 2020). With 1,201 people per sq mi, it is a suburban area. Heavy rains, clay soils and flat lots are common causes of soggy yards here.
Cathlamet at a glance
- Population (Census Bureau estimate, 2024)
- 608 (+8.4% since 2020)
- Rank in Washington
- 227th of 281 cities and towns
- Land area
- 0.5 sq mi
- Population density
- 1,201 people per sq mi (suburban)
- Type
- Town (Cathlamet town)
- Main county
- Wahkiakum County
What to check before hiring in Cathlamet
- Call 811: utilities must be marked before digging.
- Outlet: ask where the water will go; local rules limit discharges toward neighbors and streets.
- Permits: in Washington, large grading jobs may need a permit from the city or county.
- Price drivers: length of drain, depth, outlet, and lawn or hardscape restoration.
Useful official resources
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Call 811
Official information and guidance.
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EPA: green infrastructure for homeowners
Official information and guidance.
Services available in Cathlamet
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French drain or yard drain
French drain, catch basins or channel drains to move water away from the problem area.
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Grading and regrading
Regrading the soil so that water flows away from the house.
Frequently asked questions in Cathlamet
How much does yard drainage cost in Cathlamet, WA?
It depends on the length of drain, the depth and the outlet. Describe the problem: contractors who serve Cathlamet reply with a quote.
How long does it take?
Most residential drains take one to three days.
Will a drain fix a wet basement?
It can help when water comes from the yard; inside problems may need waterproofing too.
Which drainage contractors will contact me?
Up to five independent drainage contractors who serve Cathlamet and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.