How to fix a yard that floods near the foundation?

 
Assess the Problem and Identify Water Sources
 

• Examine the yard during and after heavy rain to observe where water is pooling, noting any low spots, hardpan layers, or obstructions that might be preventing proper drainage.
• Inspect nearby downspouts, gutters, and landscape features to determine if they contribute excess water near the foundation.
• Consider whether underground conditions such as clay soil, compacted layers, or improper grading are exacerbating the flooding.

 
Improve Grading and Soil Drainage
 

• Regrade the yard to ensure a gradual slope away from the foundation; an ideal slope is roughly 1/4 inch per foot. This helps direct surface water away from the house.
• Create swales or shallow trenches that guide water to designated drainage areas where it can safely disperse.
• Amend the soil by incorporating organic matter to enhance permeability and support grass or other vegetation that can absorb water.

 
Upgrade Gutter and Downspout Systems
 

• Clean gutters and downspouts to remove debris that may impede water flow; ensure they’re securely attached and functioning efficiently.
• Extend downspouts so that water is discharged at least 5 to 10 feet away from the foundation, reducing the risk of water pooling near the house.
• Install splash blocks or drainage channels at the exit of downspouts to help disperse water further from the foundation.

 
Install Additional Drainage Solutions
 

• Consider installing a French drain along the problem area near the foundation. A French drain, consisting of a perforated pipe in a gravel-filled trench, effectively captures and redirects water away from the house.
• If the water accumulation is severe, evaluate the need for a sump pump. This device collects excess water and pumps it away from the foundation, thereby protecting the structure.
• In some cases, adding a dry well or underground drainage basin can provide temporary storage and slow release of water, reducing pressure on the foundation.

 
Enhance Landscaping for Better Water Management
 

• Introduce rain gardens or native plants with deep root systems that are capable of absorbing significant amounts of water, thereby reducing surface runoff.
• Use permeable paving materials for walkways, driveways, and patios near the foundation to allow water to infiltrate the soil rather than run off onto impervious surfaces.
• Mulching and the use of ground covers can improve water absorption and reduce erosion along slopes near the house.

 
Consult Professionals When Needed
 

• If flooding is persistent or if structural damage is suspected, consult with a drainage specialist, landscape architect, or foundation expert.
• Professional evaluations may reveal underlying issues such as inadequate soil conditions or structural concerns that need more comprehensive intervention.
• In areas such as St. Louis and Nashville, local environmental factors are integrated into the approach to ensure that drainage solutions effectively address unique soil and weather challenges.
• Hiring experts helps ensure that the drainage design complies with local building codes and that all work is performed safely and correctly.