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How to Fix Yard Drainage in Clay Soil (Peoria Guide)
Why Peoria yards hold water after every rain, how to figure out where the water is coming from, and the fixes that work, from cheapest to most involved.
Fixes, cheapest first
- Extend downspouts
- Fill low spots and regrade
- Aerate and add organic matter
- Rain garden
- French drain or buried pipe
Short answer
Why does my yard stay wet?
Peoria’s heavy clay soil drains slowly, so rain sits on top instead of soaking in. Most wet yards come down to three things: water pouring out of downspouts too close to the house, low spots with nowhere to drain, and grading that tilts toward the house or a neighbor’s yard instead of away.
Step 1
Figure out where the water comes from
- Go outside during a hard rain and watch. Where does water start, and where does it end up?
- Check downspouts: are they dumping right next to the foundation?
- Look for low spots where water still sits a day or two after rain.
- Check whether neighboring yards drain onto yours.
- Push a screwdriver into the soil. If it’s hard to push even when damp, compaction is part of the problem.
Step 2
Fixes from simplest to most involved
| Fix | Good for | Effort |
|---|---|---|
| Downspout extensions | Water dumping at the foundation | Low; DIY friendly |
| Fill and regrade low spots | Puddles in the lawn; soil sloping toward the house | Moderate; a common guideline is about 6 inches of fall over the first 10 feet from the house |
| Core aeration and compost | Compacted clay that sheds water | Low to moderate; yearly |
| Rain garden | Moving roof runoff to a planted low area | Moderate |
| Buried downspout lines | Carrying roof water away underground | Moderate to high |
| French drain or catch basin | Persistent wet areas and water moving across the yard | High; needs a place to outlet |
Utilities must be marked through JULIE (811) before digging any trench.
Avoid
Common mistakes
- Piling topsoil against the foundation without fixing the slope, which can trap water against the house.
- Sending water onto a neighbor’s property.
- French drains with no outlet. The water has to go somewhere lower.
- Sand mixed into clay. A little sand in clay can make it pack harder, not drain better. Organic matter like compost works better.
Money back
Drainage fixes can lower your stormwater bill
Peoria bills a stormwater fee based on hard surfaces and offers credits and grants for things like rain barrels and rain gardens. See how to lower your Peoria stormwater bill.
FAQ
Drainage questions
Will aeration fix standing water?
It helps compacted lawns absorb more water, but it won’t fix a low spot or bad grading.
When should I call a pro?
When water reaches the foundation, the problem crosses property lines, or the fix needs regrading or a buried drain.
How much does drainage work cost?
It ranges widely, from a few downspout extensions to full regrading and drain lines. See drainage and grading.
Related: Drainage and grading · Dry creek beds · All guides
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