Driveways are big, hard surfaces that shed water fast. When a driveway floods, water pools on the concrete, sheets across it, or runs toward the garage and house.
Most driveway flooding comes from the driveway's slope, settled panels, or water from the roof and yard draining onto it.
What you may be seeing
- Water pooling on the driveway
- Water sheeting across the driveway in storms
- Water running toward the garage
- Algae or stains where water sits
- Ice risk in freezing weather
- Silt or mulch washed onto the concrete
First question: does the water pool on the driveway or flow across it?
Pooling points to settled panels or a low area. Flowing water points to runoff from the roof, the yard or a slope toward the garage.
If water pools in one area
A panel may have settled, creating a low spot.
Possible causes:
- Settled concrete
- Cracked or heaved panels
- Low area at the driveway apron
If water runs toward the garage
The driveway slopes toward the house.
Possible causes:
- Driveway designed to slope inward
- Garage set lower than the street
- Settled panel at the door
If water flows onto the driveway from beside it
Side yards, beds or downspouts drain onto the concrete.
Possible causes:
- Downspouts at the driveway edge
- Beds higher than the driveway
- Neighbor's runoff
What you can check yourself
Only check these safely and after rain has stopped. Do not dig near marked utilities, and do not go near electrical equipment that is standing in water.
- Watch the driveway during rain
- Look for downspouts emptying onto it
- Check panels near the garage for settling
- See whether beds wash onto the concrete
- Check that the street gutter isn't blocked
Answer 20 quick questions → to get a preliminary drainage assessment.
What a drainage professional may evaluate
- Slope survey of the driveway
- Trench drain layout and outlet
- Downspout routing options
- Concrete condition assessment
Most common causes
Slope toward the garage
Water runs to the door.
Settled panels
Low areas hold water.
Roof runoff
Downspouts dump onto the concrete.
Side-yard drainage
Adjacent ground drains onto the driveway.
Blocked street gutter
Water can't leave at the curb.
Possible solutions
The right fix depends on where the water comes from, where it collects and where it can legally and physically go. These are the solutions most often considered:
Channel (trench) drain
A grated linear drain across the driveway, piped to an outlet.
Downspout drainage
Pipe roof water past or under the driveway.
Concrete leveling or replacement
Raise or replace settled panels.
Regrading beside the driveway
Stop adjacent soil from draining onto it.
Swale
Guide water alongside the driveway to the street.
When to call a drainage professional
- Water reaches the garage or house
- Panels have settled significantly
- Water crosses the driveway in most rains
- A trench drain needs an outlet
Frequently asked questions
How do I stop water from pooling on my driveway?
Find out whether it's a settled panel (repair or level the concrete) or runoff (redirect downspouts, add a trench drain or regrade beside the driveway).
Where should a driveway trench drain go?
Usually across the driveway where water collects, often just in front of the garage, piped to a legal outlet.
Can a driveway be leveled?
Settled panels can sometimes be raised. Badly damaged panels may need replacement. A concrete professional can advise.
Bottom line
Driveway flooding is either a low spot in the concrete or runoff from somewhere else. Fix the concrete or intercept the water.
This page is educational and does not replace an onsite evaluation. Conditions, codes and HOA rules vary by property.